First Batch of Information Requests to Eversource on 2021 RNS Annual Update

Legal Document

Dated: August 24, 2021

Posted in: ,

Authored by:

New England States Committee on Electricity

Information Requests to Eversource Energy Service Company

Pursuant to the Interim Formula Rate Protocols (the “Protocols”) that the Federal Energy Regulatory Commission (“Commission”) approved on December 28, 2020 in Docket No. ER20-2054-000[1] as part of the settlement agreement resolving all issues in Docket No. EL16-19 (“Settlement Agreement”), the New England States Committee on Electricity (“NESCOE”) submits the following information requests to Eversource Energy Service Company, parent company of The Connecticut Light and Power Company (“CL&P”) and NSTAR Electric Company (“NSTAR Electric”), regarding the Participating Transmission Owners Administrative Committee’s July 30, 2021 Annual Informational Filing Regarding ISO Tariff Charges in Effect as of June 1, 2021 and January 1, 2022; Docket Nos. RT04-2-000, ER20-2054, et al. (“2021 Informational Filing”).[2]

These information requests are being sent to in accordance with Attachment 11 of the 2021 Informational Filing.  Questions regarding these requests may be directed to Jason Marshall at and Dorothy Capra at

  • Please refer to Attachment 10 – NSTAR East Worksheets 5 and 6.[3]
    1. Please provide a citation to the Commission’s authorization for NSTAR East to include CWIP in rate base.
    2. Explain the methodology that was used to calculate the estimated CWIP balances. Please include a sample numerical calculation with citations to the data sources illustrating how the CWIP balance was determined for one of the projects shown on the worksheets.
  • Section 13(iii) of the Settlement Agreement states that “[a]s part of the first informational filing under the Settled Formula Rate, National Grid, NSTAR Electric, and CL&P each shall include accounting procedures that comply with the Commission’s requirements documenting how Local Service customers will not be charged for capitalized AFUDC for projects that are included in CWIP in rate base . . . .”  For NSTAR Electric and CL&P, please identify where these accounting procedures are contained in the 2021 Informational Filing.

Document Source Citations

[1]     ISO New England Inc., 173 FERC ¶ 61,270 (2020).

[2]     The 2021 Informational Filing is the Annual Update under the Protocols.

[3]     The 2021 Informational Filing separates NSTAR Electric into “East” and “West.”