Corporate brochure

Your Partner for Solar Energy
Since 1992

Way forward towards “Green Growth”
At EMMVEE, we thrive towards Qualitative and Quantitative Optimization in providing customers with Sustainable
Wide Ranging Solar Power Solutions. The solutions are coupled with distinct approach towards each customer.
Enabling unceasing product improvement and customer dialogue in a desire to create sustainable solar power
generation with reliable and powerful solutions.
EMMVEE’s Sustainable Wide Ranging Solutions comprise of
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2. Large scale Solar Photovoltaic Power projects ranging from 1MW to 50MW are categorized as below:
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3. OEM & Retail Sale of Solar Photovoltaic Modules for DCR & Non-DCR requirements
Clean energy investments offer customers in India a boost in our economy
well into the future. Thus, the time to make a serious commitment to clean
energy deployment is not tomorrow, is not next year, it’s NOW.”

D.V. Manjunatha
Founder and Managing Director of EMMVEE
Greetings
Thank you for your interest in EMMVEE. This brochure seeks to provide an overview of EMMVEE: Our Production, Products, Components
and Services. Since EMMVEE’s inception in 1992, the company has developed various expertises in Solar Water Heating Systems, Photo-
voltaics and Toughened Glass. Thus we have created a multifaceted brochure to present all relevant details related to EMMVEE’s various
business segments and offer you a glance into our company philosophy, our areas of expertise and special features of our products. Our
-
tionships with renowned component manufacturers and greatly emphasize on innovative quality management. With the help of our 650
employees in locations across the world and various suppliers, EMMVEE is able to stand out through excellent customer service. Friendly
and accessible support team at EMMVEE assists the customers and offer solutions to all queries.
For company or any product related enquiry please contact our EMMVEE team.
Sincerely,
D. V. Manjunatha

Contents
EMMVEE - Solar Products from Bengaluru to the world
EMMVEE Photovoltaic Power Private Limited
Project Development and EPC
Photovoltaic Systems
Photovoltaic Modules
Solar Photovoltaic Module Components
Solar Cell
The Embedding Foil
EMMVEE PV Modules: Key Features
Photovoltaic Module Portfolio
On-grid Modules
Off-grid Modules and Standard PV Systems
Quality Management
Tips and Tricks for Mounting and Maintenance
Environmental Compatibility, Waste Disposal and Recycling
EMMVEE Solar Systems Private Limited
Working Principle of Solar Hot Water Systems
Types of Solar Hot Water Systems
Solarizer Portfolio
Glass Enamel Tank
EMMVEE Toughened Glass
References
Roof-top Projects
Solar Water Heating Systems
Notes
Contacts
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EMMVEE Photovoltaics in India
EMMVEE
Solar products from Bengaluru to the world
EMMVEE Group of Companies is an international solution provider in the field of solar energy. EMMVEE, manufacturer
of photovoltaic modules and solar water heating systems has two manufacturing facilities in Bengaluru, India. EMMVEE
is also a prominent player in the field of project development and EPC for MW scale PV power plants. EMMVEE has
placed great emphasis on transparency, service and quality.
EMMVEE is a developer and manufacturer of high performance
monocrystalline and polycrystalline photovoltaic modules,
photovoltaic systems and solar thermal systems in Bengaluru,
the Electronic City of India. We offer various solar water
heating systems, photovoltaic modules and solar applications
since 1992 having more than 650 well trained and highly
motivated employees all over the world working in the
verticals of photovoltaic, solar thermal systems and glass
toughening. EMMVEE is a prominent player in the field of
project development and EPC (Engineering, Procurement
and Construction) for MW scale PV power generating plants.
In the year 1992, Mr. D.V. Manjunatha founded the company
EMMVEE in Bengaluru, India. Starting its activities in the
solar water heater production with sales and marketing office
as EMMVEE Solar Systems Pvt. Ltd., has grown to be the
largest manufacturer of solar water heating systems in India
and probably in Asia. Our eco-friendly products shall not
only go a long way in helping global efforts for conserving
the environment but also helps customers in reducing their
electricity bills thereby generating additional savings. EMMVEE
is continuously working on introducing new age technologies
in both manufacturing process and management practices.
EMMVEE Solar has already installed over 4,00,000 domestic
and industrial systems under the brand name ‘Solarizer’,
total capacity of around 6,00,000 m2
across India which
includes prestigious clients like ETA Properties, TTD Tirupathi,
Jayadeva Hospital and JSS Institutions.
enillatsyrconomgnirutcafunamdetratsEEVMME,7002saylraesA
and polycrystalline Solar PV modules which are suitable
for on-grid and off-grid applications. Today, EMMVEE has
prominent market share in the PV industry across India and
Europe, in countries like Germany, Italy, France and United
Kingdom.
EMMVEE is a competent partner, experienced in planning and
development of Solar PV power plants in India and Europe.
Project Development and EPC services are offered by EMMVEE
not merely for its own projects, but for investors too. Expert advice
and detailed planning by the EMMVEE project development team
ensures smooth and timely construction of the power plant.
EMMVEE specializes in distributing photovoltaic modules for
on-grid and off-grid applications as well as standard and
customized photovoltaic systems for stand alone and roof-top
applications.
5

EMMVEE utilizes the best components to reach the highest degree of efficiency and reliability. We are the first company in using a
special pattern surface glass which reflects the incident light multiple times onto the cells (light trap effect) and increases the energy yield
by 3% compared to flat glass usage in Photovoltaic module manufacturing. The Institute for Solar Energy Research Hameln in Germany
documented the energy yield gain. These glasses show a low level of contamination from dirt particles and other objects, resulting in
high yield when compared to modules with flat glass.
EMMVEE Solar Manufaturing Plant
Roof-top PV System Installation at EMMVEE PV Plant
EMMVEE is completely transparent about its production and suppliers. All relevant information can be found on our website.
Stringent incoming goods inspection of all raw materials and a comprehensive quality management system in production
ensures a consistent high quality level. EMMVEE modules are certified with international standards: IEC61215 Ed. II, IEC61730
and IEC61701 by TÜV Rheinland (German technical inspection agency). The annual TÜV inspections and approval of our
production facilities proves our high quality standard. Hence all our modules meet European and international requirements.
EMMVEE modules and systems have been successfully connected and generate high yield to our customers worldwide.
6

