Topic/Matter Intersection

Topic:"Transmission Planning" in M12694

Matter: Nova Scotia Power Inc. - Cold Weather Event, January 23-26, 2026
5 passages 2 documents

Transmission Planning across all matters →

N-1Report 3 passages
1 Figure 5 - Hourly Megawatt Flows January 25 and 26 p. pp. 11-12
1 Figure 5 - Hourly Megawatt Flows January 25 and 26 25 January 2026 Hour-Ending: 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 Net Load 2172 2140 2099 2066 2076 2114 2164 2241 2311 2336 2320 2294 Highlands Export -5 -5 -5...

AI summary Figure 5 presents hourly megawatt flows for January 25-26, 2026, showing net load, exports (e.g., Highlands, East End, Cape Breton), imports (e.g., Onslow, Western, Valley), and wind generation. Data highlights fluctuations in energy distribution across regions, with significant variations in export/import volumes throughout the day.

Preamble p. p. 15
- There were no issues reported for the Maritime Link and it performed as designed for flowing - energy in both directions in support of both the NLSO and the NSPSO. The Maritime Link is also - an excellent voltage control resource for mai...

AI summary The Maritime Link performed as designed, supporting energy flow for both the NLSO and NSPSO, and provided significant voltage control and reactive support during peak load periods by injecting over 100 MVAR into the NS Power system.

3.7.1 Transmission / Substation p. pp. 16-17
3.7.1 Transmission / Substation - NS Power's careful management of the available capacity allowed the Company to avoid province- - wide manual load shedding during this event. However, localized rotating feeder outages were - initiated to...

AI summary NS Power's management of available capacity prevented province-wide manual load shedding during the event. However, localized rotating feeder outages were implemented to avoid overloading individual transmission and substation assets.

N-2NSPI (NSEB) RIR 1 to 17 2 passages
1 field, resolving the issue. This device was originally missing from the list of at-risk devices p. p. 10
1 field, resolving the issue. This device was originally missing from the list of at-risk devices 2 were fully charged ahead of the forecast cold load. The NSPSO dispatches all available 3 energy resources including the BESS sites as per t...

AI summary The document discusses the use of Battery Energy Storage Systems (BESS) during a cold weather event, highlighting their role in maintaining system reliability by injecting reactive power. It also references a request for information regarding the loading capacity of Transmission Line L-5545 during a January cold-weather event.

Date: Sun January 25, 2026 p. pp. 37-38
Date: Sun January 25, 2026 HOUR LOAD FORECAST RESERVE REQMT SYSTEM MARGIN PA1 LIN1 LIN2 LIN3 LIN4 TR5 TR6 PT2 TUC1 TUC2 TUC3 TUC6 CT TOTAL IPP TOTAL PT BIO HYDRO TOTAL BESS WIND TOTAL FIRM NB PURCH FIRM NFLD PURCH 3 788 16 20 0 3 8 43 35 2...

AI summary The document presents a table of load forecasts, reserve requirements, and system margins for various hours, along with details on different power sources and transmission lines. It outlines the distribution and usage of energy across multiple components of the power system.

Disclaimer: These summaries were generated by AI from the filings they describe. We take care to make them accurate, but errors are possible - and they aren't advice. Only the filings themselves are the record: if you're relying on something here, confirm it against the source documents or the Nova Scotia Energy Board's own record. Full disclaimer →