NSPML filed its Q2 2026 Quarterly Report on the Maritime Link, disclosing a February 27 communications failure that triggered widespread Newfoundland outages and reporting sustained 99.8% system availability through May 2026.

M12946 · NSP Maritime Link Inc. (NSPML) - 2026 Q2 Quarterly Report

AI summary

A loss of both communications paths between the Woodbine (NS) and Bottom Brook (NL) converter stations on February 27, 2026 caused the Maritime Link to unexpectedly transmit nearly 550 MW, tripping both poles and triggering generation trips and widespread power outages in Newfoundland lasting 15 minutes to just over an hour (§2.5); the root cause was a telecom supplier merging the two ostensibly redundant paths onto a common infrastructure element without NSPML's knowledge.
NSPML implemented two mitigating actions following the February 27 event: a site interlock preventing DC voltage ramps when communications are lost, and removal of the NS System Operator loss optimization alarm and associated DC voltage reduction protocol (§2.5).
The Ns Nb Reliability Intertie Project submarine Cable Protection Project second phase is planned for Q3 2026 and remains on budget; a nearshore subsea inspection in May 2026 confirmed both cables remain buried near Cape Ray, with the inspection report to be filed upon completion (§2.4).
Q1 2026 sustaining capital was $126,662, primarily for preliminary rock installation work, while original ML Project capital showed a negative adjustment of -$9,568 related to outstanding land expropriation matters in both NS and NL (§3.0); a $500,000 credit plus WACC of $6,578 was applied to the June 2026 invoice following the Board's May 11, 2026 Decision reducing NSPML's 2026 Assessment (§4.0).
NSPML requested that the Board accept the LTAMP commercial in-service update included in this quarterly report—filed in confidence as Attachment 1—as satisfying the Board's direction in Decision M12394 (¶36) requiring quarterly LTAMP status reports beginning July 31, 2026 (§2.10).

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What was filed

Documents filed on this day

N-1 Q2 Quarterly Report - Redacted exhibits
N-1(C) Q2 Quarterly Report - Confidential exhibits
102630 Email NSPML re: Confidential information other_documents