About the Home Energy Audit Calculator
The cheapest clean energy is the energy you never use.
This audit highlights where your home leaks money and how much you can save.
How this calculator works
We score your home across heating, insulation, lighting and appliances, then estimate potential annual savings.
Why it matters
- Find quick, low-cost wins
- Prioritise upgrades by payback
- Cut bills before adding solar
- Improve comfort and value
Frequently asked questions
Insulation, air sealing and heating upgrades usually deliver the biggest savings.
This gives a solid starting point; a professional audit adds precision for major works.