The SunRise Building, a residential complex in Alberta, Canada, has established a Guinness World Record for the largest solar ...

For instance, a generator rated at 20 kW might use about 3.0 gallons of propane per hour ... The best portable propane generators can run continually for 150 to 200 hours. As long as the propane tanks ...

Our pick for the best value generator, the Generac 12,500/9,500 Watt Tri-Fuel Powered Portable Generator, is on sale for an ...