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Registered No. HSE-49/2016
PART I EXTRAORDINARY
No.271 AMARAVATI, TUESDAY , JUNE 6, 2017 G.165
NOTIFICATIONS BY GOVERNMENT
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ANDHRA PRADESH ELECTRICITY REGULATORY COMMISSION
Power Evacuation from Captive Generation, Cogeneration and Renewable Energy Source
Power Plants (Regulation No. 3 of 2017).
Lr.No.APERC / Secy / F.No.S-19 /17, Dated : 05-06-2017
1.Introduction:
Transmission Corporation of Andhra Pradesh Limited (APTRANSCO), Eastern Power
Distribution Company of Andhra Pradesh Limited (APEPDCL) and Southern Power Distribution
Company of Andhra Pradesh Limited (APSPDCL) made a proposal, seeking power evacuation
guidelines covering different types of Power generation plants like Solar, Wind, Small hydro,
Bio-mass and Municipal Solid Waste:
The Commission considered the proposals submitted by the DISCOMs and APTRANSCO and
having identified the need for issuing a comprehensive regulation on Power evacuation, a draft
regulation was prepared and the draft Regulation was hosted in the Commission’s web site for
seeking comments/suggestions from interested persons and all stakeholders. Considering all the
comments/suggestions, the Commission makes the following Regulation :
2. In exercise of the powers conferred by Section 30, Section 86 (1) (e) and read with
sub-section (1) of Section 181 and clause (zp) of sub-section (2) of Section 181 of the Electricity
Act, 2003 (36 of 2003) and clause 5.2.26 of National Electricity Policy and clause 5.12 of
National Tariff Policy and all other powers enabling it in that behalf, the Andhra Pradesh Electricity
Regulatory Commission hereby makes the following Regulations, namely :
[1]2 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-I
3. Short Title, commencement and extent :
a) This Regulation shall be called the “Andhra Pradesh Electricity Regulatory
Commission (APERC) Regulation on Power Evacuation from Captive Generation,
Cogeneration and Renewable Energy Source Power Plants (Regulation No. 3 of
2017)”.
b) This Regulation shall come into force with effect from the date of its publication in the
Andhra Pradesh Gazette.
c) This Regulation shall apply to Distribution Licensees, Transmission Licensees, captive
generating plants, cogeneration power plants and all Renewable Energy source power
plants.
d) In case of any inconsistency between the provisions of this Regulation and any other
Regulation, order or Practice Directions of the Commission, the provisions of this
Regulation will prevail.
4. Definitions :
(1) “Act” means the Electricity Act, 2003 (36 of 2003) ;
(2) “Authority” means the Central Electricity Authority referred to in sub-section(1)
of Section 70 ;
(3) APTRANSCO means, a transmission company having transmission licence granted
under Section 14 of the Act, authorized to undertake transmission activity in
the State.
(4) “Captive generating plant” means a power plant as defined U/s 2 (8) and shall
comply with qualifications prescribed under Rule 3 of the Electricity Rules
notified by Central Government U/s 3 of Act as amended from time to time.
(5) “CERC” means the Central Electricity Regulatory Commission established under
Section 76 of the Act ;
(6) “Cogeneration” means a process which simultaneously produces two or more forms
of useful energy (including electricity) ;
(7) APERC or “Commission” means the Andhra Pradesh Electricity Regulatory
Commission ;
(8) “Conservation” means any reduction in consumption of electricity as a result
of increase in the efficiency in supply and use of electricity ;
(9) “Dedicated feeder (line)1' means any electric supply-line for point to point
transmission which are required for the purpose of connecting electric plants of
a Captive Generation Plant, Cogeneration Plant or Renewable Energy Source
Power Plant like Solar, Wind, Small Hydro, Bio-mass and Municipal Solid
Waste (MSW) to APTRANSCO/DISCOM sub-stations.June 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 3
(10) “Distribution Licensee” or “DISCOM” means a licensee authorised to operate
and maintain a distribution system for supplying electricity to the consumers
in his area of supply;
(11) “Grid” means transmission network or distribution network of APTRANSCO/
DISCOM.
(12) “Licence” means a licence granted under Section 14 of the Act, 2003 ;
(13) “SLDC” or “State Load Dispatch Centre” means the centre established
under Section 31 of the Act ;
(14) “State” means the State of Andhra Pradesh.
(15) “State Grid Code” means the grid code specified by the Commission.
