- Production Manager
- Assistant Professor - Controlled Environments Entomologist
- Technical Development Specialist | Horticulture | France
- Director of Business Development | Middle East | Agtech
- Farm/Production Manager; Berlin (m/w/d)
- Trader Asian Market
- Avocado Growing Manager - Kenya
- Operations Accountant
- Sales Manager for Nordic countries (H/F)
- Senior Breeder
Top 5 -yesterday
Top 5 -last week
Top 5 -last month
- Zambia: "We produce 5,000 units of lettuce per week, per tunnel, year-round"
- UK growers stop planting and put nurseries on sale amidst energy crisis and labor shortage
- Family business: growing tomatoes in greenhouses for over 60 years with an eye on innovations
- Passive solar greenhouses: How Ladakh farmers are harvesting crops in winter
- "High-tech farmer AppHarvest is running out of money"
geothermal heat pumping:
Australia's veg growers dig deep to improve greenhouse energy efficiency
“The technology involved in geothermal heat pumping is very exciting and could revolutionise the way the industry cultivates vegetables, in a manner which is both effective and environmentally friendly,” said AUSVEG spokesperson, Michael Bodnarcuk.
AUSVEG is Australia’s leading horticultural body representing 9,000 vegetable and potato growers.
GHP technology works by drawing heat from the ground with a long loop of water-filled pipes, which are buried a few meters deep in the soil. As water flows through the underground pipes, it is warmed by heat retained in the Earth from solar energy. The pipes then run through the greenhouse, regulating the temperature inside.
“This allows greenhouses to stay at a constant temperature without the need to continually run conventional, and wasteful, heating systems,” said Mr Bodnarcuk.
“In Europe and the USA, heat pumping has been used for decades as a conventional heating method. The system essentially acts as a reverse refrigerator, with the main exception being that it harnesses only natural and clean energy from heat stored in the ground,” said Mr Bodnarcuk.
One main benefit of GHP can be seen in the carbon efficiency of the technology. Initial results from the project have found that, as well as providing clean energy, GHP also maintains excellent vegetable growth performance figures.
The project, led by Jeremy Badgery-Parker, was funded by HAL using the National Vegetable Levy, voluntary contributions from industry and matched funds from the Australian Government.
“Through the use of geothermal heat pumping, greenhouses have been successful in maintaining steady temperatures of 18 degrees, an ideal temperature for stimulating vegetable growth. As well as maintaining this temperature, for every kilowatt of electricity input into GHP, 4 kilowatts of heat energy are supplied back to the greenhouse, which is a very efficient rate of return,” said Mr Bodnarcuk.
Greenhouses have traditionally operated using gas-heated systems, however, the concerns associated with carbon emissions have increased the cost of energy, encouraging growers to examine alternative heating systems for their greenhouses.
“As the price of conventional fuels is continually rising, it is especially important that the vegetable industry considers alternate energy sources,” said Mr Bodnarcuk.
This communication has been funded by HAL using the National Vegetable Levy with matched funds from the Australian Government.
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2022-11-25 Sustainable energy use in horticulture - heating with biomass
- 2022-11-25 "If we continue like this, everyone will get their turn eventually"
- 2022-11-23 NL: Crisis update: Normal temperatures, abnormal gas prices
- 2022-11-21 "Most growers confuse energy saving with transparency"
- 2022-11-17 Full control of the amount of light in the greenhouse
- 2022-11-14 VB signs contract for installation geothermal heat project Maasdijk
- 2022-11-11 35% savings on electricity costs through LED grow light system
- 2022-11-08 Threat to greenhouse crops due to EU energy crisis
- 2022-11-08 Sealed greenhouses: worth the investment?
- 2022-11-07 Crisis update: TTF short-term gas price remains higher than seems logical
- 2022-11-04 UK: Energy bill relief scheme guidance for CHP
- 2022-11-04 NL: High gas price or additional The Hague policy? Which reduces greenhouse horticulture emissions the most?
- 2022-11-04 How to choose an energy-efficient HVAC system
- 2022-11-03 US (MA): Adams' Full Well Farm celebrates 'climate battery' greenhouse
- 2022-10-31 High energy prices are another test for the resilience of EU food producers
- 2022-10-24 "Need for deployment of batteries at large solar generators increasingly urgent"
- 2022-10-19 “In some situations, using artificial lights can be just too expensive”
- 2022-10-18 NL: How vertical farming compares to more established farming systems?
- 2022-10-18 "Closed water systems that reuse drain water help overcome sodium obstacles"
- 2022-10-13 Save time and energy with water-based pipepaint