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Comparison of Solar-Wind Hybrid Policies-07.02.2019

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A comparative study has been carried by Gensol on Solar-Wind Hybrid Policies issued by Central Government, Gujarat State & Andhra Pradesh (A.P.) in terms of following:
1) Incentives & Pertinent Charges
2) Evacuation & Metering Scheme
3) Energy Accounting & Banking
4) AC-DC Integration & other important clauses.

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Comparison of Solar-Wind Hybrid Policies-07.02.2019

  1. 1. S.No Clause National Gujarat Andhra Pradesh (A.P.) 1 Agency National Wind-Solar Hybrid Policy Gujarat Wind-Solar Hybrid Power Policy-2017 by Gujarat Energy Developer Agency (GEDA) Andhra Pradesh Wind-Solar Hybrid Power Policy -2018 by New & Renewable Energy Development Corporation of Andhra Pradesh Ltd. (NREDCAP) 2 Region(s) - Saurashtra, Kutch & North Gujarat Rayalaseema Belt 3 Operative Period Remain in force till withdrawn, modified or outmoded by the Government. Effective from the date of issuance till period of 5 years Effective for a period of five (5) years from the date of issuance and/ or shall remain in force till such time policy is withdrawn, modified or superseded by the Government. 4 Eligibility for Incentives or Benefits - The Project(s) developed during Operative Period of this Policy for 25 years from the date of commissioning. The Project(s) developed during Operative Period of this Policy for 10 years from the date of commissioning. 5 Project Sizing The small size of the solar PVs capacity can be added as the solar- hybrid component where the wind power density is quite good. The small size of the solar PVs capacity can be added as the solar-hybrid component where the wind power density is quite good. The small size of the solar PVs capacity can be added as the solar-hybrid component where the wind power density is quite good. Gensol Engineering Pvt. Ltd Policy Review: Solar-Wind Hybrid
  2. 2. 6 Rated Capacity of Wind or Solar Projects The rated capacity of one resource should be at least 25% of the rated power capacity of other resource. Consumers may set up Hybrid Project to extent of meeting RPO without limit of Contracted Demand/Sanctioned Load. For captive and third party models, the power contracted from the hybrid project shall be 50% of the sanctioned load of consumer for each solar and wind respectively. The rated capacity of one resource should be at least 25% of the rated power capacity of other resource. 7 Evacuation Voltage - - Both Wind and Solar project(s) should connect to grid in the same region at 132 KV and above either through individual or common pooling station. 8 AC Integration DC Integration The AC output of the both the wind and solar systems is integrated either at LT side or at HT side. In case HT integration, both system uses separate step-up transformer and HT output of the system is connected to common AC Bus-bar. The DC output of the is connected to a common DC bus and a common invertors suitable for combined output AC capacity is used to convert this DC power in to AC power. Only AC integration will be permitted. The AC output of the both the wind and solar systems will be integrated at the pooling/ sending-end sub-station. n the absence of a common RPO : Only AC integration will be allowed. Separate electrical lines and meters need to be laid for both until the pooling or sending-end substation of the hybrid project In the presence of a common RPO : AC or DC integration will be allowed. Common electrical lines may be used up to the pooling substation of the hybrid project. The AC output of the both the wind and solar systems is integrated either at LT side or at HT side. In case HT integration, both system uses separate step-up transformer and HT output of the system is connected to common AC Bus-bar. The DC output of the both the wind and solar PV plant is connected to a common DC bus and a common invertors suitable for combined output AC capacity is used to convert this DC power in to AC power.
