The van includes solar panel abd mttp charger connected to the engine battery then split chargers connecting to 2 100ah battery's wired in parallel.Theres a 240 hook up which supply's power to boiler and 12v charger.Theres a 100 litre watertank under the van that has a submerged pump to supply boiler/shoer and sink.12 v fridge,12 v diesel heater.In all close to complete camper with trusted banana engine,12 month mot and log book