Invisible Heating Systems plan to install a Road Energy System, which uses heat absorbed by tarmac to warm water, in their car park. owever, this being Britain, torrential rain has meant the Midsummer Day start date has had to be put back.
It sould be a requirement that systems like this are included in any new road building. It might not work so well on urban roads, with all the utility pipes are running underneath them, but A roads and motorways should be viable.
Technorati tag: Road Energy System