PROVISIONS CONCERNING CONNECTIVITY
I.
Electricity Act, 2003
Direct mention of connectivity:
i.
Section 7. (Generating company and requirement for setting up of generating
station): Any generating company may establish, operate and maintain a
generating station without obtaining a licence under this Act if it complies with
the technical standards relating to connectivity with the grid referred to in
clause (b) of section 73.
ii.
Section 73(b) (Functions and duties of CEA) to specify the technical standards for
construction of electrical plants, electric lines and connectivity to the grid.
iii.
Section 177 2(e) : (Powers of Authority to make Regulations) on the technical
standards for construction of electrical plants and electric lines and connectivity
to the grid under clause (b) of section 73
Inference on power to grant connectivity
Section 38 (Central Transmission Utility and functions)
(2) The functions of the Central Transmission Utility shall be
(a) to undertake transmission of electricity through inter-State transmission
system; ……
(c) to ensure development of an efficient, co-ordinated and economical system
of inter-State transmission lines for smooth flow of electricity from generating
stations to the load centres; ……
II.
CEA (Technical Standards for Connectivity to the Grid) Regulations, 2007 and First
Amendment, 2013 (attached with mail)
III.
CEA (Technical Standards for Connectivity of the Distributed Generation Sources)
Regulations, 2013 (attached with mail)
IV.
CERC (Indian Electricity Grid Code) Regulations, 2010
i.
Regulation 2.5.3: In case of Inter-state Transmission System, Central
Transmission Utility shall be the nodal agency for the connectivity, long-term
access and medium –term open access . The procedure formulated by CTU and
approved by CERC and modalities in regard to connectivity, long term access and
medium-term open access shall be in accordance with the Central Electricity
Regulatory Commission (Grant of Connectivity, Long-term Access and Mediumterm Open Access in inter-State Transmission and related matters) Regulations,
2009, as amended from time to time.
ii.
Regulation 3.5(e): CTU shall carry out planning studies for Reactive Power
compensation of ISTS including reactive power compensation requirement at
the generator’s /bulk consumer’s switchyard and for connectivity of new
generator/ bulk consumer to the ISTS in accordance with Central Electricity
Regulatory Commission (Grant of Connectivity, Long-term Access and Mediumterm Open Access in inter-state Transmission and related matters) Regulations,
2009.
iii.
Part IV: Connection Code
Regulation 4.1:
CTU, STU and Users connected to, or seeking connection to ISTS shall comply
with Central Electricity Authority (Technical Standards for connectivity to the
Grid) Regulations, 2007 which specifies the minimum technical and design
criteria and Central Electricity Regulatory Commission (Grant of Connectivity,
Long-term Access and Medium term Open Access in inter-state Transmission
and related matters) Regulations, 2009.
Regulation 4.2
The objective of the code is as given below:
a) To ensure the safe operation, integrity and reliability of the grid.
b) That the basic rules for connectivity are complied with in order to treat all
users in a non-discriminatory manner.
c) Any new or modified connections, when established, shall neither suffer
unacceptable effects due to its connectivity to the ISTS nor impose unacceptable
effects on the system of any other connected User or STU.
d) Any person seeking a new connection to the grid is required to be aware, in
advance, of the procedure for connectivity to the ISTS and also the standards
and conditions his system has to meet for being integrated into the grid.
Regulation 4.3 Scope
The Connection code applies to CTU, STU and all Users connected to or seeking
connection to the ISTS, The Connection code does not apply to Generating Units,
transmission/distribution systems embedded in the intra-State systems, and not
connected to the ISTS. However, such entities shall abide by the CEA (Technical
Standards for connectivity to the Grid) Regulations, 2007, in order to ensure that
the integrated grid is not adversely affected.
Regulation 4.4 Procedure for connection
A User seeking to establish new or modified arrangement of connection to or for
use of ISTS, shall submit an application on standard format to CTU in accordance
with Central Electricity Regulatory Commission (Grant of Connectivity, Longterm Access and Medium-term Open 30 Access in inter-state Transmission and
related matters) Regulations, 2009. The CTU shall process the application for
grant of connectivity in accordance with these regulations
Regulation 4.5 Connection Agreement
A Connection agreement shall be signed by the applicant in accordance with the
Central Electricity Regulatory Commission (Grant of Connectivity, Long-term
Access and Medium-term Open Access in inter-state Transmission and related
matters) Regulations, 2009.
Regulation 4.6 Important Technical Requirements for Connectivity to the Grid
4.6.1 Reactive Power Compensation
a) Reactive Power compensation and/or other facilities shall be provided by
STUs, and Users connected to ISTS as far as possible in the low voltage systems
close to the load points thereby avoiding the need for exchange of Reactive
Power to/from ISTS and to maintain ISTS voltage within the specified range.
b) The person already connected to the grid shall also provide additional
reactive compensation as per the quantum and time frame decided by
respective RPC in consultation with RLDC. The Users and STUs shall provide
information to RPC and RLDC regarding the installation and healthiness of the
reactive compensation equipment on regular basis. RPC shall regularly monitor
the status in this regard.
