There are many ways to frame a documentary about solar power; many ways to go about extolling the virtues of clean energy. The most obvious would be to pursue the following line: hit hard by the effects of climate change, the world can save itself by building a sustainable future in renewable technology. It’s also a message that falls squarely in the tell-us-something-we-don’t-know box. Many moons have passed – and much discussion has transpired –…