The tubra®-e-Therm C is a hydraulic unit with electronic target temperature control for thermal storage of PV electricity.

The compact hydraulic unit can be connected modularly to heating coils of hot water tanks with drinking water and buffer tanks with heating water. Retrofitting to existing drinking water and buffer storage tanks is easily possible. The tubra®-e-Therm C solution for self-consumption optimization in interaction with external energy management systems.

By power modulation from external energy management systems it is possible to thermally use the entire photovoltaic surplus despite fluctuating photovoltaic power production and fluctuating household power demand.

Depending on the external energy management system, even small and fluctuating surplus power can be converted into usable heat at a constant temperature. Thus, the storage tank is loaded in layers from top to bottom and usable heat is already available after a short time and the conventional, fossil fuel reheating is suppressed.

The electrothermal station

• Can be used on buffer storage tanks and heating registers of drinking water storage tanks.
• Optimal for retrofitting to existing storage tanks.
• Automatic pump control by target temperature control
• Energy storage in hot water tanks with significantly higher storage capacities than in batteries.

Fast power modulation up to 3000 W with eTherm C3 and up to 9000 W with eTherm C9.