The heat entrepreneurs have been actively involved in the latest developments of the solar power in North Karelia, Finland. Several investments will take place this autumn to provide renewable electricity for district heating plants.
Finnish heat entrepreneurship is mostly based on biomass. The number of heating plants has increased steadily between the early establishments in 1990’s, to 330 plants in 2006 and 618 in 2015. About 25 % of the plants were connected to the district heating network, and the median size of the heating plants is 500 kW. The heat enterprises are mostly private companies (43%), cooperatives (12.7%) and other types of firms, mostly single entrepreneurs (44.5%).
The heat entrepreneurs have become increasingly interested in solar power integrated to the heating plans. The plans have stable electricity consumption profiles, i.e. less hourly variations compared to many other end-users. The systems require very limited service and maintenance work, and profitability is better than in solar thermal. The economic analyses indicate that the new investments in DH plans located in North Karelia will have approximately 11-15 years paybacks and 5-9 internal interest rates.
The Power from the Sun project, run by Kim Blomqvist from GREBE project partner Karelia UAS, has supported the establishment of the systems in four energy enterprises in Eno, Tuupovaara, Kiihtelysvaara, Kontiolahti and Biowin Karelia Ltd. The investments have received 25% energy support from the Finnish Funding Agency for Innovation. Seven solar power plans have total capacity of 70 kW, varying between 5 to 21 kW, and estimated annual production is 52 000 kWh. The systems will be provided by a local company Mirotex Ltd. and installed in September.
Poveria Biomassasta Project (Power from the Biomasses), collaborating with the NPA Project GREBE, is establishing a network of renewable energy demonstration sites in North Karelia, Finland.
Several of the sites, such as Eno Energy Cooperative or small-scale combined heat and power of Kuittila Power Ltd., are already famous examples of sustainable energy at the local level. Together with updates of current sites, there are number of new examples for demonstrating new technologies and business models. Poveria Biomassasta will gather the energy sites as a demonstration network and provide access to them through the GREBE Renewable Energy Business Portal.http://www.renewablebusiness.eu/
The energy enterprises in North Karelia have joint development on the integration of solar energy solutions into district heating plants – and a new project, Poveria auringosta (Power from the Sun), has been launched for the purpose. The project will support attending enterprises in energy system planning and carrying out the investments and follow-up. In addition, there has been new interest in energy storage opportunities in the region, and several investments for energy storage are prepared. The practices in wood energy, technology manufacturing, and hybrid systems will also be demonstrated through the network.
The renewable energy demonstration network in North Karelia will be launched at the end of 2017. Karelia UAS will provide further information of the demonstration network and available case examples through the GREBE and Poveria Biomassasta projects.
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.