International cables make electricity cheaper ... Who knows—water levels may someday sink low enough in Norway’s reservoirs that it will want more cables, not fewer.

Solar panels collect and produce energy in daylight hours ... expenditures — unless you have an electric mower big enough to qualify for the electric vehicle tax credit. (That’s not a joke.

Smaller turbines erected in a backyard can produce enough electricity for a single home or small business. Wind is a clean source of renewable energy that produces no air or water pollution.

Fossil fuels, when burned to produce energy, cause harmful greenhouse gas emissions, such as carbon dioxide. Generating renewable energy creates far lower emissions than burning fossil fuels.

Big mushroom-powered electronics are still a stretch, as these living cells do not produce a great deal of electricity. But they could supply enough to power a temperature sensor for several days ...

There's a new solar energy park in Kenosha County that went into service in December and is capable of providing enough energy to power about 60,000 homes. The utility has also sought permission ...