Minimum Voltage Level for interfacing of NRSE/CPP Projects with State Grid

1. a*-PUNJAB STATE POWER CORPORATION LIMITED
(O/O CE/Commercial, Patiata, Ph.No.0175-221449S)
Regd. Office- PSEB Head Office, The Mall, patiala-14700.1
fele Fax:.0175,2210320 emait: ce-conmercial@ospct.in
Commercial Circular no. 23 tZOls
lo
All Engineer-in-chief/Chief Engineer/DS
Under PSPCL
Memo no. 929/933 / DD/SR-67
Dated: 08/06/2015
Sub:- Regarding interfacing voltage of NRSE/CPP projects and
connectivity of Cluster-Solar projects setected through
Competitive Bidding under NRSE policy of punjab Govt./ any
other Policy of the Central covi. (MNRE)- Amendment of
instruction '125.1(f) and addition of inatruction ,t23(a) of
Electricity Supply Instruclions Manuat.
A) The instruction 125.'1(0 of ES|M is hereby amended to the fo owjng
exent:-
The minimum voltage tevel (depending upon neafest grid
substation) for interfacing of NRSE/CPP projects with State Grid will
be as follows:-
Sr. Capacity of NRSE/CPP project
No
i. Up to 2.5 MW
ii. More than 2.5 lrw & upto 25 tVtW
iii. More than 25 MW
Voltage
1,1 KV
33 KV/66 KV
132 KVt220 KV
B) The following instruction 123(a) is hereby added in the ES VI:-
123 (a),For connectivity of Cluster Solar projects selected through
Compeiitive Bidding under NRSE policy of punjab Govt./ a;y
other Policy of the Cenirat covt. (MNRE) for suppty of power
at tariff other than preferential tariff:
"lnter"connection point / Detivery /Metering poini,, shall mean the
point at 33kV or above where the powef from the Solaf power proiect
is injected into the CTU/STU/transmissron system (inctuding the
dedicated transmission line connecting the Solar power project with
the CTU/STU system). lvletedng shall be done at this interconnection
point where the power is injected into the CTU/STU system, i.e. the
Delivery Point. For interconnection with grid and metering, the Sotar
Power Developers(SPDs) shall abide by the relevant CERC
Regulations, crid Code and Central Electricity Authority (tnstallation
and Operation of Meters) Regulations, 2006 as amended and revised
from time to time:
"Pooling Poinf' shall mean a point where more than one solar pV
Projects may connect to a common transmission line built and

2. operated by the SPD or any third party or by STU on behalf of the
SPD. This common transmission line shall further connect with the
interconnection/metering point. In this case, metering will be done at
the Interconneciion point along with subsidiary meters at the pooling
point to determine the generation by each Project;
Connectivity with the crid:
i. The transmission of power up to the point of interconnection
where the metering is done for energy accounting shall be the
responsibility of the Solar Power Developer (SPD) at his own cost.
The maintenance of Transmission system up to the Inter-
connection Point sha be the responsibility of the SpD.
ii. The arrangement of connectivity can be made by the SpD
through a dedicated transmission line which the SpD may
construct himself or get constructed by STU or Discom or any
other transmission agency.
iii. The entire cost of transmission including cost of construction of
line, wheeling charges, losses etc. from the project up to the
Delivery Point will be borne by the SpD and dill not be met by the
STU/Discom. This connectivity can atso be achieved through a
shared line with any agency or any existing line of Discom or
STU, provided the ene.gy accounts are bifurcated and clearly
demarcated for the power generated at solar project and are
issued by the STU/SLDC concerned.
iv. The SPD may, however, shift Interconnection point closer to his
Project if 33 kV substation comes closer to the project during the
tenure of the PPA provided that the interconnection sha be
maintained at 33 KV or above and energy at the Solar project is
clearly demarcated for the power generated at Solar project and
energy accounts are issued by the STU/SLDC concerned. The
costs associated with this arrangement will also be borne by the
SPD includjng the wheeling charges and tosses up to the
Interconnection Point. The SPDS may decide to share the cost of
transmission charges and other associated charges from the
Pooling Point up to the Interconnection point, amongst
themselves.
v. ln case of Bidding Consortium, jf the STU connectivity letter js in
the name of non-Lgad lrember, the same shall be accebted
against application of one Project only and would be required to
be kansferred to the Project Company befofe signing of ppA.
This issues with the approval of competent authority.
Meticulous compliance of the above may be ensured by a the field
officers.
nf6 xf{s ?i:/_._9}4929_.lDD/sR-67
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for EIC/Commercial,
PSPCL, Patiala.
flr$: 8.6.2015
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9. Ombudsman. Electricity punjab 66 KV Grid Sub Stn. ptot no. A_2.
lndustria, Area.
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SAS Nagaf ( I/ohatr)_160055
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12. ChiefAdministfa tion & tR, pSpCL. patiata.
13. !u fi+ro? €ntrae, fma FTa'd, Lfbat'6'
14. ChiefAuditor, PSPCL. patiata.
'15. Chief Engineer / ARR & TR, pSpCL, patiata.
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18. Dy.CE/Sales-|, Dy.CE/Sates-2andDy.CElBilting, pSpCL
'19. AllAddiSEs / Sr.Xens / AEES under Commercjal organization, pSpCL.
20. This circular can be downJoaded from pSpCL website (www.pspct.in).
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