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agrivoltaics

February 3, 2023

Floating solar gaining popularity as unconventional US energy source

By Grace van Deelen

For the small, working-class community of Cohoes, New York, climate change and costly energy prices are posing increasing concerns, just as they are for cities and towns across the country.

Now, Cohoes, just 10 miles north of the state’s capital city of Albany, is poised to take an unconventional step toward addressing those concerns by constructing what experts say is the first – or one of the first – municipally-owned and operated floating solar installations in the United States.

The town plans to install a 3.2-megawatt floating array of solar panels on its 10-acre municipal water reservoir; construction is due to start later this year.

“We have almost no buildable land [within Cohoes],” said Theresa Bourgeois, the town’s director of operations. “But we really wanted to figure out how we could do this within the city.” Floating solar became the obvious solution, she said.

Cohoes projects the floating solar installation will generate enough energy to power the entire town of roughly 17,000 people. In all, the project will cost the city about $6 million, and the town is hoping that new provisions in the 2022 Inflation Reduction Act will provide some funding.

Adaptation growing
Japan has about 80% of the world’s floating solar capacity, and other countries in Asia and the Middle East have also been quick to adopt floating solar, according to the National Renewable Energy Laboratory (NREL).

Floating solar is far less common in the US, but adaptation appears to be on the rise. Before 2016, only two projects had been installed, but the number grew to over 20 by the end of 2020, according to NREL. The largest projects are concentrated in California and Florida.

A 2019 study by NREL found that if floating solar were installed on just 27% of suitable man-made water bodies, the resulting energy could make up 10% of the nation’s energy production.

October 25, 2022

Across the Midwest, farmers are turning to solar to boost profits

Grace van Deelen

In a corner of southwestern Wisconsin, in a town called Eden, Bob Bishop spends his days farming land that has been in his family since the 1940s. He manages about 2,000 acres— some is pasture for his cattle, some is seeded with corn and soybeans. But 40% of his acreage, as he likes to say, will soon be farming the sun.

Under a 25-year lease to a large solar project called the Badger Hollow Solar Farm, Bishop has agreed to the installation of solar panels across hundreds of acres of land he previously used to grow crops. The project, which is owned by energy companies Invenergy and Madison Gas & Electric, is projected to total 3,500 acres in all and generate enough energy to power more than 77,000 homes. The developers say landowners will collect an estimated $59 million from leasing their property to the project.

In agreeing to set aside some of his land for solar energy production, Bishop is one of an increasing number of farmers in the Midwest looking to solar as a way to add to – or replace – money made growing crops, and potentially help fight climate change at the same time.

The moves are triggering some controversy, as critics say filling large swaths of land with massive installations of solar panels is unsightly and inhibits needed food production.

But advocates say using farmland to harness a clean, renewable energy source is a critical move in the face of harmful climate impacts. The Office of Energy Efficiency and Renewable Energy (EERE), a part of the US Department of Energy, says that solar energy has an important role in cutting greenhouse gas emissions, improving air quality and reducing the strain on water resources that otherwise are tapped for traditional energy production.

Bishop said he considers the transition of his land to solar production as a welcome move. His land will produce far more usable energy per acre than it would if he was still growing corn for ethanol, Bishop said. And while growing corn requires regular management and costly inputs to control weeds and pests, solar panels require little maintenance.

“It’s all revenue,” said Bishop.