Home Energy Savings Calculator

Our home energy savings calculator estimates bill reductions from energy efficiency improvements. Loft insulation, cavity wall fill, smart thermostats, and solar panels. Typical payback periods range from 3-12 years.

Start by entering your current annual energy bill from your most recent statement. Select your property type — detached properties lose more heat from exposed walls, making insulation improvements more valuable. Your EPC rating indicates your current efficiency baseline: G-rated properties have the most to gain from improvements. Work through the Improvements Planned checklist, ticking measures you are actively considering. Savings shown are based on Energy Saving Trust and government research for typical UK homes — actual savings depend on your current usage patterns and specific property construction. Loft and cavity wall insulation typically offer the fastest payback. Heat pumps and solar panels have longer payback periods but may qualify for government grants — check the Boiler Upgrade Scheme at gov.uk for current support available.