EMMVEE produces high quality photovoltaic modules using the latest and best machinery. 3S and Somont
machines have a unique modular system offering higher productivity with optimised processes. Since its inception,
EMMVEE has grown into an international company with 650 employees. EMMVEE manufactures Solar PV modules in its
manufacturing facilities in Bengaluru.
The production capacity for our on-grid Solar PV module
is 175 MW with the most modern production line in India.
The production takes place in a very clean and dust-
free environment. Each staff member abides with the IMS
standards. The three production lines from 3S is high-tech from
Switzerland offering precision at the same time as speed.
The Rapid TWO soldering lines reach a capacity of 1200 cells
per hour. The Rapid Four was added at end of 2010, which
reached a capacity of 2400 cells per hour. The solar cells get
checked by the machines and are safely put into strings (up to
2000 mm) using the soft touch soldering technique for a perfect
soldering process. The strings are then connected and laminated.
A comprehensive quality management system that is present
in every step of the production and stringent final inspections
ensure consistent high quality. Our qualified specialist staff and
engineers work on continual improvement to achieve optimum
production quality in addition to the automatic production
process.
After the lamination process, the module is sorted and
tested under standard test conditions with the Pasan flasher.
Our off-grid modules are produced automatically on Spire
soldering line as far as the production process does permit.
For smaller modules using cut cells, the manufacturing is
carried out by trained staff with high precision in soldering.
The Rapid TWO by Somont with its
two soldering lines has a capacity
up to 1200 cells per hour.
State-of-the-art Production
7

The services offered by EMMVEE are expanding. With its vast experience in the field of solar energy as a solar PV module
manufacturer, EMMVEE has completed several MW scale Solar PV projects thus becoming a prominent player in the field
of Project development and EPC (Engineering, Procurement and Construction) in India and Europe.
Project Development
Consultation, Planning and Development
EMMVEE is a competent partner, experienced in planning and development of solar power systems in India and Europe. Our expert
engineers ensure the best quality standards through attentive project development. Project development by EMMVEE includes the
complete management of the project.
This service is offered by EMMVEE not merely for its own projects, but for investors too. Expert advice and detailed
planning by the EMMVEE project development team ensures smooth and timely execution of the projects.
EPC (Engineering, Procurement and Construction): Turnkey solution provider
As an EPC company, EMMVEE provides in-house design and construction services for building the solar power plants. Our range
of services includes technical planning of system, selection of the best components and professional installation; everything
under one roof.
Site Selection
&
Approval
PV Plant
designing
Plan
approval
Operation
&
Maintenance
EPC
Our own solar module production and close ties with our
suppliers allow precise selection of every system component.
Consequently, solar power plants become more efficient and
reliable offering secured long-term profits.
EMMVEE monitors the implementation of the PV project,
co-ordinating all construction phases and controlling the
quality of installation work. The delibrate co-ordination of
deadlines provides timely grid connections of large-scale PV
power plant. Yield losses due to deadlock can be avoided.
8

System components
Mounting system
Every PV project is unique and requires customized assembly
solutions, both for roof-top systems on steeply sloping roofs or
ground mounted installations on uneven terrain.
A Salient feature of a project is optimal elevation for the pro-
spective project site. Our solar specialists have gained years
of experience in building reliable Solar Power plants in different
locations and environment.
Before selecting the system standard, one undertakes a compre-
hensive analysis of site-specific weather and soil conditions. The
mounting system must provide stable support for the modules dur-
ing extreme weather conditions like rain, wind, dust or snow. For
safe operation and longevity of a solar power plant, EMMVEE
uses only quality finished materials with the highest corrosion
resistant. The use of appropriate mounting systems and
professional installation ensures high level of security and safe-
guards the system’s yield.
Modules
EMMVEE utilizes its own manufactured PV modules for its project
installations. EMMVEE’s modules are always known for its high
quality, reliability and transparency in usage of the components
from valued suppliers.
Operation and Maintenance
After commissioning of any PV Power plant, operation and main-
tenance plays an important role to reach the highest efficiency
and performance. EMMVEE operation and maintenance team
closely monitor the PV system with periodic inspection of the
plant and continuous monitoring of the electricity output and plant
performance. The highest performance will be guaranteed and
the solar plants will have a stable and growing generation
throughout their lifetime.
9

10
Photovoltaic Systems
Emmvee Photovoltaic Power Pvt. Ltd. is accredited as channel partner under JNNSM subsidy scheme for roof top stand-alone and on-grid PV systems
from size of 1kW upto 100kW
EMMVEE has developed a range of standard PV Systems for
on-grid and off-grid applications. The components are inimitably
chosen to ensure highest qualitative performance of the system
with stringent quality checks. Additional to our standard portfolio,
our team of experienced engineers can develop PV systems
based upon customer specific requirements both for on-grid and
off-grid applications.
We provide solutions for Residential, Agricultural as well as
Commercial sectors like Telecom, Hospitality, Educational and
other Institutional and Industrial segments where secured power
supply is essential. Below mentioned are few types of system
applications.
Roof- TopPV Systems for Residential,Commercial and Industrial applications
PV Street Light Systems
Hybrid (Photovoltaic+ Wind) Systems for Telecom BTS applications
PVSystems for Indoor Lighting applications
Customised PV Systems
Hybrid (Photovoltaic + Wind) Systems
for Telecom
PV Systems
for Street and Garden Lights
Customised PV Systems
Roof-Top PV Systems
for Residential applications
Roof-Top PV Systems
for Industrial applications

