COGENERATION OF HEAT AND POWER IN COMBINATION WITH SUPPLEMENTARY LIGHTING
When using electricity from the grid, the only heat involved on the nursery is that released from the lamps, whereas with combined heat and power production there is also the heat released in the generating process.
In 1987–1988, in an experimental greenhouse, IMAG made trials with the energy aspects of the integration into the energy supply system of private cogeneration of heat and power combined with supplementary lighting. In the experiments the control of burning hours of the lighting system was connected with the heat demand from the tomato culture. Data were collected on light and heat supply, energy consumption and crop performance. The results have been compared with those of growing systems without supplementary lighting.