4.6.2 Data and Communication Facilities
Reliable and efficient speech and data communication systems shall be provided
to facilitate necessary communication and data exchange, and
supervision/control of the grid by the RLDC, under normal and abnormal
conditions. All Users, STUs and CTU shall provide Systems to telemeter power
system parameter such as flow, voltage and status of switches/ transformer taps
etc. in line with interface requirements and other guideline made available by
RLDC. The associated communication system to facilitate data flow up to
appropriate data collection point on CTU’s system shall also be established by
the concerned User or STU as specified by CTU in the Connection Agreement. All
Users/STUs in coordination with CTU shall provide the required facilities at their
respective ends as specified in the Connection Agreement.
4.6.3 System Recording Instruments
Recording instruments such as Data Acquisition System/Disturbance
Recorder/Event Logging Facilities/Fault Locator (including time synchronization
equipment) shall be provided and shall always be kept 31 in working condition in
the ISTS for recording of dynamic performance of the system. All Users, STUs
and CTU shall provide all the requisite recording instruments and shall always
keep them in working condition.
4.6.4 Responsibilities for safety
CTU/STU and the concerned Users shall be responsible for safety in accordance
with Central Electricity Authority (Technical Standards for connectivity to the
Grid) Regulations, 2007 , Central Electricity Regulatory Commission (Grant of
Connectivity, Long-term Access and Medium-term Open Access in inter-state
Transmission and related matters) Regulations, 2009 and CEA (Safety
Requirements for construction, operation and maintenance of electrical and
electric lines) Regulations, 2008.
4.6.5 Cyber Security
All utilities shall have in place, a cyber-security framework to identify the critical
cyber assets and protect them so as to support reliable operation of the grid.
Regulation 4.7
International Connections to ISTS The procedure for international Connection to
ISTS and the execution of agreement for the same shall be determined by CTU in
consultation with CEA and Ministry of Power (MOP).
Regulation 4.8
Schedule of assets of Regional Grid CTU and other transmission licensees
granted license by CERC shall submit annually to CERC by 30th September each
year a schedule of transmission assets, which constitute the Regional Grid as on
31st March of that year indicating ownership on which RLDC has operational
control and responsibility.
V.
CERC (Grant of Connectivity, Long-term Access and Medium-term Open Access in interState Transmission and related matters) Regulations, 2009
Regulation 8: Grant of Connectivity
(1) The application for connectivity shall contain details such as, proposed geographical
location of the applicant, quantum of power to be interchanged, that is the quantum
of power to be injected in the case of a generating station including a captive
generating plant and quantum of power to be drawn in the case of a bulk consumer,
with the inter-State transmission system and such other details as may be laid down
by the Central Transmission Utility in the detailed procedure;
Provided that where after filing of an application, there has been any material
change in the location of the applicant or change in the quantum of power to be
interchanged with the inter-State transmission system, by more than 100 MW in the
case of applicant defined under Regulation 2(1) (b)(i) (a) and 40% of the Installed
capacity in the case of applicant defined under Regulation 2(1) (b) (i) (b) and 40% of
the aggregate Installed capacity in the case of applicant defined under Regulation
2(1) (b)(i) (c), such an applicant shall make a fresh application, which shall be
considered in accordance with these regulations.1
Provided further that the application by the applicant defined under Regulation 2(1)
(b)(i) (c) shall be considered by CTU only if all the generators, whose aggregate
capacity is connected at the single connection point, formalize a written agreement
among themselves that the lead generator shall act on behalf of all the generators
to undertake all operational and commercial responsibilities for all the collective
generators connected at that point in following the provisions of the Indian
Electricity Grid Code and all other Regulations of the Commission, such as grid
security, scheduling and dispatch, collection and payment/ adjustment of
Transmission charges, UI charges, congestion and other charges, etc., and submit a
copy of the agreement to the CTU, with the application of connectivity, along with a
copy to the respective RLDC in whose control area it is located.2
Provided further that the CTU shall suitably incorporate the requirement of formal
agreement amongst such generators in the detailed procedure and Connection
Agreement signed with such lead generator.3
Provided further that the application by the applicant defined under Regulation 2(1)
(b)(i) (e) shall be considered by CTU only if the existing generating station agrees to
act as the "Principal Generator" on behalf of the renewable energy generating
station(s) seeking connectivity through the electrical system of the generating
station and formalizes a written agreement/arrangement among them to undertake
all operational and commercial responsibilities for the renewable energy generating
station(s) in following the provisions of the Indian Electricity Grid Code and all other
regulations of the Commission, such as grid security, scheduling and dispatch,
collection and payment/adjustment of Transmission charges, UI charges, congestion
and other charges etc., and submit a copy of the agreement to the CTU, alongwith
the application for connectivity, with copy to the respective RLDC in whose control
area it is located.4
(2) On receipt of the application, the nodal agency shall, in consultation and through
coordination with other agencies involved in inter-State transmission system to be
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First Amendment, 2010
First Amendment, 2010
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First Amendment, 2010
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Third Amendment, 2013
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used, including State Transmission Utility, if the State network is likely to be used,
process the application and carry out the necessary interconnection study as
specified in the Central Electricity Authority (Technical Standards for Connectivity to
the Grid) Regulations, 2007.
