Umschaltgerät (Energiemanagementsystem) SWD-800 Fothermo
Switching Device (Energy Management) SWD-800 Fothermo
FEED EXCESS ENERGY INTO YOUR OWN POWER GRID
The fothermo switching device reduces both your hot water and your electricity costs. It feeds excess electricity from the photovoltaic boiler via a 600 W or 800 W micro PV inverter (balcony power plant inverter).
inverter) into your own house network.
As soon as the photovoltaic boiler has reached the set maximum temperature (e.g. 65 °C) or more photovoltaic
If there is more thermal power available than the boiler can convert into hot water, the excess
energy available is fed into the power grid.
Up to four photovoltaic modules can be connected to the switching device. The total performance is thus-
with up to 2000 W. Intelligent algorithms ensure that, especially on sunny days, the output of one or two photovoltaic modules is fed into the house electrical network via the inverter as a base load early in the morning.
is fed. This optimizes your own consumption.
Since a maximum of 600 W or 800 W of power is fed into the power grid, the entire system falls under the category of
gorie “balcony power plant” or “plug-in solar system”. The entire
system can be easily plugged together using simple photovoltaic plug contacts.
Set 1: 80 litre hybrid boiler with surplus feed
You primarily prepare your hot water using photovoltaics. If there is excess photovoltaic power, this energy is simply fed into a micro PV inverter. This allows you to use excess energy to reduce electricity costs.
Configure your own hot water supply with surplus feed-in. We recommend the following products:
- 1x fothermo 80 litre hybrid boiler
- 4x photovoltaic modules
- 2x 10m extension cable (switching device to the boiler)
- 4x 5m extension cables (from the photovoltaic modules to the switching device)
- 1x fothermo switching device
- 1x Micro PV inverter
Configure your own hot water supply with surplus feed or use our pre-assembled set.
Set 2: Heating element with surplus feed
Support your existing gas, oil or pellet heating system in producing hot water and reduce your energy costs.
Configure your own hot water supply with surplus feed-in. We recommend the following products:
- 1x photovoltaic heating element
- 4x photovoltaic modules
- 2x 10m extension cable (switching device to the boiler)
- 4x 5m extension cables (from the photovoltaic modules to the switching device)
- 1x fothermo switching device
- 1x Micro PV inverter
Configure your own hot water supply with surplus feed or use our pre-assembled set.
Storage tank with surplus feed-in
Ideal for a 2 - 5 person household.
We recommend the following products:
- 1x fothermo 200 litre storage tank
- 6x photovoltaic modules
- 3x 10m extension cables (2x from the photovoltaic modules and 1x from the switching device to the storage)
- 4x 5m extension cables (from the photovoltaic modules to the switching device)
- 1x fothermo switching device
- 1x Micro PV inverter
Configure your own hot water supply or use our pre-assembled set.