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EMMVEE uses quality components, which are procured
from renowned manufacturers. The soldering process is fully
automatic with state-of-the-art technology and machines from
3S and Somont. EMMVEE modules are protected with a 35mm
anodized aluminum frame and a 3.2mm thick front glass with a
special surface coating. The front glass is extremely transparent
and designed in such a way that the modules optimally capture
the sun light.
The solar cables and connector plugs are durable, resistant to
high temperatures and harsh weather conditions.
All modules are IEC 61215 Ed. 2, IEC 61730 and IEC 61701
(Salt mist corrosion test - severity 6) certified and stand out due
to their great quality, high yield, long life and attractive designs.
The modules have a performance tolerance of 2.5 Wp, for
example from 242.5 to 247.5 Wp in the 245 Wp performance
class.
EMMVEE modules are designed for a maximum system
voltage of 1000 VDC
and an operating temperature range
from -40 0
C to +85 0
C. The maximum surface load capacity
is at 5400 Pa. The modules have passed the hail impact test
with ice balls of 24 mm diameter with an impact speed of
83 km/h.
EMMVEE manufactures high-quality OEM (Original Equipment
Manufacturer) solar modules for its customers. This provides
several advantages to the customer. They may determine the
performance class of the modules, the cell size and the cell
supplier. Our in-house glass toughening division EMMVEE TUF
TM - Toughened Glass - also offers the option of selecting different
dimensions and front glasses for the solar module, which means
creating a real unicum.
The high flexibility of our production processes
allows for delivery optimisation based on demands.
To guarantee the high quality and long life cycle of OEM
products, EMMVEE uses only first-class components. Our
suppliers are leading companies in their sectors and have many
years of experience in photovoltaics component manufacturing.
All EMMVEE products are subjected to continuous process
of optimisation and very stringent quality checks in order
to ensure this high level of reliability of the product.
Our product portfolio is structured in two main Photovoltaic
modules categories: Crystal and Diamond, ranging from 240
to 320 Wp. Apart from this standard portfolio, customized
modules can be designed, developed and produced.
For further information about the components used in
our PV modules and our module categories log into
our website www.emmvee.com.
Aluminium frame
Seal
Front glass
EVA sheet
Solar cell
Eva sheet
Back sheet
Structure of a photovoltaic module
EMMVEE manufactures monocrystalline and polycrystalline high-performance photovoltaic modules in the power
range of 240 Wp to 320 Wp in On-grid category and 20 Wp to 150 Wp in off-grid module category. All EMMVEE
components are subjected to a continual process of optimization and stringent quality checks to assure a high level of
quality of products.

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EMMVEE modules are made of monocrystalline or polycrystalline solar cells from the reputed suppliers. The cells consist
of either monocrystalline or polycrystalline silicon. The raw material used is silicon dioxide of either quartzite gravel or
crushed quartz. Since the silicon is impure in its natural state, it must be refined and purified.
The Raw Material
To create monocrystalline silicon, high-purity silicon is melted. It is
then allowed to solidify slowly in contact with a single crystal seed
dipped into the molten silicon. The seed crystal slowly rotated and
grows as it is withdrawn, forming a cylindrical ingot of extremely
pure silicon. From the ingot, silicon wafers are sliced with a square
or psuedo-square shape having a thickness of 180 to 220 m.
Polycrystalline silicon involves a casting process. After the silicon
has been melted, it is directly cast into a mold and allowed to
solidify into an ingot. The cooling rate determines the final size of
crystals in the ingot and the distribution of impurities.
The Production - Wafers to Cell
The manufacturing process is fully automated. After an intensive
quality control check with respect to geometry, size, thickness and
resistivity for cracks and scratches, the wafers undergo a cleaning.
The wafer is then treated and etched with an acid to create a spe-
cial surface texture that improves the light absorption to increase
the conversion efficiency. The silicon wafer is doped with boron,
but a semiconductor homojunction is formed by diffusing phos-
phorus (an n-type dopant) into the top surface of the boron doped
(p-type) Si wafer to make it capable of conducting electricity. The
edges are isolated with a chemical process for avoiding short-cir-
cuits in the p-n junction. The silicon wafers are then provided with
an anti-reflective coating of silicon nitride to increase the amount of
sunlight absorbed and efficiency. Although the coating can
vary in thickness and colour, the blue variant possess the best
optical characteristics: less light is reflected back and more light
is absorbed. The blue variant appears darker when the coating is
thinner. Screen-printed contacts are applied to the front and rear
of the cell, with the front contact pattern specially designed to
allow maximum light exposure with minimum electrical (resistive)
losses in the cell. Back printing makes the back surface field
an optical and electrical mirror. In the firing process, the passiva-
tion of the recombination areas within the cell takes place. The
last step is checking and sorting the cells according to efficiency,
wattage and colour.
The Photovoltaic Effect
By doping the silicon with substances such as phosphorus and
boron, (called n-type and p-type ), entirely different electrical
properties are introduced into the silicon creating semi-conduc-
tive material. In the middle is the p-n junction that produces the
necessary internal electric field, the depletion region. When light
hits the solar cell, the imbalance created between the positive
and negative poles enable the electrons to flow – producing elec-
tricity. A single silicon solar cell produces an open-circuit voltage
of about 0.6 volt.
Module Efficiency
Solar cells made from monocrystalline silicon currently have
efficiency up to 22%, whereas polycrystalline cells reach up to
20%.
Polycrystalline silicon solar cell
Solar Photovoltaic Module Components
Solar Cell
Functioning of a crystalline solar cell
Negative electrode
N-doped silicon
Positive electrode
P-doped silicon
Boundary layer
Monocrystalline silicon solar cell

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Solar cells are extremely delicate when exposed to harsh weather conditions. Hence solar cells used in EMMVEE’s
modules are protected with an embedding foil or encapsulant and sealed in an hermetically sealed laminate. A front
glass specially developed for photovoltaic modules acts as an additional protector.
stands out during high transmission, and resistance against heat
and salt water enhancing durability and lifetime. During process
control, every batch is tested for its laminating quality through a
delamination test and a laminating check.
The Back Sheet
The back-side of the module is usually a compound foil made
of polymer and fluoropolymer films, which demonstrate excellent
mechanical, electrical and chemical properties, durability, and
resistance against moisture, weather conditions and UV radia-
tion. Effectively, the backsheet properties is one of the reasons
for a long service life of the PV module.
The Embedding Foil
The Embedding Material
Between the glass and the back sheet, Solar cells are embedded
with specific materials. Two of the most common materials are
ethylene-vinyl-acetate (EVA) and polyvinyl-butiral (PVB). Thermo-
plastic polyurethane (TPU), ionomer, polyacrylic resin, Teflon and
silicone is also used. The solar cell is first placed between two
layers of EVA foil. The front glass and back sheet are then added
for lamination and sealing during de-airing process by use of
heat up to 150 0
C under vacuum. The EVA melts during this pro-
cess enclosing the solar cell from all sides. The hardening takes
place during the fast-cure process with a lamination time of less
than 8 minutes by laminator from Meyer Burger. The laminator
recipe that attains a high degree of cross-linking is developed
in-house by EMMVEE engineers. The EVA embedding process
EMMVEE PV Modules: Key Features
Front View Back View
Raised Frame Edge
For protection against moss and
dirt deposit
Optimized Soldering Ribbons
For strong contact with solar cell as well as
higher fill factor of PV module
Three Busbar Cell Design
For reduction of internal stress in
the cell as well as current in the cell
connectors for enhanced durability
and life-cycle
Space Interval
2 mm between cells and 3 mm
between strings designed to
increase performance and prevent
microcracks
Serial Number
Premium Quality Back Sheet
For better protection from external
environment
High Performance Rating
With sorting range of 2.5 Wp
High Quality Cable
Of 1 meter length and 4 mm for better
connectivity and reliability
Connectors of IP67 Standard
With integrated locking and sealing for ultimate
safety - MC4 Compatible
Flex-Resistant Hollow Chambered Frame
of 35 mm
For maximum stability and strength
Mounting oblong hole
Frames with Embossed Grounding
Mark and Ready Holes
For permanent recognition and easy installation
Optimally Positioned Drain & Vent
Holes
For protection against frost damage
Junction Box of IP 65/67 Safety Standard
For Halogen free, UV and Ozone resistant

