TAMIL NADU GENERATION AND DISTRIBUTION …

1 TAMIL nadu GENERATION AND DISTRIBUTION CORPORATION LTD., (Technical Branch) ** O/o. Chief Engineer/Commercial, Chennai 2. , Sub: Instructions for issue of NOC to Open Access Consumers and Monitoring the existing OA consumers Reg. ** I. In order to streamline and to bring in uniformity through out the state in handling open access consumers the following instructions are issued for strict adherence with immediate effect. i. The HT/EHT consumers applying for open access shall be scrutinized as per TNERC open access regulations before issue of NOC. All requirements are to be confirmed before issue of NOC.

2 Ii. The TOD meters installed in the open access consumers shall be changed to 15 minutes demand integration period (DIP) from 30 minutes with immediate effect for existing open access consumers and for new open access consumers the same shall be changed before resetting the meter upon receipt of open access approval from operation wing. The SE/EDC has to obtain a confirmation report from the MRT wing to the effect that metering system is in order in compliance with existing codes of TNERC. This is a temporary measure till the OA consumers install metering system with ABT meter & associated CT/PT as per CEA regulations. An undertaking to this effect shall be obtained from the intending OA consumers by stipulating a period of 4 weeks.

3 II. The following procedures shall be followed while implementing the above: 1. The consumer has to provide the metering system with CT and PT of class accuracy and with ABT meter with class accuracy purchased at his own cost in addition to the existing metering arrangement. No OA consumer shall be permitted to draw OA power without this metering arrangement. 2. The ABT meter shall have communication facility and necessary software for BCS and CMRI shall be at his own cost. 3. The CTs and PTs procured by the consumer should confirm to the Board s specifications and necessary testing at the manufacturers works shall be carried out by the Board`s Engineer before despatch with his own cost.

4 4. The ABT meter shall comply with the specifications of the Board and shall be tested at ETDC/CEIG before installation at his own cost. 5. The CT/PTs and meters shall be calibrated periodically as per CEA regulations at his cost. III. The SE/EDCs shall ensure the healthiness of the Sub-station feeder meter in case of OA consumers with dedicated feeder before issuing NOC. The healthiness of the feeder meter shall be ensured by the respective EE/MRT and shall confirm the healthiness of the feeder meters. If any defect found at the latter stage the respective filed officer shall be fixed with the responsibility in this regard. IV. The copy of open access approval received by SE/EDC from Operation Wing is to be furnished to EE/MRT.

5 V. The EE/MRT concerned shall analyze the data (load profile) of the open access consumer as and when received from the field and verify for any violation in terms of demand and energy with respect to third party power purchase. The DFC/EDC shall ensure from MRT Wing on overdrawal details done by open access consumers before serving the bill. (The overdrawal confirmation is to be done by verifying the load profile but not on the billing parameters). VI. The SE/EDC concerned shall seek details of scheduled power of the generators (load profile data downloaded from the meter) for the period from SE/EDC where the generators are located with whom the open access consumers in their circle are in agreement for sale of power.

6 Vii. The NOC should be issued from SE/EDCs for every transaction(applicable for Short Term) and should include that the metering system provided in the OA consumer premises complies with CEA regulation. (Class of accuracy for meter, CTs & PTs should be class at the OA consumer s cost). VIII. The agreement entered upon between Generator & OA consumer shall incorporate a condition that scheduling of power on 15 minutes block shall be done by the Generator on day ahead basis, along with confirmation that the scheduling shall be based on ABT meter. IX. Consumers connected to mixed load feeders (Domestic, Commercial & Industrial) seeking open access NOC/Approval should agree to R&C measures imposed by TANTRANSCO & TANGEDCO.

7 X. In case of purchase made by open access consumers through Power exchanges, the concerned EDC shall obtain the schedule of the day on a day ahead basis from the operation wing and copy of the same furnished to EE/MRT. XI. With regard to consumers banking wind energy the concerned SE/EDC of the OA consumer shall seek the down load data from the SE/EDC wherein the wind generators are located. The concerned SE/EDCs where the wind mill generators are located shall arrange to download the meter data for the banking period and send the same to the respective SE/EDCs where the consumer is located. A soft copy of the same shall be sent in advance to the concerned SE/EDCs.

8 XII. The OA consumers shall be penalized for every incident of violation in terms of overdrawal of demand and energy as per load survey data. Penalising only once for a billing month based on billing parameters shall be dispensed with immediate effect. XIII. All Open Access consumers shall furnish an undertaking as per the revised format enclosed herewith, which will be mandatory with effect from XIV. All OA consumers shall be monitored effectively by the concerned SE/EDCs on continuous basis (minimum once in four days) by forming a team for surprise check in Division and circle level team. A weekly report on this should be communicated to Director/ DISTRIBUTION & Director/Operation.

9 The SE/EDCs, DFC/EDCs. EEs/O&M and MRT shall render full co-operation and conduct field level meetings at regular intervals and ensure that no overdrawal is done by the OA consumers as per the direction of Hon ble High Court, Madras. All necessary assistance to MRT wing shall be arranged by respective SE/EDC. The Regional CEs/SEs shall ensure that above directions are followed in true spirits and initiate appropriate action on erring officials as deemed fit. (By order of the Chairman cum Managing Director / TANGEDCO) Encl: as above (G.)

10 ANGAMUTHU) CHIEF ENGINEER/COMMERCIAL To All the Chief Engineers/ DISTRIBUTION /Region. Copy to all Superintending Engineers/ Electricity DISTRIBUTION Circles. Copy to the Superintending Engineer/ LD & GO Copy to the Superintending Engineer/Enforcement Copy to the Superintending Engineer/Power Purchase Copy submitted to the Director/ DISTRIBUTION Copy submitted to the Director (Operation)/TANTRANSCO Copy submitted to the Director/ GENERATION Copy submitted to the Director/Finance Copy to all the Chief Engineers of Headquarters. Copy to the Chief Financial Controller/ Revenue, Financial Controller/ Revenue. Copy to the CIAO, Legal Cell. UNDERTAKING FOR SHORT TERM PURCHASE/SALE OF POWER UNDER OPEN ACCESS I/ We, name on behalf of M/s name of the firm , A/c No.