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How Solar Energy Pays off for Thomaston Wastewater Treatment Plant

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The Town of Thomaston, Maine, installed a solar system as part of a broader push to utilize clean energy.

SEARSPORT, Maine - Amzeal -- The Town of Thomaston, Maine, is installing a 503 kW solar system near its wastewater treatment plant. Sundog Solar of Searsport, Maine, designed and is installing the solar project.

The 1,290-panel solar farm will soon produce an estimated 90% of the power for the town, including the wastewater treatment facility, fire station, town office, public works, and street lights. Sundog Solar installed the solar system next to wastewater lagoons on town property.

Instead of entering a Power Purchase Agreement (PPA) for solar energy, like numerous municipalities in Maine, the Town of Thomaston will own the solar installation outright. This project was made possible with a low-interest loan through the Maine Municipal Bond Bank.

"We can install the solar energy system with no increase in taxes or resident fees," said John Fancy, superintendent of Thomaston Pollution Control Department. "Instead of paying a higher electricity bill, much of the electricity savings will go towards paying off the loan." That means the project will be cash flow positive right away.

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Wastewater treatment facilities are energy-intensive to operate due to the need to move millions of gallons of water throughout the treatment process. The Thomaston Wastewater Treatment Plant is a modern lagoon-type facility constructed in the 1990s and contains three aerated lagoons. It uses approximately 150,000 kWh per year, and it is vital to protecting the water quality in the St. George River.

According to Fancy, the town is always looking for opportunities to reduce its reliance on fossil fuels and lower operating costs. "We recently converted all the streetlights to LEDs. We used to pay between $28,000 and $30,000 annually to power the streetlights, and now we pay between $4,000 and $5,000. We replaced an outdated boiler with an energy-efficient propane unit and a heat pump. The town also installed an electric vehicle charging station to support clean transportation."

The solar facility in Thomaston is part of a larger vision that embraces renewable energy and energy conservation. "It's an excellent idea for the town to examine energy efficiency in combination with solar energy," says Danny Piper, co-owner of Sundog Solar. "Then, a smaller solar system can produce a majority of the town's power. It's a win-win for taxpayers and the environment."

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To date, this is the largest solar system installed by Sundog Solar (http://www.sundog.solar). The company was founded in 2009 and has installed systems on MDI High School, Mid-coast School of Technology, and the towns of Waldoboro, Tremont, Damariscotta, and Oakland.

Media Contact
Sarah Lozanova

Source: Sundog Solar
Filed Under: Energy

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