On-Grid Modules
Crystal
- 60 polycrystalline solar cells with 3 bus bars
- Performance classes from 240 to 260 Wp
- Efficiency of up to 16.01%
- Front glass 3.2 mm flat glass
- Dimensions 1,640mm (l) x 990mm (w) x 35mm (h)
- Weight 17.7 kg
Diamond
- 60 monocrystalline solar cells with 3 bus bars
- Weight 17.7 kg
Crystal
- 72 polycrystalline solar cells with 3 bus bars
- Weight 21 kg
Diamond
- 72 monocrystalline solar cells with 3 bus bars
- Weight 21 kg
14

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Off-Grid Module
Standard PV Systems
ES 150 P36
- 36 polycrystalline cells
- Dimensions 1060mm (l) x 986mm (w) x 30mm (h)
- Screw Type Aluminium Frame
- Weight 12 kg
ES 120 P36
- 36 polycrystalline cells
- Dimensions 1320mm (l) x 665mm (w) x 30mm (h)
- Screw Type Aluminium Frame
- Weight 10 kg
Solar Street Lighting System
- CFL Systems 75 Wp, 120 Wp
(11 W SL, 22 W SL & DL)
- LED Systems 37 to 200 Wp
(DC 9 W to DC 50 W)

Module manufacturers provides a 25-year performance warranty. Photovoltaic modules and its components are subjected
to multiple tests to ensure stability and long-life performance.
One of the most important Technical Inspection Associations is
the Technische Überwachungsverein (TÜV). Die TÜV Rheinland
Group is a leading provider of technical services worldwide. All
EMMVEE products are TÜV Rheinland tested and certified.
Certification Standards for Photovoltaic Modules
Crystalline silicon terrestrial photovoltaic (PV) modules are tested
for design qualification and type approval according to standards
IEC 61215. The standards are a combination of measurements
and tests for withstanding manifold environmental stresses.
The objective of the test sequence IEC61215 is to determine the
electrical and thermal characteristics of the module, and to show
that the module is capable of withstanding prolonged exposure
under harsh climate conditions. There are three groups of stress
testing: UV, outdoor and mechanical. UV-test and outdoor
measuring determines the negative impact of sunlight while the
mechanical tests measure the impact of hail, snow and wind loads.
Environmental chambers simulate extreme weather conditions.
First, the module has to resist 1000 hours of humidity heat-tests at
85 0
C and 85% humidity. Then, under the humidity frost-test the
modulehastoenduretensuddendropsintemperaturerangingfrom
+85 0
C to -40 0
C at a humidity level of 85%.
The module will qualify and receive the certificate according to
IEC 61215 if it has passed all tests and does not display any
visual damages or a Reduction in performance levels. The TÜV
test mark is not only the sign of quality for crystalline PV modules,
but also the basis for financial funding or feed-in-tariffs in many
countries.
Less known but equally important is the standard IEC 61730,
which stands for photovoltaic module safety qualification –
Part 1: Requirements for construction and Part 2: Requirements
for testing. The IEC 61730 describes the requirements for
photovoltaic (PV) modules in order to provide safe electrical and
mechanical operation during their expected lifetime. Specific
topics are provided to assess the prevention of electrical shock,
fire hazards, and personal injury due to mechanical and
environmental stresses. Additionally modules have also received
the certification according to IEC 61701 (Resistance against
Saltwater Mist Corrosion).
A market entry in the United Kingdom requires MCS accreditation
(Microgeneration Certification Scheme). The independent scheme
certifies microgeneration products and installers in accordance
with consistent standards through institutions such as British
Board of Agrément on the basis of the IEC standards, as well
as inspection of production facilities and manufacturing process.
Quality Management
Overview of the testing procedures for the certification according to IEC 61215 Ed.2
Source: TUV Rheinland
*Hotspot test was performed as per IEC 61215 ED.3 (Draft) i.e. More Severe when compared to IEC 61215 Ed. 2 Hotspot Test.
Visual Check, Performance testing Under standard test conditions, electrical isolation test
16

