Tariff Regulations
Odisha
The Odisha Electricity Regulatory Commission has issued the Terms and Conditions for determination of Transmission Tariff regulations dated 21st October 2014. The regulation is effective from April 1, 2014 to March 31, 2019. The primary purpose of the regulations is to determine the Aggregate Revenue Requirement (ARR) for the Transmission licensees.
Odisha Electricity Grid Code, 2015
Resolution By
OERC
Notification No. and date
967---Engg. 17/2005-(Vol. VIII) dated 11.08.2015
Objectives
1. To provide a document that explains the boundary between the Transmission Licensee and other Users, who are connected to/or using the State Transmission System
2. To establish the procedures for operations of the State Transmission System. It lays down both the information requirements and the procedures governing
3.To permit the planning, development, maintenance and operation to facilitate an efficient, co-ordinated and economical system for the transmission and supply including trading of electricity in the State.
4. To provide facilitation for beneficial trading of electricity by defining a common basis of operation of the State Transmission System (STS), applicable to all the Users of the STS.
4. To provide facilitation for the development of renewable energy sources by specifying the technical and commercial aspects for integration of these resources into the State grid.
[clause 1.2]
2. To establish the procedures for operations of the State Transmission System. It lays down both the information requirements and the procedures governing
3.To permit the planning, development, maintenance and operation to facilitate an efficient, co-ordinated and economical system for the transmission and supply including trading of electricity in the State.
4. To provide facilitation for beneficial trading of electricity by defining a common basis of operation of the State Transmission System (STS), applicable to all the Users of the STS.
4. To provide facilitation for the development of renewable energy sources by specifying the technical and commercial aspects for integration of these resources into the State grid.
[clause 1.2]
Regulations called as
Odisha Grid Code Regulations, 2015, in short OGC
Planning Code for Intra-state Transmission- Introduction
1. The Planning Code specifies the policy and procedures to be applied in planning of State Grid and the regional links.
2. It identifies the method for data submissions by Users to the STU for the planning and development of the Transmission System.
3. It also specifies the technical and design criteria and procedure to be applied by the STU in the planning and development of the Transmission System.
[clause 3.1]
2. It identifies the method for data submissions by Users to the STU for the planning and development of the Transmission System.
3. It also specifies the technical and design criteria and procedure to be applied by the STU in the planning and development of the Transmission System.
[clause 3.1]
Planning Code for Intra-state Transmission- Objective
1. To enable the STU in consultation with Users, to provide an efficient, co-ordinated, secure and economical Transmission System in order to satisfy requirement of future demand.
2. To provides methodology and information exchange amongst Users STU/SLDC and CTU/RLDC, RPC, NLDC and CEA in planning and development of the STS.
3. To imposes a time scale, for exchange of necessary information between the STU and Users.
[clause 3.2]
2. To provides methodology and information exchange amongst Users STU/SLDC and CTU/RLDC, RPC, NLDC and CEA in planning and development of the STS.
3. To imposes a time scale, for exchange of necessary information between the STU and Users.
[clause 3.2]
Planning Code for Intra-state Transmission- Scope
The Planning Code applies to STU, other Transmission Licensees, the State Generating Station, IPPs, IPPs selling power on merchant basis and all other Users, connected to and/or using and involved in developing the State Transmission System.
[clause 3.3]
[clause 3.3]
Planning Code for Intra-state Transmission- Planning Philosophy
1. The STU shall carry out planning process from time to time as per the requirement for identification of major State Transmission System, including the transmission system associated with generation projects and system strengthening schemes such as Perspective plan formulated by CEA, EPS, Transmission Planning Criteria and guidelines issued by the CEA,NEP, ERC (Terms and Conditions for Open Access) Regulations, 2005 etc.
2. The State transmission proposals including systemstrengthening scheme identified on the basis of the planning studies would be discussed, reviewed and finalised by the STU in consultation with CTU, State Government, GENCO, RPC, licensees etc.
3. In case long-term Open Access in State Transmission System cannot be allowed without system strengthening, the applicant may request STU to carry out system studies to identify strengthening requirement and its cost estimates.
4. All Users and Agencies will supply to the STU, the desired planning data from time to time to enable to formulate and finalize its plan.
