Solar module prices reached a new low this week, says Leen van Bellen, business development manager Europe for Search4Solar, a European purchasing and selling platform for solar products. He tells pv magazine that prices will remain low in the short term.
The expense part gets taken care of with OP’s solar prices. Battery costs help too.
Not at all. Hydrogen electrolysis efficiency is about 70-80%. When turning it back into electricity, fuel cells are 40-60% efficient. That means your electricity costs are about double for the complete round trip.
Conversely, lithium batteries (and most other types) are over 90% efficient and directly give you electrons.