I made a post a while back about its slow take up. https://hotcopper.com.au/posts/25425963/singleI wonder if it's not much more efficient than a combined cycle gas generator with more complexity.
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch