A significant feature of the energy self-supplying systems is its variability which can be adjusted to every
building, every weather condition (land, wind, sun etc) and also to the requirements of the customer.
The energy self-supplying system can be flexibly created and varied in
the following two main areas:
Regenerative primary energy sources: individual and optimum selection options according to the local conditions
System: individual and optimal formats of the technical unit components / modules in accordance with
customer’s needs or desire
Especially sun energy, wind energy, if appropriate biomass energy, if
appropriate hydropower are considered as primary energy sources for supply.
For most building owners with energy self-supplying system following primary energy sources are
Pure sun energy (photovoltaic)
Sun and wind energy (hybrid system, photovoltaic and house wind- or small wind turbine)
Pure wind energy (house wind- and small wind turbines)
Following parameters have to be discussed when determining and choosing the proper primary energy
Is it possible to reach an average more than 80 % of the nominal capacity of the house wind turbine or small
wind turbine on location? (“windy area”, pre determination through data of the National Weather Service?)
How high is the sun radiation? Where respectively how can the photovoltaic modules be installed on the buildings
Are there potentially other local energy sources (e. g. hydropower through adjacent
How much energy is needed for the building heat output (insulation house, glassing, existing heating system
How high is the need for hot water?
How high are the total electricity costs?
Other than the choice of the available economically useful regenerative energy sources, following separate system
variations respectively installations and expansions are especially appropriate, recommended and practicable for the self-supplying system:
Energy self-supplying system with or without heating support. On demand with 100 % heating
Energy self-supplying system with or without warm water treatment support. On demand with 100 %
warm water output self-supply
Energy self-supplying system with or without electricity storage circulation. Electricity
storage volume individually expandable
Energy self-supplying system with or without re-supply of the electricity output into the public
electricity net (“energy feed-in rate")
Energy self-supplying system also as isolated solution available “Off-Grid” for remote lots
respectively buildings without a connection to the public electricity net
As you can see, almost all wishes and requirements of the customers can be met.
Our licensed specialist trade companies are ready to consult with you.