Solar & electricity
Plan home energy use, solar and running costs.
Solar size and generation
Explore panel counts, roof area and estimated solar generation.
Solar savings and payback
Estimate self-used solar power, bill savings and payback from your home data.
Battery capacity and backup runtime
Start with the essential load and backup hours you need, then compare a battery model if you have one.
Appliance electricity costs
Estimate energy use and costs from appliance power and running time.
Room lighting and bulb quantities
Estimate fixture counts from area, a lux target and fixture lumens.
Backup generator load and starting demand
Sum simultaneous running loads and one largest additional start demand.