Notifications issued by the Heads of Departments, which are of interest to a Section of the public. District Collectors - Tamil Nadu Panchayats Act - State Election Commission Notification - Removal of Panchayat Chairman, Tamil Nadu Legal Services Notification - Tamil Nadu Electricity Regulatory Commission - Government Examination Loss of Certificates. TAMIL NADU ELECTRICITY REGULATORY COMMISSION, CHENNAI.--Amendments to the Tamil Nadu Electricity Regulatory Commission (Terms and Conditions for determination of Tariff) Regulations, 2005.--Nomination of member of the State Advisory Committee - Notification No. VI(2)/16/2025.--(Notification No. TNERC/TR/5-5/2025, dated 01-07-2025)(Lr.No. TNERC/Legal/1368/D.No.906/2025.)--Notification No. VI(2)/17/2025.-- Notification No.TNERC/SACR/2-60 dated 08.07.2025. Lr.No. TNERC/Legal/1369/D.No.907/2025.

© [Regd. No. TN/CCN/467/2012-14.

GOVERNMENT OF TAMIL NADU [R. Dis. No. 197/2009.

2025 [Price: Rs. 4.00 Paise.

No. 30] CHENNAI, WEDNESDAY, JULY 30, 2025 Aadi 14, Visuvaavasu, Thiruvalluvar Aandu–2056

Part VI—Section 2

Notifications of interest to a section of the public

issued by Heads of Departments, etc.

NOTIFICATIONS BY HEADS OF DEPARTMENTS, ETC.

CONTENTS

Pages.

TAMIL NADU ELECTRICITY REGULATORY COMMISSION, CHENNAI.

Amendments to the Tamil Nadu Electricity Regulatory Commission (Terms and Conditions for determination of Tariff) Regulations, 2005. .. .. .. .. .. .. .. .. 80-85 Nomination of member of the State Advisory Committee. .. .. .. .. .. .. 86-88 DTP—VI-2 (30)

[79]80 TAMIL NADU GOVERNMENT GAZETTE [Part VI—Sec. 2

NOTIFICATIONS BY HEADS OF DEPARTMENTS, ETC.

TAMIL NADU ELECTRICITY REGULATORY COMMISSION, CHENNAI.

Amendments to the Tamil Nadu Electricity Regulatory Commission (Terms and Conditions for

determination of Tariff) Regulations, 2005.

(Notification No. TNERC/TR/5-5/2025, dated 01-07-2025)

(Lr.No. TNERC/Legal/1368/D.No.906/2025)

No. VI(2)/16/2025.

In exercise of the powers conferred by section 61 of the Electricity Act, 2003 (Central Act 36 of 2003) read with section 181 of the said Act and all other powers enabling it in this behalf, the Tamil Nadu Electricity Regulatory Commission hereby makes the following amendments to the Tamil Nadu Electricity Regulatory Commission (Terms and conditions for determination of Tariff) Regulations, 2005 (hereafter referred to as "the Principal Regulations") and the draft of the same having been previously published as required by sub-section (3) of section 181 of the said Act.

Amendments

(i) These Regulations may be called the "Tamil Nadu Electricity Regulatory Commission (Terms and conditions for determination of Tariff) (Amendment) Regulations, 2025".

(ii) These Regulations shall come into force on the date of publication in the Tamil Nadu Government Gazette.

1. Amendment to Regulation 37 of the Principal Regulations:

1.1 The clause (vii) in Regulation 37 of the Principal Regulations notified vide Notification No. TNERC/TR/5/3, dated 26-05-2021 shall be read as clause (viii);

1.2. In Regulation 37 of the Principal Regulations, for the clause (viii), the following clause shall be substituted, namely:

"(viii) Impact of Part Load Operation on performance of Thermal Generating Stations:

where any of the Generating station is directed by the State Load Despatch centre to operate below Target plant

availability factor but at or above technical minimum, such generating station may be compensated depending on the

average unit loading duly taking into account the forced outages, planned outages, PLF, generation at generator terminal,

energy sent out ex-bus, number of start-stop, secondary fuel oil consumption and auxiliary energy consumption, in due

consideration of actual and normative operating parameters of station heat rate and auxiliary energy consumption on

monthly basis duly supported by relevant data verified by SLDC.

