HH2E was initiated in 2021 by Alexander Voigt and then co-founded by Andreas Schierenbeck. The idea: to build electrolysers at old power plant or industrial sites as standardised as possible. In a first phase, with a total capacity of 100 MW each and a production of 6,000 tonnes of hydrogen. In a next phase, the capacity at the individual sites is to be scaled up to one GW. A special feature of the concept: the electrolyser is combined with a battery. I spoke with Andreas Schierenbeck about the status of the developments.
ener|gate Gasmarkt: Mr Schierenbeck, if I understand correctly, in your planned plants you are combining an electrolyser with a battery to ensure the highest possible utilisation of the electrolyser.
Mr Schierenbeck: I see it in two dimensions. On the one hand, we want to cap the peaks of electricity production from renewable energies that would otherwise be curtailed. These hours are particularly cheap and should then be stored in the battery. This will become even more important as renewables expand, because the grid is not expanding fast enough. The second dimension is indeed optimising the operating hours of the electrolyser. It can run much longer and much more evenly around the optimal operating point. This makes many processes related to electrolysis much easier...
