Achieving 100% renewable energy was not so long ago seen as a dream. Now recognized to be viable, many cities around the world have set such targets.

Still it is not a trivial task to get to 100% renewable energy, while at the same time ensure reliable and affordable electric power. A key enabling factor is being connected to a large and robust electric grid.  It gives access to remote renewable resources and it is the most cost efficient way to balance the variability of wind and solar. Let’s take a closer look at a couple of cases.