VEMC aspires and strives to be the most reliable and endearing electromechanical solution provider.

1. VEMC
SOLAR
SOLUTIONS
VIJAY ENGINEERING AND MACHINERY CO.
skylineadvt.com
Head Office:
Address: Shariff House, 74, Shahid Bhagat Singh Road,
Fort, Mumbai – 400023.
Tel : +91-22- 4311 7171
Fax: 4311 7126
Finance/ Marketing:
Address: 9, Bombay Mutual Annexe Building,
Cawasji Patel Street, Fort, Mumbai -400001.
Tel : +91-22- 4343 6655
Branch Office:
Address: Great Eastern Chambers, 501/A, 5th floor,
Plot No.28, Sector – 11, CBD- Belapur, Navi Mumbai – 400614.
Tel : +91-22- 4111 1300
Government & Spares:
Address: 186-Bora Bazar Street, Fort, Mumbai-400 001.
Tel : +91-22-49255602
Visit us at www.vemc.co.in | Post your enquiries at marketing@vemc.co.in
For Service related Enquiries email us on service@vemc.co.in
A STEP TOWARDS A GREENER FUTURE

2. Why Solar
Photovoltaic
technology?
Solar energy is energy supplied by nature
– it is thus free and abundant! Using PV
technology, the Solar PV modules provide
clean and green energy. Electricity
generation with Solar PV modules, does
not produce harmful greenhouse gas
emissions thus Solar PV is environmental
friendly.
VEMC works to provide end to end EPC service to valued clients.
VEMC brings decades of experience working with various industries in Oil, Pharmaceuticals, Building &
Construction, Water Supply & now solar solutions. When approached with any projects, the company
undertakes a 6 step process to ensure flawless execution. After an initial site survey, feasibility study,
procurement of required equipment and installation, the company also undertakes commissioning of
projects to ensure that the set up operates efficiently.
PRE-FEASIBILITY
STUDY
FEASIBILITY
STUDY
DETAILED
DESIGN
SUPPLY AND
CONSTRUCTION
COMMISSIONING
1
3
5
6
2
4
SITE IDENTIFICATION
Vijay Engineering and Machinery Company (VEMC), ISO 9001:2015 certified
company, pioneer in the field of electromechanical engineering products, allied
equipment’s, and services. VEMC is a 69 year young organization with ISO 9001:2015
certification & CRISIL MSE-1 rated.
Consistency and strategic expansion has enabled our Company to become an industry
vanguard of excellence in product quality, service and leadership. Being a mechanical
and electrical Capital good supplier and a solution provider of multiple MNC brands
for more than 60 years has helped us to have a progressive outlook and establish
strong foundations which has helped us to be placed amongst the best players in the
field.
We are empanelled channel partners with Ministry of New and Renewable Energy,
Government of India for Solar PV Roof top – Small Power plant System integrators &
installation partners. Depending on requirement and feasibility, VEMC offers
Off grid, On grid & Hybrid solar systems solutions as well.
VEMC offers end to end solutions including choosing the right kind of set up, like
rooftops, ground mounted solutions and solar tracking to choosing the right kind of
financial model like the Capex or Opex models.
ABOUT US VEMC SOLAR PV PROJECTS
- PHILOSOPHY

3. VEMC Solar Solutions
Grid-tied system
This system is synchronized with the utility supply mains at the distribution box. It uses an inverter
which has special provisions to match the grid supply using sensors and reduce the total power
consumption from grid.
Solar Panels
Inverter
Utility Meter
Utility Grid
Home
Solar Panels
Charge
controller
Inverter
Battery bank
House
Optional generator
Solar Panels
charge
controller
Battery Bank
house
meter
inverter
utility
grid
Off-Grid system
This system is independent of the power grid. It has a battery bank to store excess electrical
energy generated during day time and utilize this energy during night time when solar energy is
not available. This is useful for locations situated far from electricity grid lines like remote tribal
villages, Defense posts, forest checkpoints etc.
Hybrid System
This is a combination of both the on-grid and off-grid system, it is a grid connected solar
photovoltaic system with a provision for battery backup to store energy. This is useful for
electricity consumers having very high tariff rate, like commercial parks and malls.
Optimized grid tied system
This is one of a kind solar system focusing mainly on the module optimization by using individual
module optimizers and special solar inverters. It is based on global ground breaking technology
for improving solar plant performance.
Power Optimizer Inverter Monitoring Portal

