Our devices create a complete energy solution to use renewable sources when they are available, and fall back to the grid or fossil sources when required. We are tackling the challenges through several stages. Our first products focus on using solar for more than just electricity. The SunHopper™-D device uses a dedicated array of solar PV panels along with an optional grid connection to retrofit to existing electric water heaters. These devices are a large consumption of domestic energy and are an effective thermal battery. The thermal energy storage is a renewable energy "battery" to effectively store energy for later use.