Gasma nurseries uses biomass heating for its greenhouses
| Region(s) | FRANCE |
|---|---|
| In domains | Agriculture, Energy Conservation |
| Participants | Gasma |
Greenhouses consume an enormous amount of energy, which is very costly for the operator and a major impact for the environment.
Objectives :
- Reducing the costs of the energy used
- Reducing the environmental impacts
Gasma nurseries has 4000m² of greenhouses which provide a habitat for tropical plants requiring an ambient temperature of 20°C.
In 2000, the company had to face the increase of gas prices and started looking for a less expensive alternative for the heating of its greenhouses.
In 2004, it chose wood burning biomass furnaces, installed for an investment of 230,000 Euros, 35% subsidized by the Ademe and the region. A connection maintained with the old gas boiler allows for backup power if necessary.
The wood consumption is around 90m³ per week during the 4 coldest months, then of 50m³ per week during the shoulder season.
The wood used is drawn from various waste products including those that result from pruning of the company's own trees. A crusher transforms these wastes into wooden chips.
The site has a storage silo of 90m² as well a storage shed of 200m³ allowing 2 to 3 weeks of autonomy, with a backhoe loader to feed the silo. The construction of the shed was chosen to avoid a silo with too much capacity.
• 700kw power, 100% of the heating needs covered by the wood burning furnace during the first year
• Reduction of overall costs
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