The document discusses grid-connected roof top solar power plants. It describes the key components of a PV system, including solar panels, inverters, mounting equipment. It outlines the states designated for roof top models in India. It explains net metering, which credits system owners for excess electricity added to the grid. The document provides details on the application and approval process for net metering. It presents a case study on installing a 10kW roof top system and analyzes the yearly energy output, savings compared to the grid, payback period, green benefits, and individual benefits of such a system.
2. Solar Photovoltaic
• PV system, is a power system designed to
supply usable solar power by means
of photovoltaic's. It consists of an
arrangement of several components,
including solar panels to absorb and convert
sunlight into electricity, a solar inverter to
change the electric current from DC to AC, as
well as mounting ,cabling and other electrical
accessories to set up a working system.
5. State Designated for Roof Top Model
• Uttar Pradesh
• Delhi
• Haryana
• Himachal Pradesh
• Punjab
• Kolkata
• Tamil Naidu
• Andhra Pradesh
• Rajasthan
• Gujarat
• Maharashtra
• Orissa
6. Net Meter
• Net metering is a billing mechanism that
credits solar energy system owners for the
electricity they add to the grid. For example, if
a residential customer has a PV system on the
home's rooftop, it may generate more
electricity than the home uses during daylight
hours. If the home is net-metered, the
electricity meter will run backwards to provide
a credit against what electricity is consumed
at night
7.
8.
9. What is Net Metering
Net metering is the process through which you
attain a “dual-benefit “by installing a solar power
plant on the roof, open space, walls of the
building to generate electricity.
Generated power is first used in the building as
per the requirement and the surplus power is fed
to the grid of utility.
10. WHO CAN INSTALL
• Consumers of electricity having minimum
sanctioned load of 1.25KW and maximum of
12.50 MW who intend to generate their own
electricity and desire to contribute towards
environmental protection can install Solar PV
plants on Roof-Tops/ Walls/Open area of
Individual households, Industries, commercial
establishments, institutions, residential
complexes, Schools, Colleges, Hospitals, sheds,
cold stores, govt. and semi-govt. buildings, etc.
11. The maximum capacity of solar
power plant to be installed in a
building would be 80% of the
sanctioned electricity load of
that building.
12. What is the Procedure for Net Metering
1.Submission of Application
• For installation of solar power plant the
applicant has to register/apply online at any
one the sites with copy of latest electricity bill
and available shadow free area at the top of
roof/ walls/ open space within the compound.
Period of Time ::3 weeks
13. Approval For Installation
• After verification, Discom will give online
approval to the applicant for installation of
required capacity Solar Power Plant.
• Period of Time: 30 days
14. Processing Fee & Signing of
Agreement with Discom
• The consumer intending to setup Roof Top
solar power plant shall deposit the
processing fee of Rs. 50 per KVA or part
there of subject to maximum of Rs.10000
in the concerned DS/ Sub Division office of
Discom on first come first serve basis. The
consumer shall also sign supplementary
agreement with Discom
15. Installation of Solar Power Plant
• After approval from Discom, applicant will
contact Medors to install solar power plant
and submit online work completion report
along with photograph of the system and
single line diagram of the synchronizing
and protection arrangements.
16. Installation of Bi-directional Meter
• After receiving project completion report,
Bi-directional meter would be installed at
the premises of the beneficiary by Discom.
For this, applicant has to deposit
prescribed fee of Bi-Directional meter at
Sub Divisional Office of Discom.
17. Release of Subsidy
• After installation of Bi-directional meter
the plant shall be treated as commissioned
and the beneficiary will apply online for
release of subsidy to SNA along with the
work completion report duly verified by
Discom
• Subject to availability of MNRE,GOI funds
at the rate of INR 12 Per Watt .
18. Banking Mechanism And Billing
• Discom shall take energy meter readings for
import or drawl and export or injection of
power and work out the net energy flow
quantum from or to the consumer. In case the
net flow is towards the Discom i.e. the
consumer has injected/exported the net
surplus energy to the Discom system, such
quantum will be treated as energy banked by
the consumer with Discom in the current
billing cycle
19. Discom Tariff
• The Energy Bill for import will be prepared as
per the retail supply tariff as approved by the
CERC for the category to which the consumer
belongs. The energy exported to Discom from
the rooftop Solar PV system shall be set-off
against the energy imported from the Discom
grid at the CERC approved retail supply tariff
applicable to the particular consumer
category.
23. Scope Of Work
• 10000 wp Solar P.V Plant
• European On Line Inverter 10 kW
• Galvanized Mounting Structure
• Application & Agreement
• Approval for Net Metering
• Installation & Commissioning
24. Power Production Per day
• 10000 wp solar P.V array
• 250 wp x 40 panel = 10000 wp
• Module type Crystalline
• Hourly out put : 10000 wp at 1000 w/h/mt2 sun
radiance
• Perfect Sun hours average 4.5 hrs per day
• Per day power output will be 4.5 x 10 = 45 kWh
• Yearly production will be 45x 365 = 16425 kWh
25. Yearly Gross Saving Comparison
From Grid
• The Cost of one kWh will be Inr 8 inclusive of
taxes so daily saving will be Inr 360/-
• Yearly Saving will be :
16425 kWh x 8 = 1,31,400/-
26. Pay back period in comparison with grid
• The Cost of the System :- 7,50,000 /-
• Subsidy Amount : 1,20,000/-
• Saving with Grid :- 1,31,400/- Per Year
• Pay back period with grid is = 4 years
27. Green Calculation with Grid
• For Producing 1 Unit of Electricity their is
emission of 0.6 kg of Co2in atmosphere.
• You Contribute to reduce Co2 from
atmosphere by
16425x.06 = 9855 kg per year
9855 kg
28. Financial Benefits for Installing Solar
Roof Top Model
• Accelerated Depreciation in Income Tax
• Subsidy form Government Rs. 12 Per Watt
• Power Sell Agreement with your Discom
• Pay Back Period is 3.5 Years
• Life of System is 25 yrs
• A Gift to Nation
29. Individual Benefits :-
Consumer becomes generator for his own
electricity requirements.
Reduction in electricity Bills.
Elimination of minimum monthly charges.
Generation during the day time when
demand is high.
