One of the best ways to make buildings greener is to cover them with solar panels — turning homes, offices, and factories into clean energy generators. Rooftop solar is particularly popular in the Netherlands because, well, it’s a tiny country with lots of people, where every square inch counts. Adding solar panels to the empty exterior of a building, rather than occupying swathes of countryside, simply makes sense. Rooftop makes up the largest number of solar installations in the EU, and demand is skyrocketing. But, while solar panels will be an increasingly common feature of architecture going forward, for some…
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