17 December

I'm going to post about this curve a lot. It explains why experts call renewables not just a replacement energy source for the grid, but a 'superpower' source. Students of economics will recognise it as a marginal cost curve. The marginal cost is the cost to provide one extra unit of something, and it often produces a 'u-curve' like the one below. Showing that once you reach a certain economy of scale, costs fall dramatically and it becomes extremely cheap to produce additional units. In fact the marginal cost can be near zero, which it is for renewables. This explains why we're living in the middle of an almost unbelievable revolution right now. I'll do more posts to show examples of why.