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Introduction to rooftop solar technology & government policy

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As we know The future is bright for continued PV technology dissemination. Rooftop Solar Technology – RTPV technology fills a significant need in supplying electricity, creating local jobs and promoting economic development in rural areas, avoiding the external environmental costs associated with traditional electrical generation technologies.

i think Major power policy reforms and tax incentives will play a major role.

so let us we focused on Rooftop Solar Technology & Government Policy.

For details download PDF.

Published in: Engineering

Introduction to rooftop solar technology & government policy

  1. 1. INTRODUCTION TO ROOFTOP SOLAR TECHNOLOGY & GOVERNMENT POLICY. Prepared by: Urval V. Chotalia www.soururjaportal.in chotalia222urval@gmail.com 1 www.soururjaportal.in
  2. 2. WHY SOLAR ROOFTOP  Simple infrastructure.  very quick & easy installation of RTPV.  Saves on transmission & distribution infrastructure.  Reduce & save on cost of managing power delivery.  Quick PBP or ROI.  Attractive government policy. ~ JNNSM, Net metering, PPA etc  Overcome chance of electricity shortage or failure.  Modular character technology. 2 www.soururjaportal.in
  3. 3. BENEFITS OF RTPV www.soururjaportal.in 3  It’s reduce requirement of land for addition of solar capacities at national level.  RTPV Benefits For Consumer  Reduce the dependency on grid.  Mitigates diesel generator dependency.  Long term reliable power supply. o RTPV Benefits For DISCOMS  It reduce peak load demand.  T&d and conversion losses as power is consumed at the point of generation.
  4. 4. ROOF TOP TECHNOLOGY Grid connected technology. Gross Metering – Sale To Grid. Net Metering. Off Grid Technology Stand Alone Mini Grid. Bilateral System. Hybrid Technology. 4 www.soururjaportal.in
  5. 5. ROOF TOP TECHNOLOGY  Off Grid Technology. - SLD 5 www.soururjaportal.in PV array PV charge controller Battery bank DC-AC Inverter/charger Electrical load/appliances.
  6. 6. ROOF TOP TECHNOLOGY  Off Grid Technology.  Simple working principle & installation technique..  The off grid stand alone solar power system work as both ac and dc system.  We use battery backup for storage of excess power generated.  Suitable for remote locations and places within utility grid supply.  Independent of diesel generators and grid power supply. 6 www.soururjaportal.in
  7. 7. ROOF TOP TECHNOLOGY  Solar Grid-tied System - SLD 7 www.soururjaportal.in PV system DC combiner cabinet & MPPT controller Dc-Ac static converter – Inverter. Bidirectional meter Household appliance OR Distribution network - Grid.
  8. 8. ROOF TOP TECHNOLOGY www.soururjaportal.in 8  Solar Grid-tied System.  The whole system Tied/synchronized with existing utility grid.  It’s a best system in which not only we feeds the excess generated power into the grid but also received power in case of high demand from the grid via bi-directional meter.  We have opportunity earnings by selling the excess electric power to the grid.  In this technology we avoid use battery bank.
  9. 9. ROOF TOP TECHNOLOGY www.soururjaportal.in 9  Solar Grid-tied System.
  10. 10. ROOF TOP TECHNOLOGY www.soururjaportal.in 10  Solar Grid-tied System
  11. 11. ROOF TOP TECHNOLOGY www.soururjaportal.in 11  Solar Grid-tied System
  12. 12. ROOF TOP TECHNOLOGY www.soururjaportal.in 12  Solar Grid-tied System
  13. 13. ROOF TOP TECHNOLOGY  Solar Grid-tied System Advantages.  No requirement of additional land.  Saving in transmission & distribution losses.  Improvement of tail-end grid voltage & reduction in system congestion with higher self consumption of solar electricity.  Lowest initial investment. 13 www.soururjaportal.in
  14. 14. ROOF TOP TECHNOLOGY  Solar Hybrid System. 14 www.soururjaportal.in PV array DC combiner cabinet & MPPT controller. Battery bank DC-AC static converter – Inverter/charger. House hold appliance. Backup Generator
  15. 15. ROOF TOP TECHNOLOGY  Solar Hybrid System.  Solar energy together with a secondary source of power to run the loads  The secondary source can be diesel  Generators, utility grid, wind mills etc.  Reduction in utility bills and fuel expenses  Battery backup for night time/cloudy day usage 15 www.soururjaportal.in
  16. 16. SUCCESSFUL RTPV PROJECTS.  Delhi metro rail RTPV project.  RTPV Bangalore cricket stadium.  L&T Commercial building.  RTPV petrol pump. 16 www.soururjaportal.in
  17. 17. OVERVIEW OF DIFFERENT SUPPORT SCHEMES FOR ROOFTOP SOLAR PV 17 www.soururjaportal.in Schemes DETAILS Direct Capital Subsidy Direct capital subsidy aimed at tackling the up-front cost barrier, either for specific equipment (PV modules) or total installed PV system cost. Renewable Portfolio Standard (RPS) A mandated requirement that the electricity utility source a portion of their electricity supplies from renewable energy. Solar Set Aside RPS Target A mandated requirement that a portion of the RPS be met by solar electricity supplies. Financing Scheme Share offerings in private PV investment funds plus other schemes that focus on wealth creation and business success using PV as a vehicle to achieve these ends. Tax Credits/Tax Benefits Allows some or all expenses associated with PV installation to be deducted from taxable income streams. In India accelerated depreciation on investment in RE devices (excluding wind power plants) is allowed. Net Metering/Net-billing/Self consumption Incentives The system owner consumes solar electricity and receives retail value for any excess electricity fed into the grid, as recorded by a bi- directional electricity meter and obtained over the billing period. The electricity taken from the grid and the electricity fed into the grid are tracked separately. The electricity fed into the grid is valued at a different price.
