Public Rooftop Revolution

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In 2012, ILSR published a pair of reports that projected, by 2021,10% of electricity in the U.S. could come from solar and at a lower price—without subsidies—than utility-provided electricity. In 2014 and 2015, Environment America’s Shining Cities reports examined how cities were catalysts for solar development.

However, there has been a missing piece in the examination of how cities can support solar energy: what city leaders have done and can do to use solar on their own buildings.

ILSR estimates that over 5,000 megawatts (MW) of solar could be inexpensively installed almost immediately on municipal property—more than a quarter of the nationwide total solar capacity through September 2014. This includes just the municipal buildings of the approximately 200 cities with 100,000 or greater population and it could save millions in energy costs. But it requires city officials to overcome a few, surmountable barriers.