In a standard property configuration, where the solar power you generate is distributed into your property via an inverter, the Orison system will automatically charge using your solar. During normal grid operations (i.e. not during a blackout) Orison storage is designed to optimize your power to provide the cheapest energy possible. This means it will charge when you have excess solar production and discharge when your solar is not generating or when you are demanding grid power that is a peak pricing.