Nova Scotia Independent Energy System Operator (IESO Nova Scotia) - Proposed expenditure and revenue requirements for test year ending March 31, 2026

What's happened

Filing Timeline

• 25 Feb
  Order

  NSEB approves IESO Nova Scotia's inaugural $6.75M revenue requirement for test year ending March 31, 2026, while imposing a ±10% variance threshold, minimum filing requirements, and mandatory quarterly reporting as conditions on future cost recovery.
• 29 Jan
  Document

  IESO Nova Scotia filed its reply submission in M12412, confirming broad agreement with intervenor recommendations on cost controls, evidentiary standards, and transition reporting while pushing back on a 10% cost overrun threshold.
• 15 Jan
  Document

  Industrial Group, Small Business Advocate, and Consumer Advocate file intervenor submissions supporting IESO-NS's initial $6.75M revenue requirement while urging stronger financial controls, deferral account guardrails, and an expedited IRP schedule
• 22 Dec
  Document

  IESO Nova Scotia filed rebuttal evidence responding to Doane Grant Thornton and Synapse Energy Economics consultant reports on its 2025/2026 Revenue Requirement Application
• 09 Dec
  RIR

  Doane Grant Thornton responds to Industrial Group information requests on NSIESO's budgeting practices, deferral account design, and filing requirements for the test year ending March 31, 2026
• 19 Nov
  Document

  The Industrial Group issued seven information requests to NSIESO's independent reviewer Doane Grant Thornton probing evidentiary gaps, filing standards, and deferral account design in the IESO's FY2026 revenue requirement application
• 28 Oct
  Document

  NSEB retained Doane Grant Thornton and Synapse Energy Economics to assess NSIESO's first-year revenue requirement application, with experts finding the $6.75M OM&A budget broadly reasonable but flagging significant documentation gaps, absent accounting policies, and an uncapped deferral account as key concerns.
• 07 Oct
  RIR

  IESO Nova Scotia filed Round 1 information request responses, an errata clarifying three evidentiary errors, and disclosed two provincial contribution agreements totalling $2.675M in startup funding
• 16 Sep
  Document

  Four intervenor groups filed Round 1 Information Requests to NSIESO in M12412, probing staffing costs, IRP readiness, procurement plans, and the NSPI-to-NSIESO transition structure ahead of an October 7, 2025 response deadline.
• 12 Sep
  Document

  NSEB Board Staff issued 25 Information Requests to NSIESO regarding its inaugural revenue requirement application for the test year ending March 31, 2026
• 29 Aug
  Document

  Nova Scotia Independent Energy System Operator filed its participant list for the M12412 revenue requirement proceeding for test year ending March 31, 2026
• 28 Aug
  Document

  Consumer Advocate, Port Hawkesbury Paper, and four municipal electric utilities filed Notices of Intervention in the IESO Nova Scotia revenue requirement proceeding for test year ending March 31, 2026.
• 21 Aug
  Document

  SWEB Development filed a Notice of Intervention in M12412, seeking intervenor status in the NSIESO revenue requirement proceeding citing interconnection interests
• 14 Aug
  Document

  NSIESO filed its inaugural revenue requirement application with the NSEB, seeking approval of $6.75 million in OM&A expenses for the test year ending March 31, 2026.
• 12 Aug
  Document

  Eastward Energy Incorporated filed a Notice of Intervention in NSEB Matter M12412, the IESO Nova Scotia expenditure and revenue requirements proceeding for test year ending March 31, 2026
• 08 Aug
  Document

  Industrial Group comprising ten large manufacturers and shippers files notice of intervention in IESO Nova Scotia's test year 2026 revenue requirement proceeding
• 07 Aug
  Document

  Small Business Advocate and Nova Scotia Power Inc. file notices of intervention in IESO Nova Scotia's 2026 revenue requirement proceeding
• 06 Aug
  Order

  NSEB issues Hearing Order and paper hearing process for NSIESO's inaugural revenue requirement application covering test year ending March 31, 2026
• 05 Aug
  Document

  Nova Scotia Independent Energy System Operator filed its inaugural revenue requirement application for the test year ending March 31, 2026, seeking approval of $6.75M in ongoing OM&A expenses and establishment of a Net OM&A Deferral and Variance Account pending future rate recovery.

The filings themselves

Documents

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