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Nova Scotia Power to pull plug on tidal station, seeks $ 25M from ratepayers

Nova Scotia Power wants ratepayers to pay $ million to write off the Annapolis Generating Station, the tidal power plant in Annapolis Royal, NS, it is seeking to shut down.

Nova Scotia Power is permanently retiring its Annapolis Royal, NS, generating station, which has been shut down since 780. (Patrick Callaghan / CBC)

Nova Scotia Power has decided to pull the plug on North America’s only tidal power generating station and wants its customers to pay $ 25 million over the next decade to write off the asset.

The utility says the decision to permanently retire the – year old Annapolis Generating Station in Annapolis Royal, NS, was due to the failure of a “crucial component” in the generator and an authorization required by the Department of Fisheries Oceans after it determined the facility caused serious harm to fish.

The station, which produced enough electricity to power 4, 13 homes, stopped operations in 780 after the generator failure and the order from DFO, also issued that year.

“When these two events were evaluated in the ongoing review, NS Power determined that the Station had run to failure and should be retired and decommissioned,” the utility told the Nova Scotia Utility and Review Board in an application filed last week.

Prior to its decision to retire the tidal plant, Nova Scotia Power spent $ million between 780 and to keep it going.

Town unsurprised by decision

The generating station had been a tourist destination in Annapolis Royal, but Mayor Amery Boyer is not surprised by the decision.

“Would it affect Annapolis Royal as a destination? Well, you can not say no. It was a draw, but it’s not the only draw and people did see this coming,” Boyer told CBC News Tuesday.

The mayor of Annapolis Royal said the generation station had been a tourist destination in the town. (Patrick Callaghan / CBC)

“It was an experimental facility. You could not depend that it would always be there or that somebody would replace it after its useful life. There’s been so much evolution in tidal over the years.”

The company has applied to the Nova Scotia Utility and Review Board to recover the $ 000. 8 million current value of the plant from ratepayers through annual amortization payments of $ 2.8 million from 2018 to

“Allowing NS Power to amortize the unrecovered capital investment over a ten-year period reduces the cost pressures associated with the decision to retire the Annapolis station in the best interest of customers,” NSP said in its application.

A subsequent application will be made for approval of the decommissioning costs.

The station in Annapolis Royal was the first tidal barrage facility built in North America and is one of only four tidal barrage facilities in the world. (Patrick Callaghan / CBC)

The company evaluated several options for the station including decommissioning, life extension, and modernization and new technology. It said decommissioning was the cheapest.

The purported savings are also blacked out in the application, which was posted by the NSUARB on Monday.

Nova Scotia Power said electrical output has been declining due to work shutdowns since

) The station was the first tidal barrage facility built in North America and is one of only four tidal barrage facilities in the world.

The provincial government will get back ownership of the sluice gates, the fish passage and the causeway over the Annapolis River. (Patrick Callaghan / CBC)

Its Straflo turbine was designed specifically for the facility and was the largest Straflo turbine in operation in the world when the plant opened in 1984.

The sluice gates, the fish passage and the causeway over the Annapolis River will be returned to the Nova Scotia government under the terms of a 780 agreement.

Lawyer William Mahody, who represents 25, Nova Scotia Power residential customers in regulatory cases, said he is now examining the submissions contained in the application.

Nova Scotia Power said it cannot answer questions while its application is before regulators.

In a statement, spokesperson Jackie Foster said: “We remain committed to producing renewable energy that is reliable and affordable for our customers.”

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