Smart Energy Green City’s work regarding Avedøre Green City

The Avedøre Green City initiative is the first practical energy community established in Denmark with the company EBO and Avedøre District Heating as key players.

Here, European Green Cities has managed to get an application approved from the EU’s ELENA programme, which can finance a large part of the extra expenses needed through a special loan from the EU Investment Bank.

The Smart Energy Green Cities project, which is supported by the Danish Energy Agency, has had a special focus on developing Smart Energy solutions that can be included here.

The main result has been a special effort from the company Solarplan on how to incorporate large solar cell areas especially in Avedøre Stationsby. This is combined with a number of calculations with Enopsol’s special Smart Energy calculation program, which is carried out in Excel and which calculates on so-called ATES systems with groundwater heat for district heating in interaction with heat pumps, and where special PVT solar cells can also be used, where the solar cells are both power-producing and at the same time provide a significant solar heat contribution. ATES stands for Aquifer Thermal Energy Storage.

These calculations show both a reasonable user and society economy for a total PVT photovoltaic system of up to 20,000 m², which for 2,000 apartments can be used together with a larger ATES system and central heat pumps, as an alternative to the normal district heating supply.

For Avedøre Village with approx. 90 homes, an investigation has been made regarding the possibilities of fitting PVT photovoltaic systems, while at the same time calculating an ATES system with only 2 wells that supply groundwater heat in combination with heat pumps.

Here, both a system with a central heat pump system and a system with so-called “cold” district heating, which is sent to the homes in uninsulated affordable plastic pipes have been analyzed, where individual heat pumps provide the necessary heating. The advantage here is that the system losses will be very limited, so that a CO2 saving of at least 92% can be achieved compared to today.

Principles of BIPV integration into roof surfaces in Avedøre Stationsby. Solarplan v. maa. Klaus Boyer Rasmussen

Avedøre Stationsby

Avedøre Landsby