Job offersmore »

Tweeting Growers

Top 5 - yesterday

  • No news has been published yesterday.

Top 5 - last week

Top 5 - last month

Exchange ratesmore »

Netherlands: First geothermal energy cucumbers harvested

Since the frost has disappeared from the Netherlands, René Kalter of breeding company Voorhof is back to using geothermal energy. At the neighbouring farm, the Vahl Bros, gas consumption has severely dropped as well since the geothermal installation being turned on. This week, the first geothermal cucumbers of the two farms were auctioned.

"It felt like I had to learn the game all over again," says René Kalter. "First we had a tube of 60 degrees going through the greenhouse. Now we have a second heat system with an average temperature of 45 degrees. With a much lower pipe temperature, but with more capacity, we can reach the same greenhouse temperature.” The second tube also ensures that the water with a lower temperature goes back into the ground.

René Kalter, Kees Vahl, and Radboud Vorage

The well provides geothermal energy to eleven hectares of greenhouses. The test phase began in March 2012, and the well went in full operation six months ago. "There were still a few things we had to adjust," says project director Radboud Vorage. "It concerned a few technical issues. But now the pump runs smoothly and we’re saving quite a bit of natural gas, around 80% I reckon. In the long run, we can probably achieve 70% on a daily basis."

The innovations so far have benefited cultivation. "Things just seem to be a little more efficient. The moisture is better kept within limits," says Kalter. Whether or not the production is actually higher, is not yet clear. But time will tell.

For more information:
Radboud Vorage
Greenhouse Geo Power

Publication date: 2/1/2013



Other news in this sector:

12/2/2016 Impact of Brexit on UK renewable energy policy debated
11/30/2016 Australia: Bio-Energy heating at Family Fresh Farms glasshouse
11/29/2016 CAN (ON): Union Gas cuts ribbon on expansion in greenhouse sector
11/25/2016 £1.7bn boost indicates untapped potential of UK energy efficiency
11/18/2016 CAN (AB): Doef’s Greenhouses makes energy management a team effort
11/9/2016 Westmoreland-TopLine Farms goes sustainable with solar panels
11/4/2016 Drilling to commence for geothermal heating project in the Netherlands
11/2/2016 European Commission approves German support to cogenerated electricity
10/31/2016 CAN (AB): "Carbon Levy will create uneven playing field"
10/17/2016 UK: Renewable energy in a post-subsidy world
10/7/2016 Turkey: Growing tomatoes at -46°C with geothermal heat
10/4/2016 Growing tomatoes and peppers among the solar panels?
10/4/2016 CHP still has a place in UK glasshouse industry
10/3/2016 IEA Bioenergy releases global energy report
9/27/2016 German grower uses biofuel as alternative to natural gas
9/19/2016 Tesla pitches giant batteries to Australian growers
9/19/2016 Increased interest in biomass fuels expected to drive CHP installation market
9/15/2016 US (OH): Health and safety exhibits featured at Farm Science Review
9/14/2016 Israel: Scientists make algae produce five times more hydrogen fuel
9/8/2016 BayWa acquires Australian solar distributor