Surplus heat from industry needn't go to waste

04 March 2019

Excess heat from ROCKWOOL’s factory in Doense, Denmark provides heat to 750 nearby homes via the municipal heating system. With effective policies, municipalities could capture more than 100 times that from industry, writes Danish newspaper Politiken.

RW-Doense Production facility, Factory

In its Sunday edition, Politiken newspaper writes about the huge potential in annual savings (1.6 billion DKK and 300,000 tons of CO2) from capturing surplus heat from Denmark’s industry—but only if the right policies are in place to make it feasible.  

As an example, the story cites ROCKWOOL’s Doense factory near Hobro, Denmark, which currently provides surplus heat for 750 homes via the municipal heating system. 

“After an extension of the factory, it will be able to deliver three times as much. But this presupposes that the tax on surplus heat does not change in the way that the Ministry of Taxation has proposed,” the newspaper writes. 

The current proposal from the Ministry of Taxation would create a payback period of at 8-10 years, which is too long to justify the mulit-million dollar investment needed, Klaus Hovmøller, Production Director for ROCKWOOL Nordics, tells Politiken. 

About the ROCKWOOL Group

At the ROCKWOOL Group, we are committed to enriching the lives of everyone who experiences our product solutions. Our expertise is perfectly suited to tackle many of today’s biggest sustainability and development challenges, from energy consumption and noise pollution to fire resilience, water scarcity and flooding. Our product range reflects the diversity of the world’s needs, while supporting our stakeholders in reducing their own carbon footprint.

Stone wool is a versatile material and forms the basis of all our businesses. With more than 11,600 passionate colleagues in 39 countries, we are the world leader in stone wool solutions, from building insulation to acoustic ceilings, external cladding systems to horticultural solutions, engineered fibres for industrial use to insulation for the process industry and marine & offshore.