5. The plan reports shall contain a Chapter on additional transmission requirement, which may include not only State transmission lines but also additional equipment such as transformer, capacitors, reactors etc.
7. The plan report shall also indicate the action taken to fulfill the additional requirement and actual progress made on new schemes.
8. Based on Plans prepared by the CTU, STU shall have to plan their systems to further evacuate power from the ISTS/STS and to optimize the use of integrated
transmission network.
9. In case of long-term Open Access applications requiring any strengthening in the Distribution System to absorb/evacuate power beyond STS, the STU shall coordinate with the concerned Distribution Company(s).
[clause 3.4]
2. The State transmission proposals including systemstrengthening scheme identified on the basis of the planning studies would be discussed, reviewed and finalised by the STU in consultation with CTU, State Government, GENCO, RPC, licensees etc.
3. In case long-term Open Access in State Transmission System cannot be allowed without system strengthening, the applicant may request STU to carry out system studies to identify strengthening requirement and its cost estimates.
4. All Users and Agencies will supply to the STU, the desired planning data from time to time to enable to formulate and finalize its plan.
5. The plan reports shall contain a Chapter on additional transmission requirement, which may include not only State transmission lines but also additional equipment such as transformer, capacitors, reactors etc.
7. The plan report shall also indicate the action taken to fulfill the additional requirement and actual progress made on new schemes.
8. Based on Plans prepared by the CTU, STU shall have to plan their systems to further evacuate power from the ISTS/STS and to optimize the use of integrated
transmission network.
9. In case of long-term Open Access applications requiring any strengthening in the Distribution System to absorb/evacuate power beyond STS, the STU shall coordinate with the concerned Distribution Company(s).
[clause 3.4]
Planning Code for Intra-state Transmission- Criterion
1. The planning criteria are based on the security philosophy on the security philosophy as per the Transmission Planning Criteria and other guidelines as given by CEA.
2. The State Transmission System shall be capable of withstanding against ontingency outages i.e. Outage of a 132kV S /C line, 220 kV S/C line, 400 kV S/C line, 765 kV S/C Line and single Interconnecting Transformer without necessitating load shedding or rescheduling of generation during Steady State Operation.
3. The IaSTS shall be capable of withstanding and be secured against contingency outages i.e. Outage of a 400 kV S/C line with TCSC, 400 kV D/C line, 765 kV S/C line with series compensation and both pole of HVDC Bipole line without necessitating load shedding but could be with rescheduling of generation during steady state operation.
4. In all substations (132 kV and above), at least two transformers shall be provided.
5.STU shall carry out planning studies for reactive power compensation including reactive power compensation requirement at the existing generator's/ bulk consumer's switchyard and for connectivity of new generator/bulk consumer to the state transmission system.
[clause 3.5]
2. The State Transmission System shall be capable of withstanding against ontingency outages i.e. Outage of a 132kV S /C line, 220 kV S/C line, 400 kV S/C line, 765 kV S/C Line and single Interconnecting Transformer without necessitating load shedding or rescheduling of generation during Steady State Operation.
3. The IaSTS shall be capable of withstanding and be secured against contingency outages i.e. Outage of a 400 kV S/C line with TCSC, 400 kV D/C line, 765 kV S/C line with series compensation and both pole of HVDC Bipole line without necessitating load shedding but could be with rescheduling of generation during steady state operation.
4. In all substations (132 kV and above), at least two transformers shall be provided.
5.STU shall carry out planning studies for reactive power compensation including reactive power compensation requirement at the existing generator's/ bulk consumer's switchyard and for connectivity of new generator/bulk consumer to the state transmission system.
[clause 3.5]
Planning Code for Intra-state Transmission- Planning Data
1.The Distribution Licensees/State generating companies/ IPPs/licensees are to supply two types of data to STU:
1.1.Standard Planning Data which consists of details, that are expected to be normally sufficient for the STU to investigate the impact on the STS due to User development. Standard planning data covering (a) preliminary project planning data (b) committed project planning data and (c) connected planning data should be furnished by the Distribution Licensees and Generating companies connected to the STS.
1.2. Detailed planning data which consist of additional, more detailed data not normally expected to be required by STU to assess the impact of User development on the STS. The Users of STS shall furnish this data as and when requested by STU.
