DEU 250 kW
The DEU 250 kW is a modular industrial Solid Oxide Electrolyser System designed for Pilot-scale hydrogen production. Powered by Dynelectro’s proprietary AC:DC architecture, it delivers industry-leading efficiency, ultra-low degradation and dynamic operation in a scalable containerised platform. Enabling industry-leading SOEC stack lifetimes of 7–10 years under industrial operating conditions.

Engineered with precision
Each 1 MW module is designed for seamless integration into existing industrial plants and scalable installation up to multi-MW configurations.
Documented performance
Tested for 25,000 hours at ultra-low degradation rates (<0.05 % per 1,000 h), Dynelectro’s technology delivers proven performance, long-term cost advantages, and a scalable pathway to net-zero industrial operations.
- Low stack degradation – enable 5x SOEC stack lifetime extension due to alternating AC/DC operation – <0.05% stack degradation per 1,000 hours
- Increase H2 output – 50% higher hydrogen output per power unit vs. Alkaline / PEM electrolysis
- Reduced cost – 20% lower LCOH vs. other PtX technologies
- Dynamic operation / Variable Load Following – ideal for fluctuating renewable input
- Ancillary Grid Service offering possible – flexible operation enables availability for FFR / FCR / FRR capacity offering.
Technical Specification:
| ELECTRICAL RATING | |
| Max. System power consumption | 0.275 MW |
| Power consumption (stack) | 33.5 kWh/kg (3 kWh/Nm³) |
| Power consumption (system) | 37.8-40 kWh/kg H₂ (3.4-3.6 kWh/Nm³ H₂) |
| System electrical efficiency with heat integration | ≈ 90% (electrical) |
| System electrical efficiency w/o heat integration | > 70% (electrical) |
| HYDROGEN PRODUCTION | |
| Max. Production rate | Up to 5.4 kg/h (64 Nm³/h) |
| Operational pressure | 0.025 bar(g) |
| Hydrogen purity (dry) | > 99.9 % |
| Hot start-up time | <10 minutes |
| Dynamic operation | 5-100% load (idle to full load) |
| Dynamic load change response time | < 30 sec (5-100%) |
| WASTE HEAT / STEAM INPUT | |
| Operational pressure | 4.5-6 bar(g) |
| Temperature | 150-200 °C |
| Consumption | 64 kg/h |
| ADDITIONAL SPECIFICATIONS | |
| Ambient temperature | -20 °C to +40 °C |
| Footprint | Approx. 3m x 6m (20 ft container) |
| Stack lifetime | <0.05 % degradation per 1,000 hours |



