The trash at the landfill produces methane which is usually just burned off but Ameresco and Republic Services think that’s a waste.

The change is expected to save 3,089 tons of CO2 emissions annually and achieve a 99.5% reduction in bus fleet emissions.

Both provide electricity during an outage—the choice comes down to convenience, price, and powerA portable generator (left) is much less expensive than a permanently installed whole-house model ...