[clause 3.6]
1.1.Standard Planning Data which consists of details, that are expected to be normally sufficient for the STU to investigate the impact on the STS due to User development. Standard planning data covering (a) preliminary project planning data (b) committed project planning data and (c) connected planning data should be furnished by the Distribution Licensees and Generating companies connected to the STS.
1.2. Detailed planning data which consist of additional, more detailed data not normally expected to be required by STU to assess the impact of User development on the STS. The Users of STS shall furnish this data as and when requested by STU.
[clause 3.6]
Planning Code for Intra-state Transmission- Implementation of Transmission Plan
1. The actual program of implementation of transmission lines, interconnecting transformers, reactors/capacitors and other transmission elements will be determined by STU in consultation with the concerned Agencies/Users.
2. The Transmission Licensee through the concerned Agency shall ensure the completion of these works in the required time frame.
[clause 3.7]
2. The Transmission Licensee through the concerned Agency shall ensure the completion of these works in the required time frame.
[clause 3.7]
Connection Code/ Grid connectivity- Introduction
1. Connection Conditions specify the minimum technical and design criteria, which shall be complied with by STU/Transmission Licensee and any Agency connected to or seeking the connection to the State Transmission System.
2. Such agencies, connected to or seeking the connection to the State Transmission System shall comply with CEA (Technical Standards for connectivity to the Grid) Regulations, 2007.
[clause 4.1]
2. Such agencies, connected to or seeking the connection to the State Transmission System shall comply with CEA (Technical Standards for connectivity to the Grid) Regulations, 2007.
[clause 4.1]
Connection Code/ Grid connectivity- Objective
1. To ensure the safe operation, integrity and reliability of the grid.
2. That the basic rules for connectivity are complied with in order to treat all users in a non-discriminatory manner.
3. To specify minimum design criteria, to assist Users in their requirement to comply with licence obligations
4. To make aware in advance, to the person seeking a new connection to the grid , that his system has to meet standards and conditions for being integrated into the grid.
5. To provide ownership and responsibility for all the equipments are clearly specified in a schedule (Site Responsibility Schedule) for every site, where a connection is made.
[clause 4.2]
2. That the basic rules for connectivity are complied with in order to treat all users in a non-discriminatory manner.
3. To specify minimum design criteria, to assist Users in their requirement to comply with licence obligations
4. To make aware in advance, to the person seeking a new connection to the grid , that his system has to meet standards and conditions for being integrated into the grid.
5. To provide ownership and responsibility for all the equipments are clearly specified in a schedule (Site Responsibility Schedule) for every site, where a connection is made.
[clause 4.2]
Connection Code/ Grid connectivity- Scope
1. The Connection Conditions apply to all STU/SGSs and any other User/ Licensee connected to and involved in developing the State Transmission System.
2. This Connection Code also applies to all Agencies, which are planning to generate/transmit/utilise and/or are generating / transmitting / utilising energy to/from the State Transmission System.
3. These conditions shall apply to all new connections. All the existing Users shall modify their systems for complying with this Section within two years from the date of this Code comes into effect.
[clause 4.3]
2. This Connection Code also applies to all Agencies, which are planning to generate/transmit/utilise and/or are generating / transmitting / utilising energy to/from the State Transmission System.
3. These conditions shall apply to all new connections. All the existing Users shall modify their systems for complying with this Section within two years from the date of this Code comes into effect.
[clause 4.3]
Connection Code/ Grid connectivity- Procedure for connection
1. Any Agency seeking to establish new or modified arrangements for connection to and/or use of the Transmission System shall submit the following report, data and undertaking along with an application to the Transmission Licensee:
1.1. Report stating purpose of proposed connection and/or modification, connection site, Transmission Licensee to whose system connection is proposed Connection Point, description of Apparatus to be connected or modification to Apparatus already connected and Beneficiaries of the proposed connection.
1.2. Data as applicable
1.3. Construction schedule and target completion date.
1.4. An undertaking that the User shall abide by the OGC, IEGC and provisions of IE Rules and various standards
2. In case of the existing connections between State Transmission System and State Generating Station, a relaxation of one year in respect of theConnection Conditions is allowed.
