Solarpanele, Boardinghaus Eching

Environment & Climate
Sustainability at Boardinghaus Eching

Eco-friendly business practices and the economical use of resources are a daily routine for us! Find out which measures we have taken and how you can help us to reduce the ecological footprint of our accommodation.

Power and heat

Combined heat and power plant

Our combined heat and power unit produces an electrical output of approx. 20 kW and, by means of cogeneration, a thermal output of 39 kW. Similar to a car engine, energy is generated by using a fuel. However, unlike the combustion engine in a car, the waste heat generated during combustion is fed into a connected (coupled) heating system and is thus used for heating and hot water. On-site production eliminates the losses associated with distributing electricity and transporting heat over long distances. As a result, our power plant achieves an overall efficiency of around 95% under full load, earning it the highest possible energy efficiency rating of A++.

Photovoltaics & Energy Storage

During the day, a solar thermal system contributes to the boarding house's hot water supply.
Added to this we generate CO₂-free electricity from our 3 photovoltaic systems with a combined maximum output of approx. 47 kW.
On sunny days, they charge 3 energy storage units, which together can store up to 42 kWh of electricity and absorb the surpluses during periods of low demand and compensate for the increased energy demand during peak loads.

On average, each person in Germany consumes about 1,300 kilowatt hours (kWh) of electricity per year, which corresponds to about 3.5 kWh per day. Our combined heat and power plant runs at full load for an estimated 5,500 hours a year, generating over 100,000 kWh of electricity, enough for about 80 people. Our energy storage units, in turn, store enough energy to supply an average of 12 people with energy for an entire day.
Alexander Krimmer, Energy Consultant, HVK Eching

Saving measures

Heat recovery system

Wärmerückgewinnung
Otterinfo, CC BY-SA 3.0, via Wikimedia Commons

In the buildings constructed in 2020, a ventilation system replaces the stale air in the living areas with fresh air from outside. The heat contained in the exhaust air is stored in a heat exchanger and almost completely transferred to the incoming fresh air. This significantly reduces heat loss. Additionally, special filters purify the outside air of pollen and dust, ensuring a pleasant indoor climate where even people with allergies can breathe freely.

Groundwater cooling

The on-site restaurant is also a great place to be on hot days, as it features an environmentally friendly groundwater cooling system. Cold groundwater is extracted, filtered and fed into the roof of the building, where heat is exchanged. This method of cooling consumes virtually no electrical energy, only the pumps require electricity to overcome the friction of the water in the pipes.

Environmental protection

Logo Umwelt- und Klimapakt Bayern

Bavarian Environmental and Climate Pact

Boardinghouse Eching has been participating in the Bavarian Environmental and Climate Pact since mid-2021. The initiative of the Bavarian State Ministry of Environmental and Consumer Protection aims to motivate companies to make voluntary efforts to protect the environment. The prerequisite: proactive environmental protection efforts that go beyond the legal requirements and the promise to continue operating sustainably in the future.

How you can contribute

Please feel free to contact us on any topic related to the boarding house, we will be happy to answer all your questions. Be our guest and make a contribution to environmental and climate protection.