  18. 18. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV 18 www.soururjaportal.in  Andhrapradesh. Scheme Grid connected System size/ programme scale Residential consumer: 1 - 3 kWp. Commercial, industrial, and institutional consumer: 5 - 100 kWp Targeted segment 3 phase service consumers Incentive 30 per cent capital subsidy from MNRE and 20 per cent capital subsidy from state government* (*only for projects up to 3 kW for residential consumers) Electricity sale/ utilization mechanism Self-consumption and sale to utility at pooled cost for exported power for 7 years. Energy banking for six months is allowed. Grid connectivity Net metering
  19. 19. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Chhattisgarh 19 www.soururjaportal.in Scheme Grid Connected System size/ programme scale 500 to 1,000 MWp by 2017 Targeted segment Rooftop and other installations. Under rooftop residential, commercial and industrial buildings Incentive 30 per cent capital subsidy from MNRE Electricity sale/ utilization mechanism Sale to utility at feed-in tariff rate of INR 4.35 /kWh. Grid connectivity Both gross and net metering
  20. 20. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Delhi 20 www.soururjaportal.in Scheme Grid connected System Size/ Programme Scale Minimum system size is 1 kWp and no information on program scale Targeted Segment Residential, commercial, industrial, and Institutional buildings Incentive 30 per cent capital subsidy from MNRE Electricity Sale/ Utilization Mechanism Self-consumption and energy banking for one Year Grid Connectivity Net metering
  21. 21. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Gujarat 21 www.soururjaportal.in Scheme Grid connected System size/ programme scale No limit, total 30 MWp in six cities Targeted segment Government, institutional, residential, commercial and industrial buildings Incentive Roof owners get paid lease rent (minimum INR 3.00/kWh) and the project developer gets feed-in- tariff for 25 years Electricity sale/ utilization mechanism Sale to utility Grid connectivity Gross metering
  22. 22. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Karnataka 22 www.soururjaportal.in Scheme Off grid and grid connected System size/ programme scale 400 MWp by 2018 Targeted segment All consumers Incentive 30 per cent capital subsidy from MNRE Electricity sale/ utilization mechanism Self-consumption and sale surplus power to utility Grid connectivity Net metering
  23. 23. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Kerala 23 www.soururjaportal.in Scheme Off grid and grid connected System Size/ Programme Scale Off-grid:- 1 kWp (10,000 systems) Grid-connected:- 1kWp to 1 MWp Targeted Segment Off grid:- Household and small cottage industries Grid connected:- All Consumers Incentive Off grid:- 30 per cent capital subsidy from MNRE + INR 39,000 /kW capital subsidy from state government Grid connected:- Only 30 per cent capital subsidy from MNRE Electricity Sale/ Utilization Mechanism Off grid:- Only self consumption Grid connected:- Net metering Grid Connectivity Net metering
  24. 24. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Rajasthan 24 www.soururjaportal.in Scheme Grid Connected System size/ programme scale 1 MW capacity each and total of 50 MWp Targeted segment Not mentioned Incentive FiT Electricity sale/ utilization mechanism Sale to utility Grid connectivity Gross metering
  25. 25. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Tamil Nadu 25 www.soururjaportal.in Scheme Grid connected System size/ programme scale (i) 350MW during 2012-15 in 3 phases (ii) 10MWp (10,000 - 1kW systems) Targeted segment (i) 50MWp for domestic customers and 300MWp for government buildings and government schemes for rural and urban lighting (ii) 10,000 residential Houses Incentive i) GBI of INR 2.00/ kWh for the first two years, INR 1.00/kWh for next two years and INR 0.50/kWh for the subsequent two years (ii) 30 per cent capital subsidy from MNRE and INR 20,000 per system capital subsidy from state Government Electricity sale/ utilization mechanism Self-consumption and energy banking for one Year Grid connectivity Net metering
  26. 26. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  Uttarakhand 26 www.soururjaportal.in Scheme Grid Connected System size/ programme scale 0.3–500 kWp Targeted segment All consumers Incentive 30 per cent capital subsidy from MNRE Electricity sale/ utilization mechanism Either self consumption or sale to utility Grid connectivity Gross metering and net metering
