Free tool
Compare appliances
Compare two energy inputs on the same annual basis.
Decision tools
Household appliance tools
Move from a single running-cost estimate to comparisons, payback, household planning and an approximate cooling-capacity guide.
Free tool
Appliance payback calculator
Test whether net savings recover upfront costs.
Free tool
Household appliance basket
Save, rank, edit, export and print appliance estimates.
Free tool
Air-conditioner size calculator
Estimate an approximate room cooling-capacity band.
Free tool
Electricity unit-rate helper
Find or estimate the p/kWh value required by calculators.