(1) The charges for the Deviations for each time-block, payable for over drawal by the buyer and for under-injection by the seller; and receivable for under-drawal by the buyer and for over-injection by the seller; shall be worked out on the average frequency of that time-block at the rates 1 [specified in Table-1, read with the notes in the parenthesis and the proviso below the said Table] as per the provisions specified in these Regulations:
1 Sub. for words and figures “specified in the Table-1 below” for vide not. No. HPERC/428 dated 29th June, 2019, published in R.H.P. dated 3rd July, 2019 at p. 3131-3137.
Compendium of HPERC Regulations, March 2021 11 1 [Table-1 Frequency based Charges for Deviation Average Frequency of the time block (Hz) Charges for Deviation (Paise/kWh) Below Not Below
50.05 0.00
50.05 50.04 1xP/5
50.04 50.03 2xP/5
50.03 50.02 3xP/5
50.02 50.01 4xP/5
50.01 50.00 P
50.00 49.99 50.00+15xP/16
49.99 49.98 100.00+14xP/16
49.98 49.97 150.00+13xP/16
49.97 49.96 200.00+12xP/16
49.96 49.95 250.00+11xP/16
49.95 49.94 300.00+10xP/16 1 Sub. for vide not. No. HPERC/428 dated 29th June, 2019, published in R.H.P. dated 3rd July, 2019 at p. 3131- 3137and before its substitution read as under:
Table -1 Frequency based Charges for Deviation Average Frequency of the time block (Hz) Charges for Deviation Below Not Below Paise/kWh
50.05 And above 0.00
50.05 50.04 35.60
50.04 50.03 71.20
50.03 50.02 106.80
50.02 50.01 142.40
50.01 50.00 178.00
50.00 49.99 198.84
49.99 49.98 219.68
49.98 49.97 240.52
49.97 49.96 261.36
49.96 49.95 282.20
49.95 49.94 303.04
49.94 49.93 323.88
49.93 49.92 344.72
49.92 49.91 365.56
49.91 49.90 386.40
49.90 49.89 407.24
49.89 49.88 428.08
49.88 49.87 448.92
49.87 49.86 469.76
49.86 49.85 490.60
49.85 49.84 511.44
49.84 49.83 532.28
49.83 49.82 553.12
49.82 49.81 573.96
49.81 49.80 594.80
49.80 49.79 615.64
49.79 49.78 636.48
49.78 49.77 657.32
49.77 49.76 678.16
49.76 49.75 699.00
49.75 49.74 719.84
49.74 49.73 740.68
49.73 49.72 761.52
49.72 49.71 782.36
49.71 49.70 803.20
49.70 824.04 12 Compendium of HPERC Regulations, March 2021
49.94 49.93 350.00+9xP/16
49.93 49.92 400.00+8xP/16
49.92 49.91 450.00+7xP/16
49.91 49.90 500.00+6xP/16
49.90 49.89 550.00+5xP/16
49.89 49.88 600.00+4xP/16
49.88 49.87 650.00+3xP/16
49.87 49.86 700.00+2xP/16
49.86 49.85 750.00+1xP/16
49.85 800.00 Where P is the Daily Simple Average Area Clearing Price (SAACP) in paisa per kWh.
Notes:—
(i) The Deviation Settlement Mechanism (DSM) rate vector will have a dynamic slope determined by joining the identified price points at 50 Hz. (daily simple average ACP), frequency of 49.85 Hz (Rs. 8 per unit) and 50.05 Hz (zero) on a daily basis.
(ii) The maximum ceiling limit applicable for average Daily ACP discovered in the DAM segment of Power Exchange at 50.00 Hz shall be 800 Paise/kWh.
(iii) The formulae have been devised in a manner which ensure that the Charges for deviation for each 0.01 Hz step shall be equivalent to the Slope determined by joining the price at 'Not below 50.05 Hz' and 'identified price at 50.00 Hz' in the frequency range of 50.05-50.00 Hz, and to the Slope determined by joining the 'price identified at 50.00 Hz' and price at 'below 49.85 Hz' in frequency range 'below 50 Hz' to 'below 49.85 Hz'.
(iv) In case of non-availability of daily SAACP due to no-trade on a given day, daily SAACP of the last available day shall be considered for determining the DSM charges as per Table-1.
(i) Deviation price shall be rounded off to nearest two decimal places.
(vi) The State Load Dispatch Centre (SLDC) shall declare the DSM rates, based on the rates discovered/computed by NLDC under the Central Electricity Regulatory Commission (Deviation Settlement Mechanism and Related Matters) Regulations, 2014 and shall display all relevant information on its website:]
Provided that,—
(i) the receivables against the charges for the Deviation for the under drawal by the buyer in a time block in excess of 12% of the schedule shall be zero; and
(ii) the receivables against the charges for the Deviation for the over injection by the seller in a time block in excess of 12% of the schedule shall be zero, except in case of injection of infirm power, which shall be governed by the sub-regulations & (4) of this regulation, as the case may be.
(2) The charges for Deviation may be reviewed by the Commission from time to time either suo-moto or on receipt of comprehensive proposal from SLDC.
Compendium of HPERC Regulations, March 2021 13
(3) In cases where treatment of infirm power has been included in the PPA, or in any other agreement, or the provision for treatment of such power are already provided in any of the regulations, the same shall be governed by such conditions or provisions.
(4) In cases not covered under sub-regulation (3), the infirm power injected into the grid by a generating unit or a generating station during the testing, prior to Commercial Operation Date (COD) of the unit, shall be paid at charges for deviation for infirm power injected into the grid, consequent to testing, for a period not exceeding 6 months, or for extended time allowed by the Commission, subject to a ceiling of cap rate of Rs. 1.78/kWh sent out in case of hydro/wind/solar/MSW generation.