Geothermal
Geothermal energy is ideally suited to direct heating. Low temperature geothermal systems have been used widely for heating greenhouses, for aquaculture farms and for drying timber and crops.
Methods
Essentially, shallow wells access the warm or hot water, which is then pumped throughout the greenhouse for heating.
Typically there are two methods for dispersing this geothermal heat:
- Running hot pipes at ground level to keep root systems warm
- Ducting air over warm pipes, effectively using large radiators.
More information
