Ett självförsörjande utomhusbad

Sammanfattning: The municipal outdoor swimming pools of Bälingebadet, situated in Bälinge north of Uppsala, is today mostly heated by electric heating, and an insufficient solar heating system. Bälingebadet is managed by Sportfastigheter AB, which in turn is owned by Uppsala municipality. Today the facility is plagued by expensive energy costs related to heating of tap-water, pool water and off-season facility heating. Through accumulation of data, simulations and scoping the available market, the paper investigates the needs and alternatives for Bälingebadet. The report provides suggestions in three stages which all correlate to different degrees of lowered energy costs. As a result two solutions are presented. One solution which focuses on the first two stages, combining expanded use of solar heating, the introduction of a heat pump as well as various measures to improve the energy efficiency of the facility. The second solution and third stage expands on the previous stages and introduces photo voltaic-cells that match the new, lowered, electrical power need. Both solutions bring economical and environmental benefits with relatively short payback periods and a reduced electricity consumption of up to 70 %.