Maine
regulators on Tuesday put three utilities on the path to distribute electricity
harnessed from tides at the nation's eastern tip, a key milestone in a bid to
turn the natural rise and fall of ocean levels into power.
The Maine
Public Utilities Commission set terms for a contract that would be in place for
20 years. The regulators also directed the three utilities to negotiate with
Ocean Renewable Power Co. to put electricity onto the grid this summer, the
first long-term power purchase agreements for tidal energy in the United
States.
"It's
a landmark in the commercialization of tidal energy in the U.S.," Chris
Sauer, president and CEO of the Portland-based company, told The Associated
Press.
Ocean
Renewable intends to install its first underwater turbine unit this summer on
Cobscook Bay under a demonstration project.
Power
production will begin modestly, with the first unit producing enough
electricity for 20 to 25 homes; the pilot program calls for additional units at
sites off both Lubec and Eastport to bring production to 4 megawatts, enough to
power up more than 1,000 homes by 2016.
All told,
the company sees up to 50 megawatts of tidal power potential off Lubec and
Eastport, home to one of the world's best tidal sites, where the tide rises and
falls 20 feet twice a day.
The Maine
Public Utilities Commission established what's called a contract term sheet for
the project. It sets the rate to be paid for the tide-generated electricity at
21.5 cents per kilowatt hour, a subsidized rate that's far higher than the
current standard offer of about 11 to 12 cents paid by most Maine residents.
Central
Maine Power, Bangor Hydro Electric Co. and Maine Public Service Co. will
negotiate a contract with Ocean Renewable under the framework established by
regulators.
Richard
Davies, Maine's public advocate, said there were some mixed emotions over
setting a rate that's so much higher than the current cost of electricity.
But Davies
and his staff came down in support of the project because the cost of energy
produced by fossil fuels will likely grow much faster than the cost of tidal
energy over the course of the 20-year contract. In fact, he said, the energy
could become competitive within five years.
The
21.5-cent rate, which grows 2 percent a year over the contract, makes the
project feasible, Sauer said. It'll be subsidized through a previously
established state fund.
Ocean
Renewable's Maine Tidal Energy Project is one of two tidal programs to receive
pilot project licenses earlier this year from the Federal Energy Regulatory
Commission. The other company, Verdant Power, is working to advance its own
tidal energy system in New York City's East River.
Verdant's
design looks a lot like a wind turbine, only it's underwater. Ocean Renewable
uses rotating foils that lend the appearance of a manual reel mower for cutting
grass.
Officials
in Canada are watching the Maine project with interest. Ocean Renewable and
Nova Scotia-based Fundy Tidal Inc. hope to install the same units in waters off
Nova Scotia, where Bay of Fundy offers even greater tidal power potential,
officials have said.
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