A new forerunner project on the large scale solar thermal market in which Savosolar has been involved: The first solar thermal field with double glasses collectors on trackers. This innovation has been done to optimize the annual solar production with a limited available area. This new solar thermal plant is a property of newHeat and will delivered heat the network of the city of Pons, which is managed by Dalkia.
Savosolar supply on this project consist in the complete solar field field as a turnkey solution, it means, the design, the supply and the installation of the solar collectors and its trackers, as well as the piping, until the solar station. It represents 112 Savo 15 DG-M collectors, which will reduce of 210 tons per year the CO2 emissions for the city’s heat needs.
FORS A/S is an energy company owned by three Danish municipalities. Their district heating plant in Jyderup has about 900 customers and produces about 5000 MWh solar thermal energy per year. For the rest of its energy production, the plant uses two gas boilers with 7 MW thermal capacity and two gas engines with 6 MW electrical capacity.
In Jyderup, the collector field is a so-called hybrid field, with both single and double glazed collectors. The single glazed collectors are in the cold end of the collector rows and increase the low temperature as rapidly as possible, while the double glazed collectors are located in the warm side of the collector rows where it is more important to reduce the heat losses. The collector field also has double stanchions which allows for two collector rows to connect to one and the same pipe and thereby save costs and thermal losses.
Brewing is a very suitable application for solar thermal systems, because of the relatively low temperatures used in several production phases.
In the brewery of Flecks in Frohnleiten, a solar thermal system with Savosolar collectors is used to support the hot water production required by the brewing process. The heat from the collectors is stored in four 3,000 litre water tanks for later use in the brewing process. The mounted collectors also act as a rain shield.
Onnelanpolku nursing home, which was built in 2013, is a so-called near zero energy building. To achieve this classification, the building needs to be well insulated and some of the consumed energy needs to be produced locally. A hybrid heating system for DHW and space heating was realized with the combination of solar thermal collectors and district heating.
Savosolar delivered 240 m² of collector area, which is used to cover 20–30% of the total thermal energy need of the building.
