Make your home work harder.
Understand your energy efficiency, explore solar potential, and find ways to reduce your bills, all from your postcode.

Know Your EPC Rating
See your current energy efficiency rating, what it means for your bills, and how it compares to nearby homes.
Solar Potential
Find out how much energy solar panels could generate on your roof, based on your location and orientation.
Compare With Your Postcode
See how your home's rating and costs stack up against the average for your postcode and your neighbours.
Cut Your Bills
See the improvements recommended on your home's EPC and what they could take off your annual energy spend.
Track improvements over time
See your full EPC certificate history and how your home's efficiency has changed with each assessment.

See your official EPC
The certificate in its familiar format: current and potential rating, plus how each part of your home performs.

See how your area performs
Average EPC rating for your postcode, typical costs, and the potential savings homes around you are leaving on the table.

See how green your grid is
The generation mix for your local area, season by season: how much of your electricity comes from wind, solar and nuclear, and how clean it really is.

Frequently Asked Questions
How can I improve my home's EPC rating?
Common improvements include adding loft or cavity wall insulation, upgrading to a condensing boiler or heat pump, installing double or triple glazing, and adding solar panels. Our reports show you which improvements would have the biggest impact on your specific property.
Is solar worth it for my home?
It depends on your roof orientation, local shading, and electricity usage. Postcode Energy uses PVGIS satellite data to estimate your solar generation potential. South-facing roofs in England typically generate 800-1000 kWh per kWp installed per year.
How accurate are the energy cost estimates?
EPC cost estimates use standardised assumptions about occupancy and heating patterns, so they're best used for comparing properties rather than predicting exact bills. Alongside your EPC rating, we show live energy tariff rates for your region so you can see what typical bills look like today.
Do I need a new EPC?
EPCs are valid for 10 years. You'll need a new one if you're selling or renting, or if you've made significant improvements and want your rating updated. Our reports show when your current certificate expires.




