> Why not use the excess to create hydrogen and store it?
This is a very popular idea, but it doesn't work out as well as it sounds. The reason is that electrolyseurs aren't free, the capital costs are high. Not saying this is impossible, but it's challenging to make this economically feasible.
One more thought is that you can basically adapt all industry production to excess energy. I think the reason people want to do this with hydrogen electrolysis is because a) it's new and b) they associate both with energy transition. But neither means it's the best option.
This is a very popular idea, but it doesn't work out as well as it sounds. The reason is that electrolyseurs aren't free, the capital costs are high. Not saying this is impossible, but it's challenging to make this economically feasible.
One more thought is that you can basically adapt all industry production to excess energy. I think the reason people want to do this with hydrogen electrolysis is because a) it's new and b) they associate both with energy transition. But neither means it's the best option.