The SEM functions in a fully automatic way as conventional boiler (Flow temperature controlled) and warms up the water in the heating-circuit (or in a heat reservoir). Simultaneously it produces electricity that may be used locally or fed into the public grid. Subject to contrary feeding rules, the SEM may be directly plugged into a power socket and thus may be integrated into the electric net very simply.
The system shows following technical data:
| Parameters | Value |
| Electrical power (after deduction of the own consumption) | approx. 1.2 kilowatt |
| Total operating efficiency (without use of the exhaust heat / gross calorific value technique) | > 90 % |
| Electrical efficiency | |
| (electrical output/combustible) | approx. 18 % (25 % planned) |
| Thermic power (Stirling process an additional burner) | 5 kilowatts (Peak performance planned to 15 kilowatts) |
| Process medium | Helium |
| Mean pressure | 35 bar |
| Upper process temperature | 650 ºC |
| Lower process temperature | 30°C- 60 ºC |