If Germany were to rely just on solar and wind, the low capacity factor would likely require massive grid storage. The only large scale grid storage we have at

If Germany were to rely just on solar and wind, the low capacity factor would likely require massive grid storage. The only large scale grid storage we have at this point is pumped hydro and that isn't scalable. For example, one estimate is that for Germany to rely only on solar and wind would require about 6,000 pumped storage plants which is literally 183 times their current capacity. If making more grid storage was cheap and easy, we would have built it decades ago. This is why Germany is still burning so much coal. https://www.econstor.eu/bitstream/10419/144985/1/cesifo1_wp5950.pdf https://www.econstor.eu/bitstream/10419/144985/1/cesifo1_wp5...