In Skive Municipality, the adventure with solar panels started in 1994 with the construction of 375 m2 large collector at Højslev school.
Project description
With the plant's size, they could reduce their school's annual total heat consumption by at least 25%. Half of the plant area is equipped with reflectors to achieve between 25-30% greater performances than the "normal" area. In summer, the plant supplies the surplus to the local district heating company Søby-Højslev District.
The solar heating, which was installed in 1997, is a traditional automatic, but we choose circulating pumps with engines that can be speed regulated when we want the variable flow in the solar panels. In two of the major sites we have chosen to show that it is possible to jointly build solar cells and solar panels. The thermal energy from the solar panels is pumped around by using energy from solar cells. There are some specific choice energy density DC motors – permanent magnet motors that are connected directly to solar cells. This means that there is no wasted or lost energy by the revenue from direct current to alternating current in a converter.
Financing
Out of the approx. 9 million DKK, which Skive Town Council have committed to energy-saving measures in 2009, earmarked are 2.736 million for the construction of 22 new solar panels in the day care centres that have not yet solar panels. Furthermore, within each day care centre, there is created automatically energies registration systems similar to the system currently in use in all other municipal buildings in Skive municipality. Solar installations will have an expected payback of approx. 12 years.
Status and results
A lot of hot water has run through Skive's many plants since 1994, and facilities are now considerably expanded. The total solar surface area, which is already established, is 2,747.5 square meters, but in addition the area on 22 new plants will be built in 2009-10.
All plants are equipped with energy meters so that users can monitor the energy-savings.