(3) While granting connectivity, the nodal agency shall specify the name of the substation or pooling station or switchyard where connectivity is to be granted. In case
connectivity is to be granted by looping-in and looping-out of an existing or
proposed line, the nodal agency shall specify the point of connection and name of
the line at which connectivity is to be granted. The nodal agency shall indicate the
broad design features of the dedicated transmission line and the timeframe for
completion of the dedicated transmission line.
(4) The applicant and all Inter-State Transmission Licensees including the Central
Transmission Utility shall comply with the provisions of Central Electricity Authority
(Technical Standards for Connectivity to the Grid) Regulations, 2007.
(5) The applicant or inter-State transmission licensee, as the case may be, shall sign a
connection agreement with the Central Transmission Utility or inter-State
transmission licensee owning the sub-station or pooling station or switchyard or the
transmission line as identified by the nodal agency where connectivity is being
granted: Provided that in case connectivity of a generating station, including captive
generating plant or bulk consumer is granted to the inter-State transmission system
of an inter-State transmission licensee other than the Central Transmission Utility, a
tripartite agreement as provided in the Central Electricity Authority (Technical
Standards for Connectivity to the Grid) Regulations, 2007 shall be signed between
the applicant, the Central Transmission Utility and such inter-State transmission
licensee.
(6) The grant of connectivity shall not entitle an applicant to interchange any power
with the grid unless it obtains long-term access, medium-term open access or shortterm open access.
(7) Notwithstanding anything contained in Clause (6) of this Regulation and any
provision with regard to sale of infirm power in the Power Purchase Agreement, a
unit of a generating station including a captive generating plant which has been
granted connectivity to the inter-State Transmission System in accordance with
these regulations shall be allowed to inter-change infirm power with the grid during
the commissioning period, including testing and full load testing before the COD,
after obtaining prior permission of the concerned Regional Load Despatch Centre for
the periods mentioned as under:(a) Drawal of Start-up power shall not exceed 15 months prior to the expected date
of first synchronization and 6 months after the date of first synchronization.
(b) Injection of infirm power shall not exceed six months from the date of first
synchronization.
Provided that drawal of Start-up power shall be subject to payment of transmission
charges and the generator shall have to open a Revolving and Irrevocable Letter of
Credit issued by a Scheduled Bank equivalent to 2 months transmission charges prior
to drawal of Start-up power.
Provided further that the Start-up power shall not be used by the generating station
for the construction activities;
Provided further that RLDC shall stop the drawl of the Start-up Power in the
following events:
(a) In case, it is established that the Start-up power has been used by the Generating
Station for construction activity.
(b) In case of default by the Generating Station in payment of monthly transmission
charges to the transmission licensee for the drawal of Start-up power, on the
request of the transmission licensee.
Provided that the Commission may in exceptional circumstances, allow extension of
the period for inter-change of power beyond the period as prescribed in this clause,
on an application made by the generating station at least two months in advance of
completion of the prescribed period:
Provided further that the concerned Regional Load Despatch Centre while granting
such permission shall keep the grid security in view:
Provided also that the onus of proving that the interchange of infirm power from the
unit(s) of the generating station is for the purpose of commissioning activities,
testing and commissioning, shall lie with the generating company and the respective
RLDC shall seek such information on each occasion of interchange of power before
COD. For this, the generating station shall provide RLDC sufficient details of the
specific commissioning activity, testing and full load testing, its duration and
intended period of interchange, etc:
Provided also that the infirm power so interchanged by the unit(s) of the generating
plant shall be treated as deviation and the generator shall be 3 paid/charged for
such injection/drawal of infirm power in accordance with the provisions of the
Central Electricity Regulatory Commission (Deviation Settlement Mechanism and
related matters) Regulations, 2014, as amended from time to time or subsequent reenactment thereof.5
(8) An applicant may be required by the Central Transmission Utility to construct a
dedicated line to the point of connection to enable connectivity to the grid:
Provided that a thermal generating station of 500 MW and above and a hydro
generating station or a generating station using renewable sources of energy of
capacity of 250 MW and above, other than a captive generating plant, shall not be
required to construct a dedicated transmission line to the point of connection and
such station shall be taken into account for coordinated transmission planning by
the Central Transmission utility and Central Electricity Authority.6
Provided further that the construction of such dedicated transmission line may be
taken up by the CTU or the transmission licensee in phases corresponding to the
capacity which is likely to be commissioned in a given time frame after ensuring that
the generating company has already made the advance payment for the main plant
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Fourth Amendment, 2014
First Amendment, 2010
packages i.e. Turbine island and steam generator island or the EPC contract in case
of thermal generating station and major civil work packages or the EPC contract in
case of hydro generating stations for the corresponding capacity of the phase or the
phases to be commissioned, subject to a minimum of 10% of the sum of such
contract values:7
Provided also that the transmission charges for such dedicated transmission line
shall be payable by the generator even if the generation project gets delayed or is
abandoned.8
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Second Amendment, 2012
Second Amendment, 2012