ISHS Acta Horticulturae 148: III International Symposium on Energy in Protected Cultivation
AN ECONOMIC ANALYSIS OF ENERGY ALTERNATIVES AFTER ENERGY SAVINGS |
| Author: | A.P. Verhaegh |
| Abstract:
Together with the extension service, practical research and the back-up of good professional journals, the growers have developed a thermal screen with low annual costs and good energy savings of 30%, with losses on yields, quality and earliness the grower can accept. Just as in Dublin (7–12 September 1980) I would ask you to develop this screen further in such a way that solutions are found for those crops where screening is still difficult and thermal screens with high fuel-saving characteristics become feasible. In combination with good house keeping and with the current energy saving investments the grower can attain more than a halving of the energy consumption of 1980, while at the same time the primary objective of cheapness and quick pay-back of the invested capital is met. Energy alternatives like heat-pumps, residual and waste heat come close to the aim of cheapness and quick pay-back if the use of lower-temperature energy is exploited more. Utilizing lower-temperature energy is a research problem not only for the technologist, but also for the cultivation specialist, physicist, physiologist and others. Only in a very close coöperation between these different disciplines it will be possible to solve these problems in the short-term. | |
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