  3. 3. 9 Rated Capacity of Wind or Solar Projects The rated capacity of one resource should be at least 25% of the rated power capacity of other resource. Consumers may set to extent of meeting RPO without limit of Contracted Demand/Sanctioned Load. The power contracted from the project shall be 50% of the sanctioned load of consumer for each solar and wind respectively for captive and third party models. The rated capacity of one resource should be at least 25% of the rated power capacity of other resource. 10 Performance Obligation - - Each 1 MW of contracted project should achieve a minimum CUF of 40%. 11 Transmission Line Laying Cost Developers shall undertake addition/augmentation in the system up to the receiving end sub- station at their own cost. Developers shall undertake addition/augmentation in the system up to the receiving end sub-station at their own cost. Developers shall undertake addition/augmentation in the system up to the receiving end sub-station at their own cost. 12 Metering AC Integration DC Integration By apportioning the reading of main meter installed at the receiving station on the basis of readings of ABT meters installed on LT or HT side of the wind and solar PV plant as the case may be. By apportioning the reading of main meter installed at the receiving station on the basis of readings of DC meters installed at the DC output of the wind and solar PV plant. At Pooling Sub-Station: In 15-minute time block by installing ABT compliant meters separately by the Project Developers. At receiving end Sub-Station: On the basis of meter reading of common meter installed at receiving end sub-station appropriately apportioned as per the respective meter reading of wind and solar meters. By apportioning the reading of main meter installed at the receiving station on the basis of readings of ABT meters installed on LT or HT side of the wind and solar PV plant as the case may be. By apportioning the reading of main meter installed at the receiving station on the basis of readings of DC meters installed at the DC output of the wind and solar PV plant. 13 Wheeling of Power (a) captive purpose (b) sale to third party through open access (c) sale to the distribution company (ies) either Captive use or third-party sale or sale of power to the DISCOMs. (a) captive purpose (b) sale to third party through open access (c) sale to the distribution company (ies) either at
  4. 4. at tariff determined by the respective SERC or at tariff discovered through transparent bidding process and (d) sale to the distribution company (ies) at APPC. project specific tariff determined by the APERC or at tariff discovered through transparent bidding process (d) sale to the distribution company (ies) at APPC under REC mechanism and avail RECs. 14 Reactive power - The drawl of reactive power will be charged as per the GERC Orders - 15 Transmission Charges No additional connectivity capacity charges will be levied for hybridisation at existing wind/solar PV plants if already granted transmission connectivity/ access is being used. Transmission charges may be applicable for the additional transmission capacity/ access granted as per prevailing regulation. Existing Projects : Where open access is already granted to the extent of rated capacity of transmission line/ sub-station of GETCO and injection of power from additional wind/ solar capacity to be set up is restricted up to rated capacity, transmission charges are not applicable on such additional capacity. In the cases where there is capacity margin in the existing transmission system/ sub-station of GETCO after taking into account open access already granted to the existing wind/solar project of transmission capacity for allowing additional capacity, the transmission charges shall be applicable on such additional sanctioned/allocated New Projects : Transmission charges shall be applicable on the basis of sanctioned/ allocated transmission capacity. Transmission and Distribution charges shall be exempted upto 50% of the applicable charges for wheeling of power generated from new Wind – Solar Hybrid Power Projects within the State. No additional connectivity capacity charges will be levied for hybridisation at existing wind/solar PV plants if already granted transmission connectivity/ access is being used. Transmission charges may be applicable for the additional transmission capacity/ access granted as per prevailing regulation.
  5. 5. 16 Tariff - Existing Projects: The purchase of power from existing wind/solar capacity shall be in accordance with the respective PPAs with GUVNL. The sale and purchase of power from additional/ new wind/solar capacity shall be at the tariff discovered through competitive bidding (reverse bidding whenever required) undertaken by DISCOMs separately for wind and solar power purchase. New Projects: The purchase of wind/solar power shall be at the tariff discovered through competitive bidding (reverse bidding whenever required) undertaken by DISCOMs separately for wind and solar power purchase until a common tariff mechanism and RPO for the hybrid project is evolved. -
  6. 6. 17 Wheeling Charges - For Captive Use: In case of injection at 66 KV and drawl at 11 KV voltage level, 50% of wheeling charges and 50% of distribution losses of the energy fed to the grid at the receiving end sub- station of GETCO, as applicable to normal Open Access Consumers. For Third-Party Sale: Wheeling charges and losses of energy fed to the grid as measured at receiving-end sub-station of GETCO will be applicable Hybrid Projects availing open access for captive use/ third-party sale under REC mechanism Such projects will be allowed to wheel the electricity on payment of applicable transmission charges/ losses, wheeling charges/ losses and other charges as applicable to other normal Open Access Consumers. - 18 Cross Subsidy Surcharge - For third party sale: Concession of 50% of cross subsidy and additional Surcharge will be given. For projects under REC mechanism: Cross Subsidy and Additional Surcharge will be applicable. 50% of the Cross subsidy surcharge will be paid for third party sale provided the source of power is from projects setup within the State. 19 Electricity Duty - Electricity generated and consumed for self-consumption/ sale to third- party within the State shall be exempted from payment of electricity duty in accordance with the provisions 50% of applicable Electricity duty shall be exempted for captive consumption, sale to DISCOMs and third party sale provided the source of power is from projects set up within the State.