1. Coal/lignite based thermal generating stations:

i) Impact on the station heat rate:

The applicable factors for unit heat rate degradation at part loading for sub-critical and super-critical units are as

follows:

ii) Impact on auxiliary energy consumption:

The admissible additional auxiliary energy consumption values at part loading of coal / lignite based thermal generating stations are as follows:

Provided that in case of additional auxiliary consumption arised due to implementation of DeSOx system and/or

DeNOx system, the generation company concerned may file appropriate petition before the Commission for revision of

parameters.

iii) Impact on Specific Fuel Oil Consumption:

Considering flexible operation requirement of coal based thermal stations in view of capacity addition from Renewable

sources, additional specific oil consumption of 0.2 ml/kWh is provided for units operating in 40-55% average loading.

2. Gas / liquid fuel based thermal generating stations:

i) Impact on station heat rate:

The degradation of module / plant gross heat rate for gas / liquid fuel based thermal generating stations in Combined

Cycle Gas Turbine mode of operation are as below:

ii) The degradation of module / plant heat rate for gas/liquid fuel based thermal generating stations in Open Cycle

mode of operation are as below:

iii) Impact on auxiliary energy consumption:

The additional auxiliary energy consumption admissible at part loading of gas / liquid fuel based thermal generating

station is proposed to be considered as below:

1.3. In Regulation 37 of the Principal Regulations, after the clause (viii), the following clause shall be added, namely:

(ix) Transit losses of coal:

For coal and lignite, the transit and handling losses shall be as per the following norms:

Provided that in the case of any combination of the above modes of transportation, the transit and handling losses shall be calculated on pro-rata basis using the formula given below:

Transit loss of coal / lignite based stations (%) = 0.2% x (Percentage of coal transported through pit-head source) + 0.8% x (Percentage of coal transported through All Rail Route) + 1.0% x (Percentage of coal transported through Road cum Rail or Sea Route or other multi-modal transportation system involving multiple trans-shipments).

Provided further that in case of imported coal, the transit and handling losses applicable for pit-head station shall apply.

(By Order of the Tamil Nadu Electricity Regulatory Commission)

Chennai - 600 032, 10th July 2025.

S. JOHN SUNDARARAJ, Secretary (In-charge), Tamil Nadu Electricity Regulatory Commission.

Explanatory Statement

The amendment to the TNERC (Terms and conditions for determination of Tariff) Regulations, 2005 is made by including the new items namely "(ix) Impact of Part Load Operation on performance of Thermal Generating Stations and (x) Transit losses of coal" due to the following reasons:

1. Tamil Nadu being the RE rich state and further potential for development of RE power projects, has to further promote development of RE power within the State in line with the RPO trajectory notified by the Ministry of Power. Accordingly, the Commission had earlier notified the Tamil Nadu Electricity Regulatory Commission (Renewable Energy Purchase Obligation) Regulations, 2023.

2. Further, it is noted that the power generation mix is rapidly shifting towards a more significant share of Renewable Energy in our country. Further, the Government of India's vision is to achieve Net Zero emissions by 2070, in addition to attain the short-term target of achieving 500 GW capacity by the year 2030.

3. Tamil Nadu is being the RE rich state, the generated RE power should be absorbed into the grid without any curtailment. To absorb such RE power, which are infirm in nature, the existing State owned thermal power plants should be ramped up and down very frequently, which results in increased station heat rate, auxiliary consumption, specific fuel consumption, etc. Most of the State owned thermal power plants operate at lesser PLF than the normative PLF of 80%. Therefore, it is necessary either to compensate these State owned Power Plants or fixing some relaxed technical parameters to these power plants.