(16) “Power evacuation” means a facility that allows generated power to be
immediately transmitted from a generating plant to the grid for further transmission/
distribution to load centers.
(17) “Reform Act” means the Andhra Pradesh Electricity Reform Act, 1998.
(18) “Regulations” means the regulations made by the Commission under the
provisions of the Act;
(19) “Renewable Energy Sources” (hereinafter called ‘RE Sources’) means
renewable energy sources such as small hydro, wind, solar, biomass,
bio fuel co-generation (including bagasse based co-generation), municipal
solid waste and such other sources as recognized or approved by the
MNRE or State Government ;
(20) “Year” means a period of twelve months from 1st April of a calendar year
to 31st March of the following calendar year.
(21) Words and expressions used in this Regulation and not defined herein but
defined in the Electricity Act, 2003, shall have the meaning as assigned
to them under the Act.
5. General Terms and Conditions
(1) The Generating Plant shall establish, operate and maintain Generating
Station, sub-station, tie lines and dedicated transmission lines connected
thereto in accordance with :
(a) the technical standards for construction of electrical plants, electric lines
and connectivity with the grid as specified by the Authority ;
(b) safety requirements for construction, operation and maintenance of electrical
plants and electric lines as specified by the Authority;
(c) Andhra Pradesh Electricity Grid Code or Indian Electricity Grid Code (IEGC) ;
6. Power Evacuation:
(1) Independent projects at a particular location shall normally be connected to
the nearest grid substation (SS) of APTRANSCO /DISCOM, as the case
may be.4 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-I
(2) The Solar and Wind power projects developed in cluster will be connected
from the pooling bus/substation of the Solar/Wind farm by erection of
11 kV line or 33 kV line or EHT line for connecting to the existing nearest
grid substation of APTRANSCO /DISCOM, as the case may be.
7. Criteria for determining the power carrying capacity of conductors:
The calculations are based on Continuous current (Thermal loading) limit at 45°C
ambient temperature and Maximum Conductor Temperature (MCT) at 75°C for ACSR
and 85°C AAAC as per IS 802 (Part1-Sec-1) -1995. The types of conductors mentioned
hereunder are illustrative only and not exhaustive. APTRANSCO/DISCOMs/Project
Developers are free to use any equivalent conductor such as All Aluminum Conductors (AAC)
or AL 59 or any other conductors that may come in future with technological
advancement, depending upon the power to be evacuated. While evacuating power from
these power plants, the Power Developers/APTRANSCO/DISCOMs shall select
conductors of proper size based on the power capacity to be evacuated.
8. Power Evacuation capacities using different types of conductors for 11 kV, 33 kV and
EHT voltages :
(1) Power evacuation at 11 kV level to the existing 33/11 kV SS shall be limited
to 3 MW only and power evacuation at 33 kV level to the existing 33/11 kV SS
shall be limited to 10 MW only, due to limitation of substation capacity.
(2) Power evacuation at 33 kV level to the EHT SS shall be limited to 40 MW
subject to availability of transformation capacity. Power evacuation may be
in one or more circuits depending upon availability of bays in that substation
and loading per circuit can go upto 25 MW in case of wind power plants and
whereas in case of other than wind power plants, loading per circuit shall not
exceed 20 MW per circuit.
(3) If required, the DISCOMs/APTRANSCO shall do augmentation of power
transformer capacity or bus bar capacity or erection of new bays within three months
for 33 kV and six months for EHT and provide connectivity to the prospective power
developers for power evacuation.June 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 5
(4) To arrive at transmission line capacity, thermal loading limit at 2 km/hr wind speed
is considered for other than wind power projects.
(5) As mentioned in Central Electricity Authority (CEA) “Manual on Transmission
Planning Criteria, January 2013”, Solar/Wind power being intermittent power,
for evacuation of power from Solar/Wind power projects, ‘N-l’ criteria is not
applied for the immediate connectivity of solar/wind farms with the intra state
grid i.e., the line connecting the farm to the grid and the step-up of
transformers at the grid substation.
(6) As mentioned in CEA “Manual on Transmission Planning Criteria, January 2013”,
the wind and solar farms shall maintain a power factor of 0.98 (absorbing)
at their grid inter-connection point for all dispatch scenarios by providing
adequate reactive compensation.6 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 78 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 910 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 1112 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 1314 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 1516 ANDHRA PRADESH GAZETTE EXTRAORDINARY [Part-IJune 6, 2017] ANDHRA PRADESH GAZETTE EXTRAORDINARY 17
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