Cubic Modulsystemer

Large-scale solar heating plant

Our CUBIC partner DME A/S supplied switchboards for the control of a large-scale solar heating plant in Gråsten, Denmark, as part of an ambitious plan set out by Gråsten Fjernvarme (District Heating Gråsten).

The first phase included the construction of a major solar heating plant with seasonal storage, as well as around 19.000 m2 solar thermal collectors, a technical centre and accumulation tank. At the time of construction, the plant was the largest plant of its kind in the world. The plant consists of 1.519 ARCON HT collectors with the yield that corresponds to the average consumption of 485 households.

The plant in Gråsten is acts as a satellite plant on the outskirts of the town. A small heating centre with a wood pellet boiler and an absorption heat pump that is fed with 150 degree warm water from the wood pellet boiler. This increases the temperature of the return water, so the forward flow has a temperature of 70-75 degrees. At the same time, it delivers 10-25 degree cold water to the collectors making them more efficient through considerably more hours of operation.

Technical Facts

Large-scale solar heating plant​

Our CUBIC partner DME A/S supplied switchboards for the control of a large-scale solar heating plant in Gråsten, Denmark, as part of an ambitious plan set out by Gråsten Fjernvarme (District Heating Gråsten).

The first phase included the construction of a major solar heating plant with seasonal storage, as well as around 19.000 m2 solar thermal collectors, a technical centre and accumulation tank. At the time of construction, the plant was the largest plant of its kind in the world. The plant consists of 1.519 ARCON HT collectors with the yield that corresponds to the average consumption of 485 households.

The plant in Gråsten is acts as a satellite plant on the outskirts of the town. A small heating centre with a wood pellet boiler and an absorption heat pump that is fed with 150 degree warm water from the wood pellet boiler. This increases the temperature of the return water, so the forward flow has a temperature of 70-75 degrees. At the same time, it delivers 10-25 degree cold water to the collectors making them more efficient through considerably more hours of operation.

Technical Facts