Solar Decathlon

The Solar Decathlon here in Europe 18 to 27 June was organized by the Spanish Ministry of Housing, in collaboration with the Universidad Politecnica de Madrid. Seventeen energy efficient houses competed. The winning house, Villa Solar, produced three times more energy than it used with the energy surplus going to the grid.

Our house here in southern England is also a mini power station, although much more modest than Villa Solar. Now, in midsummer, I am proud that we are generating more power than we use. However we live in an old-design house and making the full transition to an energy neutral house will be hard. If we commissioned a new house now, I have total confidence that the engineers and architects can respond to a brief that requires it to be energy neutral. If customers state this as their requirement, it will be so. Of course the house will cost more. Better houses (that are cheaper to run) do cost more and it is about time we got used to that idea.

Depressingly, I met an academic, who teaches building design, who thought that the government’s long-term targets were not achievable. My assurance that it is possible if you throw away the old design text books fell on deaf ears. I received a reply along the lines of “This is how we teach, how I have taught for years and I am the expert.”

Despite such intransigence, I believe that the house building industry is up to the challenge. Not the large house builders who want to complete quickly and sell on. They do not yet detect a demand strong enough. They will keep their blinkers on to defend their immediate profit margins. It is the small builders building premium houses for the wealthy end of the market that will lead the way.

Over 190,000 people visited Villa Solar during the competition. I would have liked the university lecturer I met to have been one of them. I suspect he was sat at home thinking of other tactics to prevent him from having to rewrite his lecture notes.