1. CONFERENCE ON A3: AVAILABILITY, ACCESSIBILITY AND AFFORDABILITY OF POWER IN INDIA The Roadmap to Ensuring Power For All on 06 May 2015, CII-Sohrabji Godrej Green Business Centre, Hyderabad
Prof.Narashima Kishore Koka, CEO
Er.Swaminathan, M.Tech, Project Engineer
Er.Ms.Mahira Banu,B.E,Project Engineer

2. Solar Rooftop- Case Study of Karnataka

3. Introduction
A rooftop photovoltaic power station, or rooftop PV system, is a Photovoltaic system that has its electricity-generating solar panels mounted on the rooftop of a residential or commercial building or structure.
Rooftop PV systems on residential buildings typically feature a capacity of about 5 to 20 kilowatts (kW), while those mounted on commercial buildings often reach 100 kilowatts or more.

4. Key Facts India’s current installed power capacity: 254 GW
India’s current RE portfolio: 33.79 GW
India’s RE generation potential from commercially exploitable resources: 895 GW
India’s RE target for 2022: Total generation capacity = 175 GW
§ Solar: 100 GW (60 GW Ground Mount, 40 GW Roof Top)

5. § Wind: 60 GW
§ Others: 15 GW (Small-Hydro, Biomass)
Total investments expected by 2022: US$ 100 Billion
Total no. of companies committed to India’s RE growth: 293
Total commitment from RE developers: 266 GW

6. Total commitment from Mfg. sector: 23 GW
Debt funding commitment from Banking sector: 78 GW
Investment commitment from overseas companies: 58 GW

7. Solar Rooftop System

8. 3 TYPES OF ROOFTOP SOLAR PV SYSTEMS
Grid-tied :
These rooftop systems are primarily designed to supply the generated power to the grid and also power the load.
These systems will NOT generate power during a power failure as the inverter shuts down the system to stop sending power into the grid and avoids the risk of electrocuting utility personnel who are working to repair the grid

9. 2. Grid-interactive :
This system works in conjunction with either a battery backup or diesel generator to support the load even during a power failure.

10. 3. Off-grid:
This system does not work with the grid and is designed to work only with a battery backup or diesel generator in off-grid applications.
The difference between the systems lies in the kind of inverter used, and the inclusion of batteries.
As various vendors use different terminology for these systems.

11. TURN YOUR ROOFTOP INTO A POWER PLANT
Energy is the important ingredient for present industrial, commercial operations, education institutes. Invariably we ignore the energy cost in our costing.
The growing prices for grid electricity and diesel fuel to power diesel generators are a major concern for companies in India.
Solar PV rooftop systems for captive consumption can be integrated with the existing electricity infrastructure to offset a major part of your energy needs.

12. The Net metering policy guidelines introduced by many of the state is encouraging all category consumers to think on the Solar PV rooftop power generation.
Another encouraging factor is Accelerated depreciation 80% is available under the Income tax act for Solar power generation and investments in India.
This can provide significant savings to a solar plant developer who is a taxable assess and has sufficient profits against which the depreciation can be charged.
The recent Karnataka Rooftop policy has proposed a wonderful net metering tariff to encourage installations from 1 KW to KW of solar Photovoltaic.
The tariff for the net metered export is Rs 9.53 for non subsidized installations and Rs 7.20 for the subsidized installation.

13. Component cost of Grid connected rooftop PV systems
A rooftop solar PV system costs approximately Rs. 1,00,000 per kWp (kilowatt peak) including installation charges but without batteries and without considering incentives . The cost breakup for a 1 kWp system is given below:

15. Case study : In Karnataka
Considering the 10 KW contract demand for the existing operation.
Running the operations for 8 hrs. The Annual consumption is appx: Units
(considering 300 sunny days)

16. Solar

17. Non Solar

18. TECHNO ECONOMIC – SITE REPORT/ QUESTIONNAIRE- ROOF TOP PV SOLAR PROJECT
 NAME OF PERSON AUTHORISED PERSONNEL :
DATE :
NAME OF THE CLIENT :
COMMUNICATION ADDRESS OF THE CLIENT :
[with Contact Phone or Mobile Number]
CLIENT SITE ADDRESS :

