Community Research and Development Information Service - CORDIS


Publishable final report on project JOE3-CT98-7015.

The main objective of the research was to construct and test an LEC greenhouse, in regard to energy consumption, greenhouse climate and plant growth. The common denominator for the project is energy saving in greenhouse based on substitution of glass with screen materials and adaptation of a growing system based on concept that makes it possible to convert the greenhouse to almost open land. The LEC greenhouse is designed for production of plants with low temperature requirement and high tolerance to variation in air temperature. The LEC greenhouse is heated with hot water from a heat storage connected to a solar collector to diminish the use of non-renewable energy.

The quality of the plants produced in the LEC greenhouse is high and the plants were produced with an energy consumption of approximately 20% compared to the amount of energy used in a glass greenhouse. The energy consumption per hour was on average 4 MJ and the average per day was 21 MJ, but with very large variation in energy consumption over the experimental period.od.

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