Pauline Leonard, GREBE Project Coordinator, had a very successful and enjoyable trip to Denmark with GREBEs Associate Partner, the Irish Bioenergy Association. Representatives participated from a broad range of sectors including Irish biomass boiler manufacturers, Coillte, private forestry and farming interests, pellet producers, representatives from Údarás na Gaeltachta, and other government agencies focusing on building sustainable rural energy projects.
Brewery Vestfyen was our first site visit, here they have shifted from oil to local biomass sourced from residual wood in the Danish forestry and sawmill sector. 2 boilers running on 700,000 litres of heating oil each year have been replaced with a 40 bar 4MW boiler from Focus BioEnergy running on P45 wood chips since January 2015 with a yearly consumption of 10,000 m3. The brewery has a yearly production of cans and bottles containing beer and soft drinks exceeding 120 million units. Biomass is tipped into two 100 m3 containers and transferred to the boiler by auger. Biomass is sold to the customer by the gigajoule of energy delivered and payback is less than 2 years as a result of a government incentive to encourage the switch to renewables.
In the afternoon we visited the town of Stoholm which has a district heating system common to many small towns (780 houses) we met a company which designs, sells and installs bio-fuel boilers. This particular plant was a 1MW pellet boiler and provided the heating and water for all the houses in the town during the summer months, in the winter months a larger capacity gas boiler kicks in to meet the peak load demand. On Friday we travelled to Sonder Omme District heating plant which provides heating for housing and industry (pop. 1700). It is a fully automated system using woodchip, Anders Hjørnholm from Danstoker brought us around the plant the boilers here was manufactured by his company, he said it was a typical build in Denmark.
We visited a second 5.5MW district heating plant in Grindsted where we were accompanied by Peter Larsen from Justsen who specialise in biomass boiler system installations. Finally last stop was Danstoker fabrication workshop, a large aircraft hangar full of boilers at different stages of construction, ranging from sub 1MW up to 20 MW.
It was a very informative trip and good contacts were made. It was impressive how Denmark take renewable heat seriously and provides targeted incentives to underpin investor confidence in the sector. It is a model we would like to see here in Ireland. There are so many energy intensive businesses in the Irish food, pharmaceutical and manufacturing sectors who have a global ambition to become carbon neutral through reducing emissions and using resources more efficiently. It is widely recognised that our State and the emerging private forestry biomass resource can play a key role in delivering on this ambitions.