[Lariliss]

Thank you for sharing.
In my opinion, this kind of information should be not only in dedicated magazines, but in forums as well.
Mainly, if we are all reconsidering the economics of energy and searching for the best practices, the local examples bring them closer from 'somewhere else' to 'look around for possibilities'.

Cities with a heavy industry, the pollutants, may reconsider wasted energy for hot water supply, for instance. Sounds easy, but the initial infrastructure might be updated.