When public solar roofs turn into a flexible and collective regional resource

For many towns, installing solar panels is no longer the hard part. The harder question comes afterwards: how can locally generated electricity be used where and when it brings the greatest value? A school may export surplus power during the holidays while a nearby swimming pool or pumping station still buys electricity from the market.The eleven municipalities of Salzburger Seenland, a region of 44,000 people in Austria’s Salzburg Lake District, decided that municipal boundaries should no