Sol Donum (Latin for ‘Sun Gift') provides you with a portable and reliable clean energy system for powering your home or business. Designed and made in the USA, we offer the Vulcan and Energy Stores. The Vulcan is completely turnkey and operates using an Inverter-Charger, and the accompanying self-charging Energy Stores make a perfect pair.The Vulcan is your portable Plug-and-Power alternative to permanent installation storage batteries and gasoline generators. Vulcan's modular design supports unlimited energy storage capacity, multiple solar charge controllers and AC chargers allows for solar panels optimization and constant charging times regardless of storage capacity, and automatic AC transfer switching to allow for full time operation. The Inverter-Charger outputs 2KW of filtered 120V AC power that it develops from your solar panels or grid power. The Energy Store stores your energy in safe, high-energy density Lithium Iron Phosphate batteries (LifePo4) in 2.6KWH and 3.6KWH increments. You can easily add more energy stores for unlimited storage potential and self-reliance off-grid.