UNDER CONSTRUCTION
Bad Rappenau, Germany (largest flat plate collector plant in Germany)
Summa Energy has been selected as general contractor to build a +20 MW solar thermal system on behalf of Bauer Holzenergie GmbH for its district heating network, which supplies households and an industrial process for drying fruits with healthy heating. Only about 1,800 pieces of Savo 16S large scale high performance flat plate collectors are sufficient to getting combined with an 8,000 m³ heat storage tank and
provide carbon free heat for the needs of all connected consumers.
Additionally, a PV system will be built on site to generate the electricity consumed by the solar pumps, thus
unburdening the local power grid.
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.
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.
Løgumkloster Fjernvarme is a district heating company which annually supplies 35,000 MWh of heat to over 1,500 customers. Heat is produced with a hybrid heating system consisting of a 3 MW pellet boiler, a 1.3 MW hybrid heatpump, a 3 MW absorption heat pump and a solar collector field of 15,300 m2. Additionally, the plant has two gas engines which are capable of producing 7.6 MW of heat and 6 MW of electricity and a 10 MW gas boiler which acts as back-up.
In 2015, Savosolar delivered a 9,700 m2 solar thermal field to Løgumkloster. The second order of 5,600 m2 was delivered and commissioned in the beginning of 2016. The complete field consists of 1030 Savo 15 SG collectors and covers about 20% of the annual thermal energy need of the district heating network. The largest part of the heat demand is covered by the pellet boiler, but Løgumkloster Fjernvarme has plans to change this in the future by extending the solar field and building a large seasonal water storage.