17
EMMVEE - Quality Certificate
Module certification according to IEC 61215 Ed. 2 , IEC 61730 safety certification and IEC 61701 resistance against salt mist
corrosion by TÜV Rheinland
Quality Management System: ISO 9001:2008
Environmental Management System: ISO 14001:2004
Occupational Health and Safety Management System: OHSAS 18001:2007
EMMVEE’s Quality Control
EMMVEE’s Manufacturing Facility and Business Process is
certified with Quality Management System ISO 9001:2008,
Environmental Management System ISO 14001:2004, Oc-
cupational Health and Safety Management System OHSAS
18001:2007 certified by DNV.
Incoming Goods Control
Stringent incoming goods inspection of all raw materials used
ensure that all components fulfil EMMVEE’s quality require-
ments. First, the raw materials are registered using a detailed
technical documentation process and then stored in accordance
with the manufacturers’ storage and handling guides. EMMVEE
does not use materials which do not fulfil its quality standards or
which have exceeded their shelf life.
Methods of Production Quality Management
In order to ensure highest production quality, at the following
production process parameters are looked:
The soldering temperature of the cell connectors is constant
with a maximum deviation of 2 0
C.
Camera-detector systems to locate even the smallest fractures,
damages and misalignment of busbars.
Every batch is examined for the quality of its laminate using
delamination trials and laminate control checks.
The tightness of the soldering joints between the cell and cell
connector is inspected 3 times a day and checked after every
change in production process parameters.
To ensure accurate performance measuring under standard
test conditions (flasher-test) we use calibrated and TÜV certified
reference modules.
Final Inspections
Before a module is packed, it undergoes a final inspection.
The final electrical inspection includes testing for high-voltage
grounding, performance measuring under standard test conditions
(flasher-test) and the determination of the dark I-V curve. A visual
inspector inspects serial number and product label, examines the
module surface for possible bubbles, bumps or finger prints and
checks all clamps and cables inside the junction box.
Product and Performance Warranty
Our modules come with a 5 year product warranty (As per
EMMVEE warranty terms). We warranty yield of minimum 90%
of the output power identified within the first 10 years and of
minimum 80% within the first 25 years.

Pull test for the cell connectors during quality control at EMMVEE production facility
in Bengaluru, India
PASAN-flash generator-sun simulator of performance class AAA for
measuring the output under standard test conditions at EMMVEE
production facility in Bengaluru, India
Module breakage test at the testing
laboratory
TÜV Rheinland in Cologne (Source:
TÜV Rheinland)
18
Official MCS accreditation logo
for photovoltaic modules
OHSAS 18001ISO 9001 ISO 14001

19
This section provides an overview of the various applications of EMMVEE modules. Working on a PV system requires
specialized knowledge and should only be attempted by qualified professionals. An up-to-date version of the installation
manual can be found at www.emmvee.com. Failure to follow these instructions may result in bodily injury or damage to
property.
Site Selection
Photovoltaic modules can be roof mounted on a flat or
sloping roof or ground mounted free-standing. Please ensure that
the roof construction is suitable for a PV system installation. Avoid
obstructions such as trees, buildings and antennas or soiling
and bird droppings since even small and partial shading of the
modules will reduce the system output. The module should be
facing true south in northern latitudes and true north in southern
latitudes for best power production. The ideal inclination for
Central Europe is at 300 mm. The ideal inclination is steeper
for installations in Northern Europe and flatter for installations in
Southern Europe. The minimum inclination should be 150 mm to
result in a higher flow speed of rainwater and flush off dirt and
dust particles.
Mechanical Installation
Modules can be mounted in either a horizontal or vertical
orientation. When installing vertically, the module clamp of the
junction box has to point downward. The support module
mounting structure, clamps, nuts and bolts must comply with all
customary norms. EMMVEE recommends leaving a space of 20
mm between two modules considering linear thermal expansion
of the module frames. Provide adequate ventilation under a
module for cooling (100 mm minimum air space between
module and mounting surface) and to allow any condensation
or moisture to dissipate. The roof installation of solar modules
may affect the fire proofing of the house construction.
Install the fireman’s switch in the immediate vicinity of the
PV module in the DC current line. EMMVEE solar modules can
be mounted on the rails using pre-drilled mounting holes which
are located at the back of the module frame or by using module
clamps. Refer our manual for further information on mounting
and installation. Site-specific loads such as wind and snow need
to be taken into consideration to ensure that the weight loading
is not exceeded.
Electrical Installation
Several modules can be connected in series or in parallel to
form a PV array with a specific current and voltage. Your inverter
will determine if modules are to be connected in series or parallel.
If modules are connected in series, the total voltage is equal to
the sum of individual voltages. If modules are connected parallel,
the total current is equal to the sum of individual currents. Ensure
that the open circuit voltage multiplied by the number of modules
in series is not higher than the maximum system voltage at the
lowest temperature. The modules connected in series should have
the same amperage and if they are to be connected in parallel
they should have the same voltage. EMMVEE modules delivered
are sorted in a range of 2.5 Wp, e.g. 242.5 to 247.5 Wp
in the performance class 245 Wp. Solar modules connected in
series which do not have identical properties or which experience
different conditions from one another will cause mismatch losses.
It will lower the output of the entire PV module down to 1%. To
reduce mismatch losses to approx. 0.2% it is crucial to sort all
modules according to similar MPP amperage using the results
from the flash test.
Maintenance and Cleaning
Solar power plants, require less maintenance compared to the
other power plants. But they have to be monitored and
inspected for performance, damages and cleaning. The inverter
functioning should be checked on a daily basis to guarantee
flawless performance. We deem it advisable to record the
PV systems’ output in a log. In view of the tilt angle of the PV
modules ( 15 ), normal rainfall is sufficient to keep the module
glass surface clean. Snow usually slides of the module. Cleaning
of the surface is recommended once at the end of the winter
season and trequent in the summer season. Do not use high
pressure chemicals to clean the module. Under no circumstances
should dirt be scraped or rubbed off the modules, as this can
cause micro scratches on the surface of the modules and reduce
the transparency of the module glass. In order to ensure proper
operation, please check all wiring connections, condition of the
insulation and mechanical connections once every year and
report any problems immediately. All cleaning and maintenance
operations are to be done by a trained personnel.
General Dangers and Safety Advice
Please pay close attention to the characteristics of the
photovoltaic system:
PV modules generate DC electrical energy when exposed to
sunlight or other light sources and cannot be turned off.
Tips and Tricks for Mounting and Maintenance
Note: Please leave a space between the modules of 150 mm every 3 to 5 meters to allow access of fire fighting personnel in the event of a building fire.

