I did not mean to say they would operate at the supply network...

I did not mean to say they would operate at the supply network pressure levels, rather they have the option of operating at higher pressures because of the supply, the pressure of which they can easily reduce as required. You would hope that the preheating would use waste heat from the system - I think this is what the heat exchanger is used for in the current design.

I do wonder how they intend to test the inductive reactor at higher pressures. I presume the bio gas they receive is at a low pressure, so would need to be increased if they want to test the inductive reactor at higher pressures - which to my mind is the most important test they need to carry out on it.