With a PPA, a company agrees to buy renewable energy from a project that is not online yet for a set period at a set price, usually between a decade and 20 years. This guarantee of steady income for a ...

Historians get excited when civilizations switch technologies, building materials, and energy sources. Just think of all the ages: stone, bronze, iron, steam, p ...

The call to use renewable resources, especially as energy sources, is becoming more common. That's because our dependence on and consumption of nonrenewable resources is causing a rapid decline in ...

In 2015, only 10 percent of America’s energy consumption came from renewable energy sources like wind, solar, and hydropower and less than a quarter of electricity generation came from renewable ...

October 3, 2019 — Editor’s note: This story was the result of a reader question. If you have a question or a topic that you think needs more coverage, please email us at contact@ensia.com.. Renewable ...

The Integration Of Alternative Energy Sources The ability to remotely control temperature and lighting to optimize energy utilization is a key feature in smart home construction.

Lee Tesdell is a long-time alternative energy supporter. Tesdell owns and manages his family’s Century Farm near Slater in Polk County. His great-grandfather bought the family farm in 1884.

Fossil fuels, including coal, oil, and natural gas, have been dominant sources of energy for the past 150 years, supplanting whale oil in the late 19th century as the top energy industry.