Dave Pearson, former Director of Innovation of Glasgow-based Star Refrigeration – the UK’s largest industrial refrigeration contractor who now leads the specialist subsidiary Star Renewable Energy – will tell the remarkable story of the Drammen heat-pump renewable energy scheme before an international energy conference today (22 April). In 2009, Glasgow based Star Renewable Energy was the first company in the world to offer a city-sized heat pump at 90C using a natural working fluid, ammonia. Heat pumps cool one fluid and transfer this heat to another fluid but at higher temperature using only a fraction of the primary energy. In the case of Drammen, in Norway, the Glasgow team harvest heat from the fjord and cool it by 4 degrees. In doing so they deliver enough heat for 6,000 houses to a district heating network. Norway town generates 85% of its heat for 1/7th cost of gas – without emissions – thanks to Glasgow’s Star Renewable Energy.