19. LATITUDE & LONGITUDE OF THE SITE : SYSTEM REQUIRED BY CLIENT IS : Capital Subsidiary - Individual [up to 1 kWp]. Capital Subsidiary – Commercial [up to 100 kWp]. Capital Subsidiary Third party sale. Third Party Sale [REC]/ Captive Project State / National Scheme SOLAR SYSTEM POSITION : Ground Mounted Roof Top

20. TYPE OF BUILDING : RESIDENTIAL COMMERCIAL SCHOOLS OR COLLEGES
INDUSTRIES IT PARKS OR HOSPITALS
TYPE OF ROOF :
RCC FLAT METAL ROOF ASBESTOS ROOF TILED ROOF
[Mention Angle if you know Roof Tilted Angle ]
GENERAL DETAILS
Are the Drawings for Land / Roof top Available : YES NO
If yes, have the Drawings be collected :
Total Energy Consumption per Month : kWh
Monthly Electricity Consumption from EB : kWh

21. Total Running Load for DG with No.of.Hours : ------------ kWh
Total Disel Consumption per day : Litres
Total Free Area available for system installation : Sq.Mtr
 If on roof top total duration for lease agreement
In case of a lease property : Years
Is Plant being set up to fulfill RPO Obligation : YES NO
TYPE OF EXISTING AC CONNECTION : Single Phase 230V [Phase + Neutral]
Three Phase 415V [RYB+ Neutral]

22. S.No LOAD DESCRIPTION WATTAGE QUANTITY TOTAL
LOAD DETAILS[OFF-GRID RESIDENTIAL CLIENTS]
S.No
LOAD DESCRIPTION
WATTAGE
QUANTITY
TOTAL

23. BATTERY BACKUP REQUIRED:
No.of.hours / Day: 2 Hours 3 Hours 4 Hours 5 Hours 6 Hours.
No.of.Days Required: One Day Two Day Three Day Four Day.
Photos of the Roof are taken YES NO

24. EXISTING SYSTEM AVAILABLITY CAPACITY VOLTAGE LEVELS Transformer
LOAD CHART: [ON-GRID & GRID-TIED SYSTEM CLIENTS]
S.No
LOAD DESCRIPTION
KILO-WATT
QUANTITY
TOTAL 01
Lighting Loads 02
Inductive Loads 03
Other Loads
EXISTING SYSTEM AVAILABLITY
CAPACITY
VOLTAGE LEVELS
Transformer
Diesel Generator

25. EXISTING SYSTEM AVAILABLITY:
AC SYSTEM VOLTAGE [in kV]
3 Phase + Neutral [3ø 415V 50 Hz]
3 Phase 11kV
3 Phase 22kV
3 Phase 33kV
SOLAR SYSTEM SHOULD SYNCHRONIZED WITH EXISTING MV PANEL: YES NO

26. UTILITY SCALE GRID CONNECTED PV PROJECTS LAND AREA IN ACRE’S : SYSTEM CAPACITY [CLIENT WOULD LIKE TO PROVIDE] : TRANSMISSION VOLTAGE GRID AVAILABLE NEAR PLANT : DISTANCE B/W POWER EVACUATION SUBSTATION & SITE : ANY OBSTACLES IN THE SITE : Signature with Date Signature with Date [M/s. KNK Renewables] CLIENT Er. P.Kumar - VP – Solar. Prof. Narasimha Kishore Koka - CEO

29. Thank you and time to Brain storm, “Be the change that you wish to see in the World” -Mahatma Gandhi Prof. Narasimha Kishore Koka,CEO Er.Swaminathan, M.Tech, Project Engineer Er.Ms.Mahira Banu,B.E,Project Engineer Knk Renewables Knk Bio-tech.Inc Poly Engineers & Consultants Lamda Power Geenco Private Ltd. Bangalore Cell: ,