Have we succeeded in reducing our household energy use?

In campaigning on environmental issues, I want to make sure that I’m not demanding changes from people that I’m not prepared to make myself. I want to be able to try things out and share what I’m learning. With these things in mind, I set myself a target a few years ago: get our house to an A rating for efficiency by 2020, and zero carbon by 2025.

I’ve tracked our progress along the way with some of the important steps: adding solar panels and battery storage, underfloor insulation and solid...