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Texas QSE To Pay $190,000 Under Settlement With PUC Staff

August 21, 2017

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Copyright 2010-17 EnergyChoiceMatters.com
Reporting by Paul Ring • ring@energychoicematters.com

EDF Energy Services, LLC (EDF) would pay $190,000 under a settlement with Staff of the Public Utility Commission of Texas to resolve alleged violations of ERCOT Nodal Protocols §§ 6.5.7.6.2.3, related to NSRS telemetry, and 6.4.6, related to Resource Status Code.

ERCOT Nodal Protocols § 6.5.7.6.2.3(9) requires QSEs to inform ERCOT of a unit's non-spinning reserve service (NSRS) availability using telemetry and the current operating plan (COP).

ERCOT Nodal Protocols § 6.5.7.6.2.3(5) requires QSEs to set the NSRS Schedule (NSSC) telemetry equal to the portion of NSRS being provided if the NSRS is being provided as Off-Line NSRS. It further provides that if the NSRS being provided is not Off-Line NSRS, then the NSSC shall be set to 0.

EDF is the authorized QSE for the generation resources Laredo G4 and Laredo G5.

According to the settlement, on April 13, 2015 Laredo G4 and Laredo G5 were contracted to provide between 57 and 62 MWs (depending on the Resource and the hour) of (NSRS), respectively, from hour ending (HE) 12:00 to HE 23:00. Off-line NSRS was deployed from 11:32-13:00 for both units. After the NSRS was recalled, EDF chose to keep the units on-line as on-line NSRS, as is permitted under the protocols. Instead of zeroing of out their NSSC values per ERCOT Protocols § 6.5.7.6.2.3 a value of "60" was manually entered and remained in place from 13:51 — 16:50 for both units.

According to the settlement, on April 13, 2015 for 6 minutes during HE 19:00 Laredo G4 and G5 were telemetering a Resource Status Code of OFFNS (offline and available for non-spin). The units were on at this time.

According to the settlement, for the same 6 minutes on April 13, 2015 during HE 19:00 the Laredo G4 and Laredo G5 had a non-zero NSSC. According to the settlement, the same violations occurred in HE 21:00 and were corrected by 20:11.

According to the settlement, on April 13, 2015 in HE 22:00 Laredo G4 incorrectly telemetered OFFNS for five minutes while the unit was providing online NSRS. The unit also incorrectly telemetered a value for their NSSC.

According to the settlement, in addition to the errors that occurred on April 13, 2015, the following instances of failing to zero out its NSSC occurred:

Laredo G4 and Laredo 5:

   • January 13, 2015

   • February 23, 2015

   • February 28, 2015

   • March 1, 2015

Laredo G4 only:

   • January 11, 2015

According to the settlement, Laredo G5 incorrectly telemetered an NSSC value of 0 during HE 22:00 on February 23, 2015 when it should have telemetered 90. At this time Laredo G5 was also incorrectly telemetering ON when it should have been telemetering OFFNS.

According to the settlement, both Laredo G4 and G5 were incorrectly telemetering OFFNS on March 1, 2015, when they should have been telemetering "ON."

According to the settlement, on February 23, 2015, Laredo G5 was committed to provide 90 MWs of NSRS. For a portion of HE 21:00 Laredo G5 was providing generation and telemetering a high sustained limit (HSL) of 90. Because Laredo G5 had a NSRS responsibility of 90 for HE 21:00, it would not have been able to provide the full 90 MWs of NSRS had it been called upon, the settlement states

EDF has taken various corrective measures to prevent future violations of a similar nature

Docket 47526

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