TNERC NOTIFIES SOLAR TARIFF FOR FY 2017-18

 Tamil Nadu Electricity Regulatory Commission, in its latest order dated 28th March, 2017, has released the tariff values for solar projects in the state.

The tariff values are given as follows:

There has been a slight decrease in tariff for both solar PV and solar thermal this year as compared to the last FY. A comparison of the same is given as follows:

 

The order can be accessed here

Tamil Nadu Electricity Regulatory Commission Amendment to RPO Regulation, 2010

The Tamil Nadu Electricity Regulatory Commission recently came up with new amendment in the Renewable Purchase Obligation, 2010. The amendment was made in the regulation 3 after sub regulation (1) regarding the RPO percentages as mentioned below

The Commission orders that the Renewable Purchase Obligation specified for 2011-2012 in the sub regulation (1) shall be applicable for the years 2012-13, 2013-14 and 2014-15 to all the distribution licensees.

 

The Order can be accessed here.

Tamil Nadu Comprehensive Tariff Order on Wind Energy

The Tamil Nadu Electricity Regulatory Commission issued its fourth Comprehensive Tariff Order on Wind Energy on 30th March, 2016. The Commission’s last comprehensive tariff order was issued in 2012 for a control period for two years which was later extended up to the issuance of next comprehensive tariff order. This order would be applicable on purchase of wind energy by the Distribution Licensee from wind energy generators (WEGs).

Some of the key points of the order are as follows:

 

  • Wind Tariff: This year’s levelized wind tariff has been finalized out to be Rs 4.16/ unit which has increased from the previous tariff of Rs 3.59/ unit.
  • CDM Benefits: The order offers CDM benefits, which will be shared between the distribution licensee and the consumer on gross basis starting from 100% to developers in the first year and thereafter reducing by 10% every year till the sharing becomes equal.
  • Wheeling & Transmission Charges: The WEGs shall have to bear 40% in each of the transmission, wheeling and scheduling and system operation charges as applicable to the conventional power to the wind power.
  • CSS: The WEG will be levied 50% of cross subsidy charges.
  • Banking Charges: This order provides the banking of Energy for a period of 12 month commencing from April 1st, 2016 to 31st March.
    • The Unutilized energy as on 31st March every year would be encashed at the rate of 75% of the respective applicable wind energy tariff rate fixed by the Commission.
    • The WEGs have requested to consider purchase of unutilized energy for the generators under REC scheme at APPC rates and to permit banking of energy and encash the unutilized energy at 75% of the applicable rates notified by the Commission.
  • The order can be accessed here.

TNERC Draft Intrastate Regulation on Forecasting and Scheduling of Wind and Solar Generating Stations

The Forum of Regulators recently announced a Model Regulation on intra-state RE deviation settlement regulation which will cover all the existing and upcoming wind and solar power producers in India. States like Karnataka and Madhya Pradesh electricity regulators have already announced their draft regulation on wind/solar forecasting and scheduling, in line with FOR’s Model Regulation.

Tamil Nadu Electricity Regulatory Commission also, recently came up with its first Intrastate draft regulation on Forecasting and Scheduling of Wind and Solar Generating stations.

Detailed Analysis

The draft regulation broadly covers the following aspects:

  • Mandatory forecasting and scheduling of all the existing and upcoming wind/solar power generation at interstate level.
  • The state load dispatch centers are also mandated to carry out their own parallel forecasting mechanism primarily to manage secure grid operations.
  • A wind/solar power producer can either choose to have his own forecast or opt for SLDC’s forecast for the scheduling purpose. The deviations arising due to a difference between the scheduled generation and actual generation will be settled as per the penalty mechanism adopted under the respective regulations.
  • Similar to the FOR’s Model Regulation the Qualified Coordinating Agency (QCA) will manage the entire exercise of forecasting, scheduling, energy metering, telemetry, deviation management and penalty de-pooling at every wind/solar pooling station.
  • In deviation Settlement, the deviations and errors are quantified w.r.t available generation capacity at the time of scheduling. This will reduce the absolute error magnitude especially during low wind/solar seasons and thus reducing the penalty amount that a generator may have to absorb.
  • A permissible deviation band of +/-10% (w.r.t available capacity) and a permissible deviation band of within 5 % (w.r.t available capacity) have been permitted without any penalty separately for all the existing wind and solar power producers respectively.
  • Deviation Charges in case of under or over-injection by wind generators, for sale of power within the State.
  • Deviation Charges in case of under or over-injection by solar generators, for sale of power within the State.
  • Though the draft regulation is in line with the Model Regulation. The table below depicts how the two regulations vary with each other in terms of the Deviation charges and the deviation band for solar and wind generators :
We feel that though this regulation will help to streamline the large scale grid integration and security and benefit intrastate sale of power but it is a much more stringent regulation than the other regulations, since the error deviation has been narrowed down from +/-15% to +/-10% for Wind and +/-5% for Solar.

