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Tufts maintains six solar arrays that make the power grid greener and help Tufts save money. Solar generated power is about 60 percent less expensive than electricity from National Grid.

Tufts funds solar installations three ways: capital expenditure, grants, and Power Purchase Agreements. Power Purchase Agreements are contracts in which a developer funds the purchase and installation of a solar energy system, then sells the Renewable Energy Credits generated by that system to the customer so it can meet renewable energy requirements.

Keep reading to learn where each solar array at Tufts is located, when it was installed, how it was funded, and how much energy it produces.

Cummings School

Campus: Grafton

Year Installed: 2017

Funding: Power Purchase Agreement with NRG Energy

Power Produced: 3,800 kW

Dowling Garage

Campus: Medford/Somerville

Year Installed: 2014

Funding: Power Purchase Agreement with SunBug Solar

Power Produced: 99 kW (125,000 kWh annually)

 

Hodgdon Hall

Campus: Medford/Somerville

Year Installed: 2018

Funding: Grant funded by Tufts Green Fund ($6,500), Tufts University ($5,500), and SunBug Solar ($10,000)

Power Produced: Tufts Energy Group project that charges student electronic devices on the patio and common room

Lewis Hall

Campus: Medford/Somerville

Year Installed: 2018

Funding: Power Purchase Agreement with Solect Energy

Power Produced: 83.2 kW (100,000 kWh annually)

Sophia Gordon Hall

Campus: Medford/Somerville

Year Installed: 2006

Funding: Capital expenditure

Power Produced: 25,000 kWh annually

Science and Engineering Complex

Campus: Medford/Somerville

Year Installed: 2018

Funding: Power Purchase Agreement with Solect Energy

Power Produced: 52.36 kW (61,000 kWh annually)