Parts. One litre water. 82% efficient hydro turbine/generator. Meatal piping. Electric heating element.
Figures. For Heating Flowing Water KW = Liters/min. x Temperature Rise (°C) x 0.076. 60 litres per minute x temperature rise 50*C = 3000 x 0.076 = 228KW.
One litre per second water flow 9 bar pressure = 720 watts.
Gas 50*C 200 bar pressure. Gas 100*C 7,000 bar pressure = available energy 6,800 bar pressure. Divide by 9 then multiply by 720 = 544KW.
Are those who write the figures con artists in their feilds ?