The Draft Order can be accessed here.

 

TNERC Finalizes APPC for FY 14-15

Tamil Nadu Electricity Regulatory Commission (TNERC) in its latest notification dated 4th Feb 2015 has finalized APPC for FY 14-15.

The definition of the APPC being followed by TNERC can be read as: Pooled cost of power purchase’ means the weighted average pooled price at which the distribution licensee has purchased the electricity including cost of self generation in the  previous year from all the long-term energy suppliers, but excluding those based on liquid fuel, purchase from traders, short-term purchases and renewable energy sources subject to the maximum of 75% of the preferential tariff fixed by the Commission to that category / sub category of NCES generators”.

The APPC determined by TNERC for FY 14-15 is Rs. 3.38 per unit or 75% of the preferential tariff fixed by the Commission to that category / sub category of NCES generators, whichever is less.

The APPC for FY 14-15 has increased by 8.6% compared to APPC of FY 13-14. Given below is the APPC of previous years, with % increase year on year:

The Order can be accessed here.

 

TNERC Hikes Power Tariff In the State

Cost of buying electricity from DISCOMs has become costlier for the Commercial & Industrial consumers in the state of Tamil Nadu. Considering the directives of the Hon’ble APTEL, the National Tariff Policy and in Exercise of the powers vested in it under the Section 62 and Section 64 of the Electricity Act, 2003 (Act) and the Tariff Regulations 2005, TNERC has decided to take up the matter of Determination of ARR and Tariff for 2014-15 by initiating suo-motu proceedings and based on that a public notice was issued by Tamil Nadu Electricity Regulatory Commission (TNERC) on 23/9/2014 eliciting comments &suggestion stakeholders to the proposed suo-motu revision of electricity tariff and transmission tariff.

The commission after considering all the comments & suggestions have revised the electricity tariff by 15% for all the category of consumers for FY 2014-15 effective from 12/12/2014.

 The new tariff applicable to industrial and commercial consumers for HT connections can be seen in the table below:

Group captive arrangement will still remain most viable option for the industrial & commercial consumers looking at the hike in the tariff and R&C measures still in place.

Similarly for LT consumers for all categories there has been tariff hike of 15% as can be seen in the order.

The order can be accessed here.

Contributed by karthik krishnan

TNERC Proposes Tariff for Wind, Biomass & Bagasse Based Power

The Tamil Nadu Electricity Regulatory Commission (TNERC) on 26th Sep 2014 has notified separate Consultative papers for determination of tariff’s for Wind, Biomass and Bagasse based power projects. Earlier TNERC extended the validity of tariff for the said three energy sources.

1. Wind power Projects – TNERC through the consultative paper has proposed the tariff for the wind projects at Rs. 3.59 per Unit. The control period is 2 years with tariff period of 25 years.

The commission has also proposed the wheeling, transmission and scheduling and system operation charges to be 40%, as applicable to the conventional power. The cross subsidy charges for the third party open access consumers as proposed to be 50%.

The Consultative paper for the wind projects can be accessed here.

2. Biomass Power Projects – The fixed cost component of Tariff proposed for is given in the table below:

The Variable cost component proposed for FY 2014-15 is Rs.3.61 per unit and for the FY 2015-16 is Rs. 3.79 per unit, the control period is 2 years with the tariff period of 20 years.

The commission has proposed to continue the existing wheeling, transmission & scheduling and system operation charges of 50%, as applicable to the conventional power. The cross subsidy charges for the third party open access consumers as proposed to be 50%. While for the generators who are availing Renewable Energy Certificate (REC), normal transmission charges, wheeling charges and line losses has been proposed. The existing CSS of 50% is proposed to continue for this control period.

The Consultative paper for Biomass projects can be accessed here.

3. Bagasse Power Projects – The proposed fixed cost component is highlighted in the table below:

The Variable cost component proposed for the FY 2014-15 is Rs.2.93/- per unit and for FY 2015-16 is Rs. 3.07/- per unit, the control period has been proposed 2 years with the tariff period of 20 years.

The commission has proposed to continue the existing wheeling, transmission & scheduling and system operation charges of 60%, as applicable to the conventional power. The cross subsidy charges for the third party open access consumers as proposed to be 50%. While for the generators who are availing Renewable Energy Certificate (REC), normal transmission charges, wheeling charges and line losses has been proposed. The existing CSS of 50% is proposed to continue for this control period.

The consultative paper for Bagasse based projects can be accessed here.

The TNERC has invited comments and suggestions for all the three consultative papers latest by 27th Oct 2014.

Our previous blog post on TN Solar tariff can be read here.

Contributed by Dheeraj Babariya.

