The location of the new Royal Theater Playhouse partially over the water will allow a heat pump to be employed that will alternately cool and heat water taken from Copenhagen Harbour. Using this method, the Playhouse will reduce energy consumption for cooling the building by an estimated 75-80 per cent - simply by using seawater and a heat pump. "Reusing and exploiting energy in this way is an interesting concept," comments the Royal Theater's technical director Nikolai Jensen. "Given our proximity to the water, it's an obvious solution. This concept means that, in environmental terms, we are in the forefront. And it will give us substantial savings on operating costs to the benefit of the arts." (photo by Jim Mueller, Vulcan)