We do not always need electricity as an output. Even then, you can combine SOFCs with gas turbines and still get an electrical output. Efficiency is still very high.

The equipment is mostly made out of steel or other cheap materials. You read about using fiberglass or HDPE for a lot of the components. Those aren’t expensive materials. Certainly, way cheaper than what batteries use. Transportation is via pipelines which is 10x cheaper than wires. The costs of infrastructure should be very cheap.

> Further solar panels and wind turbines got cheaper due to learning effects. These effects are not present for over half of the things involved in a hydrogen fuel system. Pumps and tanks and valves and pipes are already mass produced.

Solar panels and wind turbines are over a century old. Hell, wind power existed for millenia in form or another. But as it turns out, it still benefits from the learning effect. So you’re just spouting more of your anti-progress agenda here.