"greenhouse of 1.5 ha... constructed in Holland... does not consume gas or electricity in winter... heated by means of energy accumulated in summer period in watery sand layers on the depth 80-100 meters. Warm water is delivered by means of special pumps for the heating of the greenhouse in cold season. The temperature of the pumped water reaches 50 degrees.
In summer... the greenhouse is cooled by cold water in line with the pull-in principle." URL : http://www.lol.org.ua/eng/showart.php?id=53005 If you know of other examples where the same technology is applied, in Europe or elsewhere, please provide links or references. Thanks in advance, Viateur _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
