Wind turbines are getting larger and a new study says that’s good, because they produce more energy with reduced life-cycle greenhouse-gas impact.

Puget Sound Energy’s Lower Snake River wind power plant, in eastern Washington, begins generating up to 343 megawatts of power.

The push for a production tax credit extension continues, and wind-state Republicans are among those most forcefully backing the clean-energy subsidy.

Windstream Energy strikes a deal for 130 Siemens turbines, but a moratorium is preventing construction on Lake Ontario of Canada’s first offshore wind farm.

We chat with a founder of wind power startup Eastern Wind Power to learn about the firm’s 50-kilowatt vertical-axis wind turbine for building rooftops.