Washington Metropolitan Area Transit Authority’s community solar project is a case study for how innovative funding could help deliver public infrastructure projects expected to come to fruition under the $1.1 trillion U.S. infrastructure package.

In partnership with a private energy provider, Washington Metro installed solar panels on garage rooftops and parking lot canopies at four rail stations around the U.S. capital.

The result? Seventeen acres of photovoltaic solar panels — the equivalent of 13 football fields — that deliver enough energy to power 1,500 homes and expected revenue of $50 million over 25 years.

“There is no doubt that executing on the promise of the bipartisan infrastructure bill will require private-sector investment, and these kinds of public-private partnerships can be a more cost-effective way to deliver innovation and scale,” says Josephine Tucker, managing director of JLL’s Clean Energy and Infrastructure Advisory pra