Photovoltaic systems generate direct-current electrical energy
with high voltage. When disconnecting wires connected to
a photovoltaic module that is exposed to sunlight, e.g.
clamps, plugs or when measuring electric currents with
an ampere meter, a potentially lethal electrical arc can
occur which will not self extinguish. Electric shock through
arcing when in contact with electrically active parts
of the module can be fatal. Please read the instructions in our
manual carefully.
Quality Advice
Only use solar modules that are certified through renowned
certification bodies like TÜV, VDE or UL to guarantee the solar
system will last for 20 years and beyond. Thus, it is crucial to
process components of high quality from renowned manufacturers.
Every module is invariably as strong as its weakest component.
Always seek professional advice and leave it up to an expert to
install a solar system.
At EMMVEE, environmental protection is an integral part of the IMS (Integrated Management System) policy. Hence, we
support the implementation of the REACH-regulation and are equipped to adapt our products to the RoHS-conformity in
accordance with the RoHS-guideline.
The REACH-regulation requests manufacturers and importers
of chemical substances to register the substances they use at
the European Chemicals Agency. According to chemical
regulations photovoltaic modules fall into the product category.
Product substances must be registered, if these substances
are in accordance with the regulation, released while using
the product. This is not the case for crystalline photovoltaic
modules. Therefore, the substances in the modules do not have
to be registered.
The RoHS-guideline stipulates that the use of lead, mercury,
cadmium, hexavalent chrome, polybrominated biphenyl (PBB)
and polybrominated diphenylether (PBDE) in certain electrical
and electronic products is prohibited. However, EMMVEE is
trying to adapt all products to the RoHS-conformity and already
almost exclusively uses components that correspond to the RoHS-
guideline. Notably, the EMMVEE photovoltaic modules do not
have any cadmium content.
A large proportion of the components used in photovoltaic
modules is recyclable. A conventional silicon module,
corresponding to its weight consist of 71% of glass, 11% of
aluminium and 12% of EVA foil. The silicon solar cells comprise a
receptacle account of 5% to 1% of the total weight. Notably the
glass and aluminium frame have a high yield and can almost be
100% recyclable. The wafer material of the silicon solar cells can
be retrieved as a raw material and can be reused to produce PV
modules. In addition small amounts of copper are accrued.
Environmental Compatibility, Waste Disposal and Recycling
Example of installation which must be avoided:
Performance loss due to shading in the morning
hours and contamination of bird droppings.
20

21
EMMVEE Solar Systems Pvt. Ltd., an ISO 9001:2008 &
14001:2004 and 18001:2008 certified company was
established in the year 1992 in Bengaluru, India and is a
manufacturer of solar thermal products such as solar water heaters
(widely known as Solarizer), solar dryers and solar pool heating
systems.
EMMVEE Solar Systems Pvt. Ltd., has grown to be the
largest manufacturer of Solar Water Heating Systems in India
and probably in Asia. EMMVEE’s 1,20,000 sq. ft. state-of-the-art
production is in operation since June 2009 on a 21 acre plot at
Dabaspet, near Bengaluru.
Flat Plate Collector
EMMVEE has a semi-automated production centre for
manufacturing solar collectors. An online quality monitoring
process at each stage of the production ensures the highest
quality of the collector.
State-of-the-art Production
EMMVEE is continuously working on introducing new technologies in both manufacturing process and management
practices. EMMVEE is the pioneer, specialist and the only manufacturer of glass enamel coated tanks of sizes ranging
from 100 to 3000 liters for solar water heating systems in India. The additional layer of glass enamel on the steel layer
not only increases the strength and the lifetime of the tank but also ensures resistivity against corrosion and guarantees a
highly hygienic water quality for a long time.
Tank
The in-house manufacturing of the tanks is done using
sophisticated machineries like auto controlled hydraulic press,
auto linear and circumferential welding machineries along with
online quality procedures. Each tank is subjected to leak test and
pressure test before it proceeds to the enamel coating section.
Enamel coating
The tanks which pass the quality tests are then subjected to
enamel coating. Here, the tank’s inner surface is chemically
washed and rinsed with water through a 7 stage process. The
tank is then dried using hot air. Once the inside of the tank
thoroughly dries, enamel is flooded inside the tank and it is
rotated to achieve uniform coating thickness. A thin layer of
enamel is also coated on the outer surface of the tank to prevent
corrosion. On completion of the flooding process, tank is again
dried by using hot air and fired at 870 0
C to ensure proper
bonding of the enamel with base material.
These tanks are further subjected to leak and pressure test after
fixing the gasket, backup heater and anode.
Insulation
Enamel coated tanks are insulated with a high density insulation
material to prevent heat loss. Uniform thickness of the insulation
material is maintained by using auto controlled machines and
fixtures.
Final quality inspection and documentation
Before packing, these insulated tanks are subjected to a final
quality inspection.

Enamel Coating Plant
EMMVEE has established an in-house production facility to manufacture tray collectors which meets the international
standards. This type of flat plate collector is made with single body structure with a unique glass locking mechanism.
The advantages of this type of collector over normal collector are higher efficiency and an elegant look.
Working Principle of Solar Hot Water Systems
Basic Working Principle of Solar Water Heating system
As shown in the diagram, by gravity flow, water from the cold water tank enters the solar tank at point A and fills it up. The cold
water from the solar tank in turn flows via point B in the bottom header pipe of the absorber and into the copper tubes at point C, until
all the absorber tubes and the header at the top of the absorber are full.
When the sun rises to a certain level, its energy, which falls on the absorber fins and tubes, begins heating the water contained therein.
The heated water being lighter than the cold water rises and via the top header pipe (point D) of the absorber, flows into the top of the
solar tank through point E. The more cold water from the solar flows into the absorber tubes, gets heated and rises to the top, and so
on. This process is called as ‘Thermosyphon Process’. This process continues until the temperature of the water in the solar tank and
the absorber equalizes. Now the solar tank is full of hot water.
Further when the hot water is drawn from the solar tank
outlet (point F) to the utilities point, cold water enters
into the solar tank and takes its place at point A, thus
lowering the overall temperature of the hot temperature
between the water in the solar tank and the absorber
tubes, the thermosyphon process starts once again, as
explained earlier.
The diagram shows the back up electrical heater (to be
used during cloudy days) and the sacrificial anode rod
in the solar tank prevents against galvanic corrosion
(but not scale formation), if the hardness of the water
quality is less than 140 ppm, thereby ensuring effective
working for longer time.
(Note:- Average temperature is 60 0
C at the end of 7-8
hours of bright sunshine.)
Absorber assembly and laser welding
22

