Grand Haven Board Of Light And Power

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Grand Haven, Thursday, May 31, 2018 — The Board of Light and Power will be placing the Sims power plant back on-line June 1 after a planned three-month spring maintenance shut-down period.

Although the plan was to run Sims through March 16, Sims tripped off-line unexpectedly on February 25 when debris carried by abnormally high river flooding blocked flow to the unit’s condenser. Boiler tube repairs extended the “forced outage” to March 1 when plant personnel determined not to return the unit to service for only the two remaining weeks before the regularly planned spring outage.

David Walters, General Manager stated, “While Sims was offline, the BLP purchased power from the Michigan Public Power Agency (MPPA), under its long-term Energy Services Agreement.” Sims has been off-line 38% of the time over the five year period from 2013-2017. “Power is routinely purchased from third-parties through the Agency when Sims is off-line, to supplement local generation as may be required to meet the BLP’s load, or as may be economi-cal” Walters said.

The Sims summer operations plan is to run from June 1 to August 31, generating ade-quate energy to meet the BLP system load and sell power to the wholesale market (approximate-ly 85,300 MWh to meet our load and about 15,000 MWh of market sales) – using approximately 64% of its available capacity during this period.

Under exiting plans, the unit would again come off-line August 31 and remain shutdown for the next three months during the planned fall maintenance period. This three-months on, three-months off operational schedule would continue through June 1, 2020 (24 months), at which time the BLP has proposed that Sims will be taken off-line permanently. This decision is currently under review by the Grand Haven City Council. Planned maintenance downtime is scheduled during the spring and fall when power costs in the wholesale marketplace are relative-ly low and customer demand is additionally low.

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