JVA Cazis horticulture and sale, Canton Graubünden (CH)
Horticulture of the open judicial institution with production building, sales building and greenhouses. The energy is supplied via biomass and biogas local heating grid in the Realta area. Production and sale building in Minergie standard. Heated greenhouses according to EN7 with an average U value <2.4W / m2K by using an energy screen under the double membrane tunnel roof.