4. Net Metering
Net metering is a billing mechanism that credits solar energy system owners for the electricity they
add to the grid. It allows Utility power consumers who generate some or all of their own electricity
to use at anytime, instead of when it is generated allowing the consumers to give extra solar power
in to the grid when their demands for power are met and recover the grid injected energy whenever
their generation from solar system is low. This system enables the consumer to achieve substantial
reduction in the electricity bill (The bill could be as low as zero in some cases).
Solar
production
Energy
needs
Excess energy
Utility grid
B
A
ELECTRIC BILL
B
= As low As $0
plus connection fees
- A
Net Metering
VEMC Solar Financial Solutions
Client pays for the
EPC Cost
Client will own
the system
Sign a long term
O & M Contract
(optional)
Carbon footprint reduction
& tax saving
VEMC undertakes
the EPC activity
In CAPEX
model
VEMC will Operate and Maintain the Plant
for 25 years and its ownership will be
with the Investor
Project
Finance
Installation 25 years of operations
and management
CAPEX Model
In this finance model, the client or any entity approaches VEMC for installation of a Solar PV system
in the premises of the client. Once the plant is commissioned, its ownership transfers to the client and
the VEMC’s scope ends.
The advantages of this model include:
1. The client has complete ownership over the plant and its operation.
2. Client can reduce his electricity bills by sizable margins depending on the capacity of
Solar PV plant.
3. Client can avail CFA (Central Finance assistance) Subsidies and tax benefits from
Government bodies.
4. Client can complete his CSR and Renewable energy use and purchase obligations.
5. Client becomes partially immune to increasing Utility electricity prices.
OPEX Model
In this financial model, the complete project cost is financed by the investor and executed by
VEMC and the power generated is sold to client. The Client enters into a long-term contract
(typically referred to as the PPA) to purchase 100% of the Electricity generated by the system.
The advantages of this model include:
1 Clients consumes Electricity at a discounted price
2 No investment from Client side.
3 VEMC will manage the permits, construction, maintenance and operations of the system.
4 Client can meet his Corporate Social Responsibility (CSR) at no additional cost.