3. The Transmission Licensee/STU shall normally make a formal offer to the User within one month of receipt of the application
4. The offer shall specify and take into account any works required for the extension or reinforcement of the Transmission System to satisfy the requirements of the connection application and for obtaining statutory clearances.
5.All offers (other than preliminary offers) including revised offers shall remain valid for sixty days of issue of offer.
6. In the event of the offer becoming invalid or not being accepted by any User within the validity period, no further action shall be taken by the Transmission Licensee / STU on the connection applications.
[clause 4.4]
1.1. Report stating purpose of proposed connection and/or modification, connection site, Transmission Licensee to whose system connection is proposed Connection Point, description of Apparatus to be connected or modification to Apparatus already connected and Beneficiaries of the proposed connection.
1.2. Data as applicable
1.3. Construction schedule and target completion date.
1.4. An undertaking that the User shall abide by the OGC, IEGC and provisions of IE Rules and various standards
2. In case of the existing connections between State Transmission System and State Generating Station, a relaxation of one year in respect of theConnection Conditions is allowed.
3. The Transmission Licensee/STU shall normally make a formal offer to the User within one month of receipt of the application
4. The offer shall specify and take into account any works required for the extension or reinforcement of the Transmission System to satisfy the requirements of the connection application and for obtaining statutory clearances.
5.All offers (other than preliminary offers) including revised offers shall remain valid for sixty days of issue of offer.
6. In the event of the offer becoming invalid or not being accepted by any User within the validity period, no further action shall be taken by the Transmission Licensee / STU on the connection applications.
[clause 4.4]
Connection Code/ Grid connectivity- Connection Agreement
A Connection Agreement shall include, as appropriate, within its terms and conditions the following:
1. A condition requiring both parties to comply with the OGC;
2. Details of connection, technical requirements with specific references to reactive power compensation/operation of Generating Units and Power Station.
3. Details of any capital related payments arising from necessary reinforcement or extension of the system, data communication, RTU etc. and demarcation of the same between the concerned parties
4. A Site Responsibility Schedule
5. General philosophy, guidelines etc.
[clause 4.5]
1. A condition requiring both parties to comply with the OGC;
2. Details of connection, technical requirements with specific references to reactive power compensation/operation of Generating Units and Power Station.
3. Details of any capital related payments arising from necessary reinforcement or extension of the system, data communication, RTU etc. and demarcation of the same between the concerned parties
4. A Site Responsibility Schedule
5. General philosophy, guidelines etc.
[clause 4.5]
Connection Code/ Grid connectivity- Important technical requirements for connectivity to the grid
1. Rated frequency of the system shall be 50.0 Hz and shall normally be controlled within the limits as per regulations /Standards
2. The variation of voltage may not be more than the voltage range specified in the regulations / Standards.
3. The limits of harmonics shall be maintained as per CEA‟s notification of Grid Standards from time to time.
4. Reactive power compensation and/or other facilities should be provided by Transmission Licensee and Distribution Licensees as far as possible.
5. 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 SLDC, under normal and abnormal conditions.
6. Recording instruments such as Data Acquisition System/ Disturbance Recorder/ Event Logger/ Fault Locator (including time synchronization equipment) shall be provided in the State Transmission System
7. 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.
[clause 4.7-4.15]
2. The variation of voltage may not be more than the voltage range specified in the regulations / Standards.
3. The limits of harmonics shall be maintained as per CEA‟s notification of Grid Standards from time to time.
4. Reactive power compensation and/or other facilities should be provided by Transmission Licensee and Distribution Licensees as far as possible.
5. 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 SLDC, under normal and abnormal conditions.
6. Recording instruments such as Data Acquisition System/ Disturbance Recorder/ Event Logger/ Fault Locator (including time synchronization equipment) shall be provided in the State Transmission System
7. 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.
[clause 4.7-4.15]
Connection Code/ Grid connectivity- Schedule of assets of Regional Grid
STU/Transmission Licensee shall submit annually to OERC by 30th September each year a schedule of transmission assets, which constitute the State grid as on 31st March of that year indicating ownership on which SLDC has operational control and responsibility.
[clause 4.14]
[clause 4.14]
Corrigendum/ Amendment, if any
No