4. It is pertinent to note that the Central Electricity Authority (CEA) vide their letter dated 15-03-2024 addressed to the Hon'ble CERC suggested "relaxed operational parameters" for the thermal power stations being operated at part load.

5. The TANGEDCO in their recent true-up petitions filed before the Commission for the year 2022-23 has requested to consider the actual operating parameters since the same is exceeded the normative operating parameters.

6. In order to safeguard the interest of the State owned Thermal Power Plants, the Commission has made this amendment duly considering the parameters suggested by the CEA.

(By Order of the Tamil Nadu Electricity Regulatory Commission)

S. JOHN SUNDARARAJ, Chennai - 600 032, 10th July 2025.

Secretary (In-charge),

Tamil Nadu Electricity Regulatory Commission.

Statements showing existing provisions and provisions as amended

Amendment to Tamil Nadu Electricity Regulatory Commission

(Terms and conditions for determination of Tariff) Regulations, 2005

(By order of the Tamil Nadu Electricity Regulatory Commission)

S. JOHN SUNDARARAJ, Chennai - 600 032, 10th July 2025.

Secretary (In-charge),

Tamil Nadu Electricity Regulatory Commission.

Nomination of member of the State Advisory Committee

(Notification No.TNERC/SACR/2-60 dated 08.07.2025)

(Lr.No. TNERC/Legal/1369/D.No.907/2025)

No. VI(2)/17/2025.

In exercise of the powers conferred on it by sub-section (1) and (2) of Section 87 of the Electricity Act, 2003 (Central Act No.36 of 2003) and as per Regulation 7 of the TNERC State Advisory Committee Regulations, 2004 the Tamil Nadu Electricity Regulatory Commission hereby nominate the following person as Member of the State Advisory Committee for the area of 'Labour' for the period of three years with immediate effect:

Further, consequent to issuance of G.O. (Ms.) No.6, Energy (B2) Department, dated 24.01.2024, the erstwhile Tamil Nadu Generation and Distribution Corporation Limited (TANGEDCO) was restructured into separate Generating and Distribution Companies, under the Companies Act, 2013. Post this, it has been renamed as 'Tamil Nadu Power Distribution Corporation Limited' (TNPDCL). As such, the erstwhile designation of Chairman & Managing Director/TANGEDCO has to be revised as Chairman & Managing Director/TNEB limited & TNPDCL, Chairman/ TNPGCL, TANTRANSCO & TNGECL.

Accordingly, the following existing designation is revised for the area of interest of 'Distribution Licensee' as follows:

Further, consequent to issuance of G.O. (Ms.) No.7, Energy (B2) Department, dated 24.01.2024, Tamil Nadu Energy Development Agency (TEDA) has been merged with newly formed Tamil Nadu Green Energy Corporation Limited (TNGECL) under the Companies Act, 2013 by integrating Renewable Energy wing of TANGEDCO. As such the erstwhile post of Chairman & Managing Director/TEDA cease to exist and Managing Director/TNGECL is entrusted with the functions of TNGECL.

Accordingly, the following existing designation is revised for the area of interest of 'New and Renewable Sources of Energy' as follows:

(By Order of the Tamil Nadu Electricity Regulatory Commission)

Chennai - 600 032, 9th July 2025.

S. JOHN SUNDARARAJ, Secretary (In-charge), Tamil Nadu Electricity Regulatory Commission.

தமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணையம், சென்னைதமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணையம், சென்னை

(அறிவிக்கை எண்.த.மி.ஒ.ஆ/மா.ஆ.கு.ஒ/2-60, நாள்: 08.07.2025)

(Lr.No. TNERC/Legal/1369/D.No.907/2025)

2003 ஆம் ஆண்டு மின்சாரச் சட்டத்தின் (மத்தியச் சட்டம் 36/2003) 87 ஆம் பிரிவின் (1) மற்றும் (2) ஆம் உட்பிரிவு மற்றும் 2004 ஆம் ஆண்டு தமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணைய – மாநில ஆலோசனைக் குழு ஒழுங்குமுறை விதிகளின், ஒழுங்குமுறை விதி 7 ஆகியவற்றினால் அதற்கு வழங்கப்பட்ட அதிகாரங்களையும் செலுத்தி, தமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணையம் பின்வரும் நபரை 'தொழிலாளர்' பிரதிநிதித்துவத்திற்கான மாநில ஆலோசனைக் குழுவின் உறுப்பினராக மூன்று ஆண்டு காலத்திற்கு உடனடியாக அமலுக்கு வரும் வகையில் நியமனம் செய்கிறது.