23
Pressurised System
The basic working principle of solar water heating remains the
same. A pressure pump is used to pump cold water from the
source into the Solar tank.
This type of water heating system is used when
The level of the overhead tank (The original cold water
source) is at low level.
High pressure hot water flow is required for various uses
like shower panels, jet shower, telephone shower.
The number of hot water points are more than normal.
System for Multi-Storied Buildings
The solar water heating system installed for multi-storied buildings,
process industries, apartment complexes, hospitals, hotels works
on the same basic principle, but is specifically designed to meet
rigorous requirement of such conditions.
Such installations have multiple hot water outlets at different levels
of the building. It is important that all outlets should dispense hot
water as soon as the taps are opened, and also minimize the
wastage of cold water.
To achieve this, a special device called the Electronic Control
Unit is installed within the hot water plumbing lines. During the
process of heating, if the temperature of the water goes below
30 0
C, the Electronic Control Unit (auto temperature controller)
switches on the pump immediately. The pump then pumps out
the cold water accumulated within the tube and fins, thereby
allowing immediate flow of water.
The advantages of this system are
Cold water wastage is not there.
Hot water is readily available on the turn of the tap.
Electricity is saved because wastage of cold water is
minimized, thus saving precious resources.
Heat Exchanger System
This type of Solar water heating system is used when the original
cold water (from the source) contains chemical contents and is
therefore hard water.
Thermal fluid (Distilled water) is filled through make-up tank to
the outer tank shell. In turn, this fluid gets circulated through the
solar fins and tubes and goes back into the top of the outer tank.
This fluid acts as a heat transfer media and prevents clogging of
the copper tubes due to chemical contents in the original water
source.
The inner tank gets filled with cold water from the original cold
water source. Since the inner tank is immersed within the outer
tank, the heat gets transferred to the inner tank through the
conducted and convection method and the water in the inner
tank gets heated up and available for hot water utility.
Forced Circulation System
If the capacity of hot water requirement is more than
4000 upto 100000 LPD, the water requires additional
force to push the hot water collected in the solar collector.
The DTC (Differential Temperature Controller) senses the inlet and
outlet temperature of the water. If the thermal difference is more
than 10 0
C, the DTC switches on the pump and the hot water in
the collector is forced to flow into the storage tank.
This system requires continuous supply of electricity for the motor
to operate.
Fixed Circulation System
This system is used in process industries where in the hot
water requirement is between 4000-100000 LPD at a fixed
hot water temperature or when the collectors and the tanks are
placed at different places.
In this system, cold water flows into the collectors and waits till it
gets heated up to the set temperature.
Types of Solar Hot Water Systems
Pressurised System for Multi-Storied Buildings
Collectors
SWH Tank
Cold Water
Tank
Auto Tempreature
Control
Pump
Sensor
Forced Circulation System
Collectors
Differential Temperature
Controller (I- O = 10 0
C)
Hot Water
Taps
SWH Tank
Cold Water Tank
Pump
Sensor 1
Sensor 2

Overview - Which Solarizer is right for me?
Over 4,00,000 domestic and 50,000 non domestic satisfied customers from all over India appreciate the quality of our
solar water heaters - which delivers optimum amount of hot water, with different capacities.
Solarizer Portfolio
EMMVEE manufactures solar hot water systems under the brand name Solarizer. Our current product portfolio includes:
Guaranteed long life system
Pressurized for all modern
bathing systems
Easy installation and service
Experience hot water bathing
whenever you feel like it
Highest safety and hygiene
standards
Toughest tank prevents corrosion
No blockages from hard water
System & Performance Guarantee
Complete peace of mind
Keeps water Hygienic
Magnesium alloy sacrificial
anode
Unique heat exchanger design
Rugged and sturdy design
Universal mounting structure
Highly efficient absorbers
Experience hot water bathing at
an affordable cost
Save money on your electricity
bills
Performance Warranty
Quality tank and solar collector
2
24
Do you have
hard water?
Will you use
pressure pump?
Do you want most
advanced tank?
Will you use
pressure pump?
Yes
Yes
Yes
Yes
NoNo
No
No
(PR)
(AV)
(AV)

25
Glass Enamel Tank
EMMVEE is the pioneer and the only manufacturer of glass enamel
coated tanks of sizes from 100 to 3000 liters for solar water heating
systems in India.
The production facility for glass enamel coating tanks is fully automated
and first of its kind in India. With highly skilled and trained manpower
and many years of know-how in process of different capacities and size of
tanks, our glass enamel tank production reaches the best performance and
efficiency. Our fully automated manufacturing process is using equipments
from Germany.
As shown in the cross-section of the tank, an additional layer of glass
enamel on the steel layer increases the overall performance of the system
Benefits of glass enamel tank
Hygienic water
Highly resistive to corrosion in water
Resistive to abrasion which makes it mechanically strong
Highly resistive to impact of chemicals making the water safer
Cross-section of Glass Enamel Tank
3000 LPD Tank
3000 LPD Tank
The 3000 LPD Solar water heating tank is used for Industrial
applications in large scale usage. Due to the tank’s
anti-corrosive nature, the tank strength increases along with the
hygiene of the water which is very evident for Industrial usage.
System Enamel coated big boiler
Capacity 3000 LPD
Material Low carbon steel - 6mm thickness
Configuration Vertical with manhole
Inside surface coating Glass enamel
Tank diameter 1600 mm
Height 1955 mm
Glass Enamel Tank with Jacket Type Heat Exchanger
This type of Solar water heating system is used when the original cold
water (from the source) contains chemical contents, hence called hard
water. To safe guard collector against scale formation and to avoid
choking of the system, this type of system is beneficial.
(refer page 12 for complete operating principle)
Jacketed Type - Heat Exchanger SystemCollectors
Solarizer Outer Tank
Solarizer Inner Tank
Cold Water Tank Top Header
Copper Fin & Tubes
Bottom Header
Hot Water Outlet
Cold Water Inlet
Air Vent
Distilled
Water Tank
Jacketed Type - Heat Exchanger System

EMMVEE Toughening facility is equipped with TAMGLASS technology, a market leader in safety glass machines from
Finland.EMMVEEToughenedGlassiscateringthesolarthermalandphotovoltaicin-house productionaswellas to sectors like
construction, architecture, furniture and engineering industry in India.
EMMVEE Toughened Glass
Schneider Electric, Bengaluru
References
Sun TV Network, Bengaluru
26

