Generac 5818 EcoGen Series, 6kW Air Cooled Standby Generator, Liquid Propane Powered, Steel Enclosed (Discontinued by Manufacturer) Extended run capability and long life are gained from our exclusive premium oil recovery and circulation system that virtually halts oil degradation Specifically designed to interact with off-grid renewable energy applications. This model is solar compatable. Weather protective steel enclosure provides exceptional protection from the elements on not only the enclosure, but also the base frame Nexus digital controller features an LCD display with status indicators, monitors generator performance, and also records any issues Automatically start and stop the generator for battery charging; 3 year limited warranty