For municipalities, corporations & district heating operators
The heat plant with which you also earn on electricity.
The summer electricity surplus heats your network. Directly in summer, doubly in winter.
Dezentrale Multi-Energie-Systeme // DMES
The summer problem of district heating.
In summer the network needs heat for domestic hot water. The load, however, is small, and wood-fired boilers and fossil boilers run at inefficient part load to serve it. Fuel costs and emissions continue to run, for a few degrees of hot water. At the same time the region produces a PV surplus in summer that is curtailed or sold off at rock-bottom prices. Two problems that can now solve each other. Elegant and economically highly attractive. The reference work “Areale und Quartiere” (ed. Gugerli, 2024) emphasises that seasonal stores play an important role in thermal networks, and names hydrogen as the route to seasonal energy storage.
Summer electricity becomes summer heat.
The DMES absorbs the surplus electricity. While it is charging, the waste heat of the electrolysis supports the hot water preparation and the summer operation of the network, entirely without fuel costs. The hydrogen remains stored in metal hydride, building-integrated and quiet. As soon as the system discharges, both come back. Electricity flows into the grid and into the region, and the waste heat of the reconversion to electricity feeds the heat network at up to 70 degrees, with every cycle run and then continuously in winter. This makes the DMES a thermal store as well, the most compact of its kind. The heat sits in the hydrogen molecule instead of in huge volumes of water that fill entire storeys. And DMES are not an invention of ours. In its summary, the National Research Programme “Energy” of the Swiss National Science Foundation states verbatim “Implement decentralised multi-energy systems (DMES)!”. According to the summary, it is the municipalities and their utilities that are called upon to identify potential and to enable implementation through energy master plans and active support. Since 1 January 2026, the legal framework has also been in place with the local electricity communities (LEG). Heat pumps in a network also benefit. With the heat from the DMES, the output they have to deliver and their dimensioning both fall. And in winter the DMES relieves the peak load. What the store delivers, the wood-fired boiler does not have to provide. That means fewer full-load hours, fewer emissions and more reserve on the coldest days.
Summer // surplus
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Photovoltaics
Own production on the roof
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Electrolysis
Electricity becomes hydrogen and heat
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H₂ in metal hydride
Solid state at 35 bar, inside the building
Winter // demand
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Fuel cell
Hydrogen becomes electricity and heat
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Electricity
Site, vZEV and LEG, grid
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Heat
Heating, hot water, heat network
over 75 % overall efficiency with combined electricity and heat use · over 30 years service life · 0.5 to 16 MWh per room · modularly scalable to over 100 MWh
The figures behind it.
Summer + winter
Heat in both seasons. In summer from the waste heat of the electrolysis, in winter from reconversion to electricity at up to 70 degrees.
30+ years
Service life of metal hydride. Infrastructure on a municipal horizon, a generational project. Storage performance is guaranteed by the manufacturer for over 20 years.
1000 t CO2
Decarbonisation that pays off. Your heat network meets the emissions reduction pathway measurably. From around 1000 tonnes of CO2 per year, state funding instruments open up.
29 MWh · 1.2 MW th
Reference design AREAL. 29 MWh of heat at 1.2 MW of thermal output, per single storage cycle. Added to that are 101 MWh of storage and 12 MW of electrical output.
Under 10 years
Payback possible, under ideal conditions.
> 75 %
Overall efficiency. With coupled use of electricity and heat.
Net zero is a heat project.
Anyone who decarbonises their heat network meets the emissions reduction pathway of the municipality measurably, year after year. The long-duration store works without rare earths and without lithium, 80 % of the production chain is in Switzerland. And on dismantling, the store of pure metal returns fully to the material cycle. That is circular construction, in heat infrastructure too.
One partner for the whole system.
One system, one point of contact.
System architecture, dimensioning, integration planning and business models come from eRevo. The partner ecosystem supplies components, contracting, HVAC, electrical, fire protection and conformity from one coordinated structure.
Energy Intelligence as a layer of its own.
Forecast-based control and multi-asset optimisation across electricity, heat, H₂ and grid supply. Every plant learns, every new one starts smarter.
Proven in real operation.
The world premiere in Eich LU has been running at full load since April 2024. Long-term service agreements and performance commitments secure the project term. Realised by the pioneer of decentralised multi energy systems in Europe, eRevo AG Energy Revolution.
The next step
Blueprint
We design your network, with the heat load profile, PV potential, grid costs and the complete business case. You see when the plant pays for itself and what it earns for decades afterwards.