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.
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The studies on hydrogen pipelines tend to assume there’s some existing reservoir of hydrogen. Making hydrogen in a green way is expensive, and that completely ruins its economic viability.
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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.
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