From a Strange and Compelling Future:

Most biofuels are produced from plant material that is created through photosynthesis, a process that converts solar energy into stored…

Full text: http://www.biofuelsdigest.com/bdigest/2015/09/24/and-now-from-a-strange-and-compelling-future-the-digests-2015-8-slide-guide-to-electrofuels/