5. Inverters
Solar Power inverter is the heart of any Solar Power plant. Solar power inverters have
special functions adapted for use with photovoltaic arrays other than DC to AC power
conversion, like maximum power point tracking, System monitoring and anti-islanding
protection.
VEMC provides below Solar inverters types:
Stand-alone inverters
Stand alone inverters are used in isolated systems where the inverter draws its DC energy
from batteries charged by photovoltaic arrays.
Grid-tie inverters
Grid tie inverters are designed to operate in Synchronism with the Utility grid. They are
designed to shut down automatically upon loss of utility supply, for safety reasons. Solar grid
tie inverters are used for net metering purposes.
Hybrid inverters
Hybrid inverters are designed to draw energy from a battery, manage the battery charge via
an onboard charger, and export excess energy to the utility grid. This is a combination of
both standalone and Grid-tie inverters and can be used for net metering purposes.
The inverter comparison is given as follows,
Inverter/
Converter
Efficiency Remarks
String Inverters
Power
up to 100 kWp up to 98% • Higher reliability
• Easy to replace
Central Inverters More than
100 kWp
up to 98.5% • - 6 cents /Wp
• Marginal lower cost
• Often sold only together with service contract
Micro-Inverters Module Power
Range
90%-95% • - 33 cents /Wp
• Ease-of-replacement concerns
• Marginally Higher energy outputs
DC/DC Converters
(Power Optimizer)
Module Power
Range
up to 98.8% • Ease-of-replacement concerns
• Output is DC with optimized current
• Still a DC / AC inverter is needed
• 2 GWp installed in 2016
Cables
Solar cable is the interconnection cable used in photovoltaic power generation. Solar cables are
designed to be UV resistant and weather resistant. They can be used within a large temperature
range and are generally laid outside.
POLY - CRYSTALLINE MONO - CRYSTALLINE
Higher price
• production method:
molten silicon is poured into a cast
PERFORMANCE
AT HIGH
TEMPERATURES
Good
• Blue cells absorb less heat
• Efficiency Is not reduced as much
at high temperatures
Reduced efficiency
• Dark cells absorb heat
• Causes efficiency reduction at warmer
temperatures
APPEARANCE Non uniform
• The blue shade of the cells doesn't allow
an all- black system
All black
• Both cells and frame can be black. Allows
a uniform look of the solar System
BEST SUITABLE
FOR
Most cases
• Lower price allows a faster return on
investment
• Panel's peak efficiency is usually not the
primary consideration for solar
system owners
Limited space
• In cases of limited space peak efficiency
can be Important
Lower efficiency
• Average cell efficiency: 18%
Higher efficiency
• Average cell efficiency: 19%
EFFICIENCY
PRICE Lower price
• production method:
molten silicon is poured into a cast
Components
PV Modules
VEMC offers Monocrystalline PV modules & Polycrystalline PV modules.
Monocrystalline PV modules
Monocrystalline solar panels use single-crystal silicon. Because the cell is composed of a single crystal,
the electrons that generate a flow of electricity have more room to move. As a result, monocrystalline
panels are more efficient than their polycrystalline counterparts.
Polycrystalline PV modules
Polycrystalline solar panels are also made from silicon. However, instead of using a single crystal of
silicon, manufacturers melt many fragments of silicon together to form the wafers for the panel.. Because
there are many crystals in each cell, there is to less freedom for the electrons to move. As a result,
polycrystalline solar panels have lower efficiency ratings than monocrystalline panels.
On an average the Polycrystalline Modules give slightly better ROI when compared to Monocrystalline
PV modules due to their comparatively lower costs and similar electricity generation.

6. Module mounting system
Solar mounting structures are the backbone of any Solar PV plant installation. They provide the
necessary support to the Solar Modules against environmental attacks like rains, cyclones and
dust storms. Mounting can be done on a variety of surfaces like RCC roofs, Galvenium sheets,
Asbestos sheets and ground.
Monitoring system
The solar PV systems provided by VEMC have an integral Monitoring System. The system
enables diagnostic and monitoring of all components. The monitoring can be done remotely on
Smartphone’s or any other computer systems.
User
Web Monitoring
Server
UC-7110
Solar Pannels
Ethernet
Serial
Router
Control
Box
Meters
Rs.485
WAN
Solar Generators
Mobile Solar Generators are compact Solar PV generators which are suitable for backup requirement of
residential and small commercial consumption. It enables instant power supply with easy installation.
Collapsible structure assembly and portable design makes it easy to transport and install at any given
location within a short period of time.
Benefit
• Free Power Generation
• Environment Friendly
• 24x7 Reliable Power
• Plug & Play Convenience
• Option of Fixed & Mobile System
• Modular & Scalable
Application
• Farm Houses, Bungalows
• Small Commercial Establishments
• Remote or Construction Work-sites
• Emergency back-up Power for: Hospitals,
Schools, Nursing homes & Hotels etc.
• Off Grid Power with Battery bank
Solar LED lightings
These are compact capsular system with LED bulb, solar module, battery and charge controller packed
inside a single unit.
Application:
Courtyards, Garden, Park, Street, Roadway, Pathway, Parking lot, Private road, Public square,
Sidewalks, Plaza, Campus, Airfield, Wildlife area, Military base