மேலும், 24.01.2024 தேதியிட்ட அரசாணை (Ms.) எண்.6, எரிசக்தி (B2) துறையின் வெளியீட்டின் விளைவாக, 2013 ஆம் ஆண்டு நிறுவனங்கள் சட்டத்தின் கீழ் முந்தைய தமிழ்நாடு மின் உற்பத்தி மற்றும் பகிர்மானக் கழக லிமிடெட் (TANGEDCO), தற்போது மின்உற்பத்தி மற்றும் பகிர்மான நிறுவனமாக தனித்தனியாகப் பிரிக்கப்பட்டது. இதன் பின்னர், 'தமிழ்நாடு மின் பகிர்மானக் கழக லிமிடெட்' (TNPDCL) என மறுபெயரிடப்பட்டது. இதன் காரணமாக, முந்தைய தலைவர் மற்றும் மேலாண்மை இயக்குநர்/TANGEDCO பதவியை, தலைவர் மற்றும் மேலாண்மை இயக்குநர், TNEB லிமிடெட் & TNPDCL, தலைவர்/TNPGCL, TANTRANSCO & TNGECL என திருத்தப்பட வேண்டும்.

அதன்படி, 'மின்பகிர்மான உரிமதாரரின்' பிரதிநிதித்துவத்திற்கான தற்போதைய பதவி பின்வருமாறு திருத்தப்படுகிறது:

மேலும், 24.01.2024 தேதியிட்ட அரசாணை (Ms.) எண்.7, எரிசக்தி (B2) துறையின் வெளியீட்டின் விளைவாக, 2013 ஆம் ஆண்டு நிறுவனங்கள் சட்டத்தின் கீழ், 'தமிழ்நாடு எரிசக்தி வளர்ச்சி முகமையானது' (TEDA), தற்போது TANGEDCO வின் புதுப்பிக்கத்தக்க எரிசக்தி பிரிவை ஒருங்கிணைத்து, புதிதாக உருவாக்கப்பட்ட தமிழ்நாடு பசுமை எரிசக்தி நிறுவனத்துடன் (TNGECL) ஒன்றிணைக்கப்பட்டுள்ளது. இதன் காரணமாக, முந்தைய தலைவர் மற்றும் மேலாண்மை இயக்குநர்/TEDA பதவி நீக்கப்பட்டு, தமிழ்நாடு பசுமை எரிசக்தி நிறுவனத்தின் செயல்பாடுகள் மேலாண்மை இயக்குநர்/TNGECL-லிடம் ஒப்படைக்கப்பட்டுள்ளன.

அதன்படி, 'புது மற்றும் புதுப்பிக்கத்தக்க எரிசக்தி ஆதாரங்கள்' என்ற பிரதிநிதித்துவத்திற்கான தற்போதுள்ள பதவி பின்வருமாறு திருத்தப்படுகிறது:

(தமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணையத்தின் ஆணைப்படி)

சென்னை 600 032, 2025 ஜூலை 9.

எஸ்.ஜான் சுந்தரராஜ்எஸ்.ஜான் சுந்தரராஜ்,, செயலாளர் (பொறுப்பு), தமிழ்நாடு மின்சார ஒழுங்குமுறை ஆணையம்.

PRINTED AND PUBLISHED BY THE COMMISSIONER OF STATIONERY AND PRINTING, CHENNAI ON BEHALF OF THE GOVERNMENT OF TAMIL NADU