Synapse 7.2kW dual solar MPPT (4000W X 2) inverter with hassle free change over UPS functionality. Pair this up with the correct size battery bank and go partially or fully off grid. Both the Ren Tech & Hubble batteries (Prismatic Lithium Ion cells) work well with this inverter. Costs include installation, CoC costs not included. This kit can keep an entire household operational during load shedding if sized & setup correctly.