For HVAC & electrical engineers
Your scope grows. The effort does not.
New technology, familiar interfaces.
Dezentrale Multi-Energie-Systeme // DMES
Your clients are asking about storage.
Emissions reduction pathway, self-consumption, grid costs. Building owners increasingly demand energy concepts with long-duration storage, and the planning for it lands on your desk. The solar obligation and the negative feed-in prices to be expected from 2027 sharpen this further. Whoever builds PV needs the storage to go with it. For a practice, new systems quickly mean extra effort, unclear responsibilities and liability questions. That is exactly what must not happen. A DMES is therefore planned like building services, not like a research project. With a guidance note, operating data and defined interfaces.
Where HVAC and electrical plan the same system for the first time.
Everyone stays within their own discipline. A DMES supplies electricity and heat from one energy centre. The thermal integration remains entirely with the HVAC engineer, that is heat extraction, hydraulics and the connection to heating, hot water or a heat network. The electrical integration remains with the electrical engineer, that is connection, protection concepts and the metering concept for vZEV and LEG. Nobody has to move into another discipline, the system architecture in between comes from eRevo. At the client's request it can be planned as grid-replacement operation for the building, black-start capable and with autonomy for days thanks to long-duration storage. Whether that is possible and sensible at the site is something we examine case by case. And because the heat sits in the molecule, the DMES is at the same time the most compact seasonal thermal store, without the huge water volumes of conventional stores. For your practice this means more planning scope within your own discipline and a field of expertise that only a few have occupied so far.
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 planning bases.
SVGW H10001
Your planning basis. The guidance note for building-integrated H₂ systems governs safety and approval, co-developed by eRevo.
Since April 2024
Operating data instead of a brochure. The plant in Eich LU runs at full load and supplies robust design values.
35 bar
Low pressure. Solid-state store in metal hydride. No self-discharge, no compression.
0.5 to 16 MWh
Per room. Modularly scalable to over 100 MWh, planned like a plant room.
30+ years
Service life. Designed as long-term infrastructure, storage performance guaranteed by the manufacturer for over 20 years.
> 75 %
Overall efficiency. With coupled use of electricity and heat.
You plan as always. Only on a better system.
eRevo supplies system architecture, dimensioning and integration planning with defined interfaces for both disciplines. The specialist planning remains entirely with you, and the DMES increases its scope. The reference work “Areale und Quartiere” (ed. Gugerli, 2024) locates battery stores with day-night balancing and seasonal storage with hydrogen. That is precisely the system you plan with us.
Your lead as a practice.
More planning scope within your own discipline.
The energy centre extends HVAC and electrical planning by an additional system. Your fee base grows with it, without you having to build up a new specialist field.
Clear interfaces, clear responsibility.
System architecture and component responsibility lie with eRevo and the manufacturers. You plan the integration according to familiar rules, from the preliminary study to commissioning within the SIA phase model.
The field of expertise that only a few have occupied.
Whoever plans the first DMES projects today is tomorrow the practice that building owners and architects recommend. Realised by the pioneer of decentralised multi energy systems in Europe, eRevo AG Energy Revolution.
The next step
Specialist planner briefing
One hour, at your office. We present the system, the interfaces and the operating data from Eich, for HVAC and electrical together or separately. Afterwards you know what a DMES means for your planning and where your scope grows.