SuperHome owners across the country are throwing open their doors this month to inspire others to reduce the energy needed to run their house.

These aren't high tech new builds, but old homes, that the owners have renovated to reduce carbon emissions by at least 60%. Convinced that seeing is believing, the owners will show visitors how they have achieved the savings, and tell the story of their renovation warts and all. They can talk about why they chose the measures they did and how well they work in practice.

Most of the homeowners have substantially upgraded their insulation - with many using a combination of internal and external solid wall insulation. Lots also have renewable energy installations ranging from solar water heating to solar PV and air source heat pumps.

More than 76% of the population now lives within 40 minutes of a SuperHome, so look at the website to find out if there's a SuperHome near you, what time, and whether you need to book in advance.

Also running on 11 and 12 September is Bristol Green Doors, where 52 houses in the city will be open to the public. They showcase how people have made their old houses more comfortable to live in, more energy efficient and cheaper to run.

In Norfolk, the CPRE is running a programme of guided tours of eco-homes, low-impact dwellings and energy-efficient developments between 23 and 26 September. You must book if you want to join a tour.

If you have a question about anything in the above blog, please ask it in the comments section below.