As a general contractor, Savosolar built a solar thermal system on behalf of Fernwärme Ettenheim GmbH for the largest possible solar feed-in into the existing district heating network. 112 pieces Savo 15 SG-M large collectors generate fuel-free healthy heat, which is temporarily stored in two 100 m³ buffer storage tanks.
This also allows the operating hours of the CHP and the biomass boiler to be optimized. The scope of delivery included the fence and video surveillance system, as well as the creation of a meager meadow to enrich local biodiversity.
The construction work was temporarily interrupted due to the COVID19 restrictions. All system hydraulics were completely housed in a container. The keys were handed over in October 2020.
A PV system still to be built on the east side will generate the electricity for the pumps in the future.
The picture on the left shows the boiler house and the buffer storage tank. Handover of keys from Jari Varjotie, CEO Savosolar Oyj, to Peter Blaser, managing director of the customer.
This solar thermal plant, the largest in Europe for industrial process, will deliver on average 4,000 MWh/year of heat. It will cover nearly 32% of the heated water need for the steam generation in the local paper mill. With the very high solar yield – more than 1,000 kWh/m2 – this solar thermal field is the first of its kind in the world due to Savosolar high efficiency solar collectors installed on a single-axis tracking system, manufactured and installed for Savosolar by Arcelormittal, Project Exosun. 66 tilting structures, each carrying four 16 m2 collectors, follow the sun from morning to evening and maximize the heat production.
The project was developed and financed by NewHeat and Savosolar acted as the EPC contractor. Meaning, Savosolar designed the whole system, delivered the solar collectors, and realized the installation with local French companies. This installation will be a reference for the huge growing market of heat-as-a-service for industrial clients in France and world-wide.
In collaboration with Eiffage Energy Systèmes, Savosolar is providing a solar thermal plant on trackers to supply heat to the greenhouses of Les Serres Vermeil, an organic vegetable grower located in Palau-del-Vidre, France.
Savosolar with provide a turnkey solar thermal field of 396 Savo15S collectors, as well as all the engineering of the plant and the supervision software.
Savosolar was happy to sign its so far largest delivery contract with Grenaa Varmeværk in 2018. Savosolar’s highly efficient Savo 15 premium collectors are installed right next to an existing solar collector field which had been commissioned in 2014.
In this turn-key project Savosolar acts as the main contractor enlarging the solar fraction of the district heating network. Its operator, Grenaa Varmeværk, is producing about 146,000 MWh of heat per year. By using solar thermal it has managed to keep their customers´ heat price among the lowest in the whole of Denmark.
The new solar field with Savosolar collectors will increase the overall solar yield and ensure lowest energy production costs also in the future.