First subsea electricity cable links Newfoundland with Nova Scotia

“With the first of two cables between the two provinces installed and anchored, the Maritime Link interconnection is now a reality for Nova Scotia and Newfoundland and Labrador,” Rick Janega, president and CEO of Emera Newfoundland and Labrador, said in a statement.

“We’ll soon be able to transmit electricity directly between the provinces for the first time, allowing improved reliability, carbon reduction and increased renewable energy utilization.”

The link will help Nova Scotia meet federal regulations requiring a 50 per cent reduction in coal emissions by 2030 and provincial regulations requiring 40 per cent renewable energy by 2020. Nova Scotia Power customers will pay most of the bill for the project.

Installation of the second cable is expected to begin next month, and Emera has said it plans to have electricity flowing between the two provinces before the end of the year.

The two cables, each the width of a two-litre pop bottle, can carry 250 megawatts of high voltage direct current.

Together, they weigh about 11,000 tonnes, which is more than the Eiffel Tower. Their copper conductors are protected by 13 layers of various types of armour, insulation, fabric tape and a lead-alloy sheath. They will rest on the ocean floor at depths up to 470 metres.

While the Maritime Link project remains on time and on budget, Muskrat Falls is two years behind schedule and $4 billion over budget at $11.7 billion. It was supposed to start producing power later this year, but the new deadline is 2020 at the earliest.

Still, the Maritime Link won’t sit idle. Nova Scotia Power, another subsidiary of Emera, is expected to supply electricity to the island of Newfoundland to enable the province to shut down its oil-fired Holyrood generating station near St. John’s.

The Canadian Press

by Canadian Press

First subsea electricity cable links Newfoundland with Nova Scotia

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