27
References - Project Development & EPC
Reference 1
Location Solar Park, Bronkow, Germany
Commissioning 2012
Performance 11.4 MWp
Module type EMMVEE Diamond (225-250 Wp)
Installer Emmvee Photovoltaics GmbH
Reference 2
Customer Emmvee Energy - 1
Location Hindupur, Andhra Pradesh, India
Commissioning 2013
Installed Capacity 10.9 MW
Module type EMMVEE Diamond (240-250Wp)
Installer Emmvee Photovoltaic Power Private Limited
Reference 3
Customer Nidhi Solar Park
Location Hindupur, Andhra Pradesh, India
Commissioning 2013
Installed Capacity 5 MWp
Module type EMMVEE Crystal (250wp)
Reference 4
Customer MLR, Bambino Foods
Location Hyderabad
Commissioning 2013
Module type EMMVEE Diamond (250 Wp)

28
Reference 5
Customer Cochin International Airport Ltd
Location Cochin, Kerala
Commissioning 2013
Installed Capacity 1 MW
Module type EMMVEE Diamond (250 Wp)
Installer Emmvee Photovoltaics Power Private Limited
Reference 7
Customer Emmvee Energy Private Limited
Location Regode, Telangana
Commissioning 2015
Installed Capacity 11 MW
Module type EMMVEE Crystal (295-310 Wp)
Reference 6
Customer Emmvee Energy Park - 1
Location Beechiganipalle, Andhra Pradesh
Commissioning 2014
Installed Capacity 10.5 MWp
Module type EMMVEE Crystal (250-260 Wp)
Reference 8
Location Jogipet, Telangana
Commissioning 2015
Module Type EMMVEE Crystal (295-310 Wp)
Reference 9
Location Manepalli, Anantapur, Andhra Pradesh
Commissioning 2015

29
Reference 3
Customer Mayura Steels Pvt. Ltd.
Location Kolhapur, Maharashtra
Commissioning 2012
Installed Capacity 100 kWp
Module Type EMMVEE Crystal (240 Wp)
Reference 4
Customer Directorate of Hospital & Medical Education
Location Borgang, Mizoram
Commissioning 2013
Reference 1
Location Doberschutz, Sachsen, Germany
Commissioning 2011
Module Type EMMVEE Diamond (190-230 Wp)
Roof-top Projects
Reference 2
Customer DNRE
Location Kohima, Nagaland
Commissioning 2012

Reference 5
Customer NBCC
Location Gandhidham, Gujarat
Commissioning 2013
Installed Capacity
200 kWp System
24W LED Street Light System (1000 nos)
Module Type EMMVEE Crystal (100 Wp and 280 Wp)
Reference 6
Customer Vyline Glass Works Limited
Location Bharuch, Gujarat
Commissioning 2014
Reference 7
Customer High Court
Location Bengaluru, Karnataka
Commissioning 2014
Reference 8
Customer BESCOM
Location Bengaluru, Karnataka
Commissioning 2014
30

31
Reference 1
Location Etoges, Champagne 51 (France)
Commissioning 2010
Installed Capacity 117.03 kWp
Module Type EMMVEE Diamond (235 Wp)
Installer Capthelios
Reference 2
Customer Ratshausen,Wuerttemberg (Germany)
Commissioning 2010
Installed Capacity 456.56 kWp
Module Type EMMVEE Diamond (230-235 Wp)
Installer Heinrich Trick Baukonzept GmbH
Reference 3
Customer C & S Electric
Location Nandha Village, Bhiwani, Haryana, India
Commissioning 2011
Installed Capcity 1MWp
Installer C & S Electric
Reference 4
Location Wolfshain, Germany
Commissioning 2012
Module Type EMMVEE Diamond (230 Wp)
PV Reference Projects brochure can be downloaded from our website
www.emmveepv.com in References section

32
Solar Water Heating Systems
Solarizer Elite - Series
Elite - Hybrid
Elite - 200, 300 & Anywhere
Slope Roof Installation

33
Our Projects
Domestic 200 LPD, Spring & Ultra in Villas

SWH Reference Projects brochure can be downloaded from our website
www.emmveesolar.com in References section
Comercial & Institutions
Projects
34
2500 LPD
1000 LPD Thermo Syphon
2500 LPD 2000 LPD

Contacts
Corporate Office and Manufacturing Plant
#13/1, International Airport Road
Bettahalasur Post
Bengaluru – 562 157, India
Phone: +91 80 4323 3511
info@emmvee.in
D.V. Manjunatha
Managing Director
Phone: +91 80 4323 3536
manjunatha.v@emmvee.in
Members of the Executive Board
Sales Contacts
Srinath T.
Director - Technical & Marketing
Phone: + 91 80 4323 3344
srinath.t@emmvee.in
Emmvee Photovoltaic Power Private Limited
Emmvee Solar Systems Private Limited
Emmvee Photovoltaic Power Private Limited Emmvee Solar Systems Private Limited
For all other enquiries:
info@emmvee.in
Sales Contacts
Manjunath Reddy
Deputy General Manager
Phone: +91 80 4323 3322
manjunatha.s@emmvee.in
Sukumar P.S
General Manager - Sales & Marketing
Phone: +91 80 4323 3529
sukumarps@emmvee.in
Corporate Office
#13/1, International Airpo t Road
Bettahalasur Post
Phone: +91 80 4323 3333
info@emmvee.in
Manufacturing Plant
Survey No. 66 - 70/3, Pemmanahalli Village
Sompura Hobli, Dobaspet, Nelamangala
Bengaluru - 562 111, India
Phone: +91 80 4323 3411
info@emmvee.in
www.emmvee.com
Vijaya Kumar C R
General Manager - Sales
Phone: +91 80 4323 3324
vijay.cr@emmvee.in
Chalamaiah Chetty K V
Chief Operating Officer
Phone: +91 80 4323 3445
kvcchetty@emmvee.in
r
Ramesh Udupa N
Senior Manager - Sales
Phone: +91 80 4323 3537
rameshudupa.n@emmvee.in
Raghunand.M A
DGM - Purchase
Phone: +91 80 4323 3540
raghunand.ma@emmvee.in

Emmvee Photovoltaic Power Private Limited
Corporate Ofﬁce
Bettahalasur Post
Phone: +91 80 4323 3511
info@emmvee.in
Emmvee Solar Systems Private Limited
Corporate Ofﬁce
Bettahalasur Post
Phone: +91 80 4323 3511
info@emmvee.in
www.emmvee.com

Corporate brochure

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