  7. 7. of the Gujarat Electricity Duty Act, 1958 20 Demand Cut - Exemption from demand cut to the extent of 50% of installed capacity of in case of captive consumption and third- party sale within the State. - 21 Supervision Charges - - Exempted from paying the Supervision charges to APTransco/Discom(s) only in case of transmission of power from State Transmission Utility (STU) to Central transmission utility (CTU) 22 Deemed Public Private Partnership (PPP) - - Deemed PPP status will be provided for solar-wind hybrid project. 23 Deemed Non- Agricultural (NA) status - Hybrid parks will be developed on the same lines as solar parks Deemed Non-Agricultural (NA) status for the land where wind-solar hybrid power projects will be accorded, on payment of applicable statutory fees. 24 Pollution Clearance - - Hybrid power projects will be exempted from obtaining any NOC/Consent for establishment under pollution control laws from AP Pollution Control Board. 25 MUST RUN STATUS - - All Wind- Solar hybrid power projects will be treated as “MUST RUN” power plants and will not be subjected to ‘Merit Order Despatch (MOD) principles’ 26 Round The Clock Power - - For Round The Clock (RTC) power by Wind-Solar Hybrid projects, at least 51% of the energy requirement should be from the Renewable Energy projects (Solar/Wind).
  8. 8. 27 Energy Banking /Energy Accounting - If the Consumer does not claim the renewable attribute of wind/solar for meeting its Solar/Non-Solar RPO, energy injection worked out at the receiving end sub-station of GETCO will be set-off against the consumption during the Consumer's billing cycle. If the consumer claims the renewable attributes of solar/wind for meeting its solar/non-solar RPO, then energy accounting will be based on 15- minute time block-basis. In both the cases, surplus power, after giving set off, will be purchased by DISCOM at Average Pooled Power Purchase Cost (APPC) of the year of commissioning of the project. Surplus power, after giving set off, will be purchased by the DISCOM at 85% of Average Pooled Power Purchase Cost (APPC) of the year of commissioning of the project. Banking of 100% of energy will be permitted during all 12 months of the year, based on the feasibility and prior approval of APTRANSCO/APDISCOMs. Banking charges will be adjusted in kind at 5% of the energy delivered at the point of drawl. The unutilized banked energy shall be considered as deemed purchase by Discoms at 75% of the Average Pooled Power Purchase Cost as determined by the APERC for the applicable year. 28 Renewable Power Purchase Obligation (RPO) Fulfilment of solar RPO and non- solar RPO in the proportion of rated capacity of solar and wind power in the hybrid plant respectively. Fulfilment of RPO by purchasing wind/solar power at the tariff determined by GERC or tariff discovered through competitive bidding process. Fulfilment of solar RPO and non-solar RPO in the proportion of rated capacity of solar and wind power in the hybrid plant respectively.
  9. 9. 29 Forecasting Schedule - Forecast will be scheduled for day-to- day operations, which will be governed by regulations as passed and amended by GERC. Project(s) must give the common scheduling and forecasting for the Wind and Solar Project(s) and further at any point of time should not exceed the project capacity. 30 Restrictions - Second hand WTGs/ solar modules or other equipment shall not be eligible for installation - 31 Clean Development Mechanism (CDM)Benefit - The Clean Development Mechanism (CDM) benefits will be shared on net proceeds, starting from 100% to Developer in the first year after commissioning, and thereafter reducing by 10% every year till the sharing becomes equal (50:50) between the Developer and the Power Procurer, in the sixth year. - 32 Security Deposit Bank guarantee equivalent to Rs.2.00 lakhs/ MW in favour of NREDCAP. Developer shall be required to provide Bank Guarantee @ Rs. 3 lacs per MW to GETCO based on allotment of transmission capacity - 33 Liability Charges - Developer shall commission new Hybrid capacity at least 10% of the allotted capacity within 1 month of charging of evacuation line, failing which, the Developer shall be liable to pay long term transmission charges for 10% of allotted capacity till such 10% of allotted capacity is commissioned. - 34 Proposal Fees - - Rs. 25,000/MW
  10. 10. 35 Allotment Fees - - Rs.1,50,000/MW shall be paid at the time of entering into agreement. 36 Project Completion Timeline - - 24 months from the date of allotment.

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