Energy

Estimate a simple household electricity bill from use and an all-in unit price.

Estimate annual bill savings and simple payback from a solar panel system using your electricity use, production, and costs.

Estimate the peak electricity demand of appliances used at the same time.

Check estimated electrical load against the capacity of your main fuse.

Estimate the electricity use and running cost of a water heater.

Calculate the estimated electricity cost of running a panel heater.

Estimate the grid tariff impact of your monthly peak demand.

Estimate electricity savings from reducing a home's heating demand.

Estimate potential bill savings from shifting household electricity use with a battery.

Calculate estimated electric vehicle charging duration.

Estimate annual energy savings, running cost and simple payback time for a heat pump compared with direct electric heating.

Calculate the electricity used and cost to heat water for a shower.

Estimate seasonal and annual electricity costs for a Norwegian cabin, including your own usage, electricity price and fixed monthly charges.

Estimate daily, monthly and annual electricity use and cost for an appliance from its power, hours of use and electricity price.

Estimate useful heat, firewood needed and seasonal heating cost from your heat demand, wood price and stove efficiency.

Plan home EV charging costs from your monthly driving, vehicle efficiency, charging losses and home electricity price.