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Germany: RWE's Horti-Therm Plus cooling water heats greenhouses

The Hortithermtechnology developed by German energy supplier RWE has been delivering waste heat to greenhouses andasparagus fields for more than 30 years. Currently Birgit and Michael Bong are testingits successor, Horti-Therm Plus, in their greenhouse in Niederau├čem, incollaboration with RWE engineers and project partners.

Furtherdevelopment of the technique was necessary because modern power plants use up theirown waste heat to increase power. The new system therefore needs a flowtemperature of 20 to 30 degrees Celsius in order to be sufficient. "Thepoint is that the energy content of lignite is used as effectively aspossible," says Lars Kulik, head of planning at RWE Power. He expects thepilot project to generate ample knowledge about the intelligent use of coolingwater.

Whether thenew technique works is still undetermined, due to the current outdoor temperatureof over 30 degrees Celsius.

 

Rundschau-online.de.

 

 
 

 

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