Solar and batteries can power the world (nworbmot.org)

The article argues that sharply falling solar and battery costs could make them the dominant electricity source for most of the world, with solar-plus-storage supplying about 90% of electricity for roughly 80% of people at under 80 €/MWh in a 2030 scenario (including a small amount of backup fuel). It notes that higher costs concentrate in high northern latitudes because winter sunshine is low, where adding wind or other low-carbon sources can help. The author also stresses that results depend on assumptions about battery prices, backup fuel costs, grid and land constraints, and seasonal demand not being modeled.