The company offers a complete line of standby generators from 8kW to 75kW. The 8kW, 12kW, and 15kW models are air-cooled, run off of natural gas or propane, and are wired to the electrical box through an automatic transfer switch that will turn the generator on when it senses power loss and turn it off when power is restored. Liquid-cooled 27kW through 75kW units also are offered for large residential use. 507-357-6821. www.wincogen.com.