It's annoying that in this article it's pretty obvious what the main downside is, namely the likely very high cost of producing Solein (electricity, labor, mach

It's annoying that in this article it's pretty obvious what the main downside is, namely the likely very high cost of producing Solein (electricity, labor, machinery), and the author and company make no attempts to address this issue. In particular the fact they proudly announce they are using "renewable solar energy" make me suspect a high amount of electricity is needed per gram of Solein. Edit: my suspicion is semi-confirmed by HN user achenatx: their process starts with water electrolysis. That alone means one kg of H₂ requires a minimum of 50 kWh, costing 5 USD (at $0.10/kWh). How much Solient do they produce from 1 kg of H₂?