Eversource Energy Proposes Transmission Cost Adjustment Mechanism (TCAM) Rate Change

Strategic Insights -

Richard D. Chin, Manager of Rates for Eversource Energy, has presented testimony to the New Hampshire Public Utilities Commission in support of a proposed Transmission Cost Adjustment Mechanism (TCAM) rate change. The proposed rates and charges aim to recover transmission costs for the forecast period, with a focus on rate design and cost allocation. The proposed TCAM rates are based on the 2023 test year sales and demand, with adjustments for rate classes, including Rate B, which has a unique rate design and calculation methodology.

Key Takeaways:

  • The proposed TCAM rates are based on the 2023 test year sales and demand, with adjustments for rate classes.
  • The rate design and calculation methodology for Rate B have been updated to reflect changes in the Commission's Order No. 26,735 (November 28, 2022).
  • The proposed TCAM rate change will result in a total bill increase of $4.21 per month for a Residential Rate R customer using 600 kWh per month.
  • The proposed rates and charges aim to recover transmission costs for the forecast period, with a focus on rate design and cost allocation.
  • The proposed TCAM rates have been designed to promote just and reasonable rates for all customers.
  • The testimony of Richard D. Chin, Manager of Rates for Eversource Energy, was presented to the New Hampshire Public Utilities Commission in support of the proposed TCAM rate change.

Statistics:

  • The proposed TCAM rate change will result in a total bill increase of $4.21 per month for a Residential Rate R customer using 600 kWh per month.
  • The proposed rates and charges aim to recover transmission costs for the forecast period, with a focus on rate design and cost allocation.
  • The rate design and calculation methodology for Rate B have been updated to reflect changes in the Commission's Order No. 26,735 (November 28, 2022).
  • The proposed TCAM rates are based on the 2023 test year sales and demand, with adjustments for rate classes.

Sources:

  • Public Service Company of New Hampshire d/b/a Eversource Energy Docket No. DE 25-045 Direct Testimony of Richard D. Chin August 8, 2025 Page 1 of 7
  • Public Service Company of New Hampshire d/b/a Eversource Energy Docket No. DE 25-045 Direct Testimony of Richard D. Chin August 8, 2025 Page 3 of 7
  • Public Service Company of New Hampshire d/b/a Eversource Energy Docket No. DE 25-045 Direct Testimony of Richard D. Chin August 8, 2025 Page 5 of 7
  • Public Service Company of New Hampshire d/b/a Eversource Energy Docket No. DE 25-045 Direct Testimony of Richard D. Chin August 8, 2025 Page 7 of 7