TNERC Sets Aside the TN Solar Policy 2012

Tamil Nadu Electricity Regulatory Commission (TNERC) has dismissed a petition filed by Tamil Nadu Generation and Distribution Corporation (TANGEDCO) for the procurement of Solar Power through competitive bidding process. The commission notified the order on 15th Sep 2014.

The summary of the Petition and the commission’s order is stated in points below:

  • TENGEDCO through a petition requested before the commission to approve the purchase of Solar Power of 708 MW from 52 generators.
  • TENGEDCO also requested before commission to adopt the purchase rate Rs.5.97 (10 MW), Rs.6.15 (5 MW), Rs.6.20 (15 MW) and Rs.6.48 (678 MW) per unit arrived though competitive bidding process and to allow TANGEDCO to procure solar power from those bidders by entering into power purchase agreement for a period of 20 years.
  • TENGEDCO gave the reasons that the bidding has been done as per the Tamil Nadu Solar Policy 2012 which aims to procure 1000 MW of solar power for SPO (Solar Purchase Obligation) consumers.
  • The Commission in its findings stated that as the commission’s order on imposing SPO was struck down by APTEL (Appellate Tribunal for Electricity), so only RPO should be applicable as mandated in APTEL’s order.
  • The commission also stated that as per Tariff policy by Government of India such costly power should be procured at preferential tariff as determined by the state commission.
  • By giving the above stated reasons the commission dismissed the petition of the TENGEDCO saying that the said bidding process of TANGEDCO for procurement of solar power has no legal sanctity for consideration.

The TNERC order can be accessed here.

Our previous blog post on TNERC Solar tariff can be read here.

Contributed by Dheeraj Babariya

TNERC announces new Solar Tariff

Tamil Nadu Electricity Regulatory Commission in its latest order dated 12th September has determined tariff for solar power projects. The new tariff will be applicable to the solar projects commissioned in next one year. The order has come in force from its date of issue i.e. from 12th September itself.

The details of the tariff determined are given below:

Open Access charges – The commission as promotional measure has decided to adopt 30% of respective charges, in each of the transmission, wheeling, scheduling and system operation charges to solar power. While for the plants availing REC’s, 100% relevant charges will be applicable. Apart from this the Reactive Energy charges and 30% of parallel operation charges will be applicable.

Cross Subsidy Surcharge – 50 % of the cross subsidy surcharge will be applicable for solar power, same is applicable for other renewable power.

The Tariff determined by TNERC is lower compared to the tariff determined by CERC, as the commission has offered a waiver in the CSS and wheeling charges in order to compensate the difference with the added operational incentives.

Tamil Nadu released its Solar Policy in 2012 with a target of 3GW of solar power by 2015, while the state had an installed capacity of 109.26 MW on 31st July 2014. The new tariffs along with waiver in Open Access charges, will result in more investments in the coming year. In addition to this, if SPO is implemented in the state, it will be a major shot in the arm for Solar power in TN, without which the target seems like a distant reality.

The relevant order can be accessed here.

Our Previous blog post on TN SPO case with APTEL can be read here.

Contributed by Dheeraj Babariya.

TN Govt. Approaches Supreme Court against APTEL Order

Tamil Nadu Government has filed a petition in Supreme Court against the order of the Appellate Tribunal for Electricity (APTEL) dated 21st January 2014. The order says that state government cannot specify solar power obligation (SPO) for special category of consumers (applicable for all obligated entities except TANGEDCO), when there already exists Renewable Purchase Obligation (RPO) for the consumers in the state.

Background – The Govt. of Tamil Nadu drafted its solar policy (announced in 2012), mandating certain consumer to buy solar power, which was finalized by the Tamil Nadu Electricity Regulatory Commission (TNERC) in its order dated 7th March 2013. The order stated that – “As prescribed in the Solar Policy, 6% SPO starting with 3% SPO till December 2013 and 6% from January 2014 is applicable”.

The Tamil Nadu Spinning Mills Association appealed to APTEL for the removal of the Solar Purchase Obligation as RPO does mandate purchase of solar power.

The APTEL in its judgment said that the state commission cannot impose any other obligation such as SPO, as RPO already exists in the state. So the State Govt. has moved to the Supreme Court challenging this , as it clearly intends to impose SPO under its Solar Policy.

It is also worth noting that TNERC has mandated RE purchase to a total of 9% under its RPO regulation, which is one of the highest in India, with 0.05% Solar RPO and 8.95% Non-Solar RPO. The commission in its draft RPO Regulation 2014, has increased the solar RPO to 2% and total to 11%, to bolster Solar Power in the state in case SPO is not implemented.

Our Previous Blog Post on the same matter can be read here.

The recent media Article can be read here.

Preceding APTEL Order is available here.

Contributed by Dheeraj Babariya.

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