Deep lake water cooling

Deep lake water cooling is based on a very simple physical property of water: water is heaviest at a temperature of 4°C, and is lighter at temperatures above and below this. As a result, any deep body of water will have a permanent layer of cold (4°C) water at a depth of 83 meter, called the "hypolimnion", and this layer is renewed every spring and fall as the surface is warmed and cooled with the season: when the surface hits this critical 4°C temperature, it sinks, and adds to the existing cold layer. This layer can provide a permanent renewable source of totally natural cooling. The deep lake water cooling project has it all: it makes business sense, it is environmentally responsible, and it will be reliable. Customer contracts are being negotiated right now and several new landmark buildings are expected to join Enwave\´s expanding cooling network over the next few months.