  27. 27. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  West Bengal 27 www.soururjaportal.in Scheme Rooftop and small PV installations System size/ programme scale 16 MWp capacity installation by 2017 Targeted segment All consumers Incentive 30 per cent capital subsidy from MNRE Electricity sale/ utilization mechanism Self-consumption and sale of surplus electricity to the Utility Grid connectivity Net metering
  28. 28. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  SECI 28 www.soururjaportal.in Scheme Grid connected System size/ programme scale 100–500 kWp (aggregation is allowed) Targeted segment Any building in 4 cities – Phase I - 5.5 MW 6 cities – Phase II - 11.1 MW 9 cities – Phase III - 10 MW Incentive 30 per cent capital subsidy from MNRE through SECI Electricity sale/ utilization mechanism Self-consumption and sale to utility Maximum chargeable fixed tariff is up to INR 6.00/kWh for 25 years under RESCO model Grid connectivity Both gross and net metering
  29. 29. DETAILS OF DIFFERENT STATE AND CENTRAL POLICIES FOR ROOFTOP SPV  MNRE (RPSSGP) 29 www.soururjaportal.in Scheme Grid connected System size/ programme scale Up to 2MWp Targeted segment Both rooftop and ground mounted Incentive GBI (INR 5.50 /kWh for financial year 2010--11 and will escalate by 3 per cent/year. Electricity sale/ utilization mechanism Sale to utility Grid connectivity Gross metering
  30. 30. GUIDELINES UNDER DERC – NET METERING FOR RENEWABLE ENERGY, REGULATIONS. 2014  Available Capacity at Distribution Transformer :- For Connecting Renewable Energy System for Net Metering by the Distribution Licensee shall not be less than 20% (Twenty percent) of the rated capacity of respective distribution transformer.  Procedure for Application and Registration (by DISCOMs) I. Feasibility Analysis fee of Rs. 500/-, within 30 days. II. Registration :- Consumer To apply in 30 days with charges 1000 to 15000 III. Connection Agreement ~ To be executed within 30 days from the date of registration between DISCOM and Consumer.  Interconnectivity, Standards and Safety :- Shall be governed by the Central Electricity Authority (Measures relating to Safety and Electric Supply), Regulations, 2010, as amended from time to time. 30 www.soururjaportal.in
  31. 31. GUIDELINES UNDER DERC – NET METERING FOR RENEWABLE ENERGY, REGULATIONS. 2014  Metering Arrangement And Standards :- i. Cost of the Net Meter, which is capable of recording both import and export of electricity to be borne by the consumer. ii. Meters shall be Meter Reading instrument (MRI) compliant or AMR (Automatic Meter Reading) or AMI (Advanced Metering Infrastructure) compliant for recording meter readings. 31 www.soururjaportal.in
  32. 32. GUIDELINES UNDER DERC – NET METERING FOR RENEWABLE ENERGY, REGULATIONS. 2014  Procedure Of Billing & Accounting :- i. Non Time Of Day Tariff Consumers :- surplus units injected by the consumer shall be carried forward to the next billing period as energy credit and shown as energy exported by the consumer for adjustment against the energy consumed in subsequent billing periods within the settlement period. ii. Time Of Day Tariff Consumers :- a) The electricity consumption in any time block (e.g., peak hours, off-peak hours, etc.) shall be first compensated with the electricity generation in the similar time blocks in the same billing cycle. b) If the consumer is injecting energy in the peak hours or in a time block when Distribution Licensee is having more demand than the available energy, Distribution Licensee with the approval of the Commission may propose incentives to such consumers . 32 www.soururjaportal.in
  33. 33. GUIDELINES UNDER DERC – NET METERING FOR RENEWABLE ENERGY, REGULATIONS. 2014  Tariff at the end of financial year for surplus energy :- The Consumer shall be paid for net energy credits which remain unadjusted at the end of the financial year at the rate of Average Power Purchase Cost (APPC).  Theft And Tempering Of Meter(s) :- As per Electricity Act 2003.  Dispute Resolution :- by DERC  Violation Of Guidelines :- Penalty as decided by DERC  Powers to amend : DERC 33 www.soururjaportal.in
  34. 34. BUSINESS MODELS FOR RTPV www.soururjaportal.in 34  BUSINESS MODELS
  35. 35. REFERENCES  http://mnre.gov.in/file-anager/UserFiles/Rooftop-Presentation-on- 07072015.pdf  http://mnre.gov.in/file-anager/UserFiles/Rooftop-SPV-White-Paper-low.pdf  http://mnre.gov.in/filemanager/UserFiles/Presentation-on-Consultation- Meet-with-C  http://www.soururjaportal.in/gujarat-government-to-kick-start-solar-rooftop- project-for-citizens/  http://www.soururjaportal.in/procedure-applic…-solar-pv-system/  http://mnre.gov.in/filemanager/UserFiles/workshop-gcrt- 0870616/suryamitra-mob-app.pdf 35 www.soururjaportal.in
  36. 36. SUMMERY  The future is bright for continued PV technology dissemination. RTPV technology fills a significant need in supplying electricity, creating local jobs and promoting economic development in rural areas, avoiding the external environmental costs associated with traditional electrical generation technologies.  Major power policy reforms and tax incentives will play a major role.  Use RTPV & reduce climate change effect. 36 www.soururjaportal.in
  37. 37. THANK YOU…

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