For individual houses, bungalows, societies, industries, commercial spaces

1. Solar PV Systems for Indian Consumers
Benefits of Rooftop
Solar & Net-Metering

2. Introducing Solar
Energy
Benefits Of Net-
Metering
Our Services &
Experience
Agenda

3.  Solar energy can be categorized according to the type of energy it is converted into i.e. solar
thermal, photovoltaic solar power and concentrating solar power
 PV systems are simple and reliable. They do not have moving parts and require little
maintenance
 A 1kilowatt peak solar system generates around 1600 kilowatt hours per year in a sunny
climate and about 750 kilowatt hours per year in a cloudy climate
 A typical silicon cell solar module will have a life in excess of 20 years
 As of today there is around 7500MW (7.5GW) of solar installation in India; from meagre
18MW in 2010. National Government plans to install around 100GW of Solar by 2020
 India receives one of the highest solar radiation in the world
Introduction

4. M.W Level –
Utility Scale / I.P.P
K.W Level –
Rooftop / Off-Grid
Products – Street
Lights / Lanterns /
Home Lightning
System
Solar Thermal –
Water Heater /
C.S.P
Ways to implement Solar Energy

5. Benefits of Solar PV
Systems

6.  State & local - rebates and
tax incentives
 Uninterruptable power
against frequent
unavailability of power from
the grid
 Reduce dependence on
expensive usage of
diesel generators
 Decrease in transmission
and distribution losses
 Increase the value of
your property
 Create revenue from
unused roof space
 Hedge against rising
utility rates
 Avail benefits of net-
metering
Reduce
electricity
bills
Primary Benefits

7. Solar is regarded as an environmentally stable power source. Additional benefits of installing
solar:
 It can be installed quickly
 It has zero emissions
 It generates no noise
 It requires little maintenance
 It’s efficient
 Photovoltaic technology is proven in performance and availability
 Solar irradiation is predictable
 Set a good example by assisting in reduction of carbon footprint and by demonstrating
environmental consciousness
Secondary Benefits

8. Solar is really beneficial in the following cases:
 For customers who pay huge electrical bills or where the electricity is purchased from
the grid in the range of Rs. 6-14 per unit
 For industries where there is regular load shedding or are dependent on expensive
diesel generators
 Where there is spare rooftop or ground space available
 Business centers with profitable income to avail the taxation benefit
 Have huge requirement for hot water
 Customers having RPO obligations
Who benefits out of solar?

9.  “Net Metering” is an arrangement
under which a consumer can supply
the excess power generated by the
solar roof top photovoltaic
installation to the gird
 The excess units exported is then
tallied with the monthly
consumption and the customer
enjoys an equivalent reduction in his
electricity bill
 Conventional uni-directional meter is
replaced with a smart Bi-directional
meter
Net Metering

10.  Generation time vs. load cycle no longer needs to match
 Excess power that is generated & exported during the day creates a deposit with the
grid which can be redeemed over a monthly cycle
 Generation exported during non-operational days of an industry/commercial space will
not be wasted anymore
 Can accumulate and pass on the monthly credits till end of financial year
 At the end of financial year, Discom will pay APPC rate to the consumer for the
remaining credited units of electricity, which may have remained unadjusted
 Do not require reverse power protection in the system
 Consumer no longer requires a battery back up to store power
 Significant reduction in the monthly electricity consumption
Advantages of Net Metering

11.  As seen the in electricity bill above, excess units to grid are shown under the Export
Reading
 Units consumed from the gird are shown under the Import Reading
 The consumer only pays a bill for the Net Difference
Sample Bill

12. Typical Comparison
Month
Units from Solar
Generation (kWh)
Units Consumed from
Grid (kWh)
Net Electricity (kWh) Effective Bill (kWh)
April 150 170 20 20
June 120 145 25 25
July 120 90 -30 -30
August 120 150 30 0
September 130 80 -50 -50
October 140 80 -60 -60
November 150 280 130 20
December 150 180 30 30
January 170 100 -70 -70
February 180 150 -30 -100
March 180 210 30 -70
Yearly Total 1610 1635

13. Our Services &
Experience for Roof-
Top Solar Projects

14. Our Services For Rooftop Solar
 We provide the following services in full or parts:
 Pre-feasibility study / Devising a suitable scheme
 Initial design
 Material selection
 Detail engineering
 Project management
 Site Installation up to grid connectivity
 System commissioning
 Procurement of best quality product with very competitive pricing
 Liasionning with various government agencies for net-metering
 Guide & undertake operation & maintenance of the system

15. Few Of Our Roof-Top Projects…
1000kW On-Grid System,
Bangalore
45kW Net-Metering System,
Mumbai
28kW On-Grid System,
Boisar
10kW Net-Metering System,
Navi-Mumbai
25kW Hybrid System,
Pune
6kW On-Grid System,
Mumbai

16. Contact us
Excelsior Engineering Solutions
Email: info@excleng.com
Phone: +91-22-27783636
Thankyou