Weather records in Finland – Opportunities for renewables

Kuittila Farm CHP

Finland has seen extremes in weather conditions within the recent weeks, December 2015 has been exceptionally mild whereas the new year starts with cold records in January. Those extreme conditions offer chances for renewable energy, especially energy from forest resources.

December 2015 warm – January 2016 cold.

Finland has seen higher temperatures in December 2015 than ever before, with a new record broken on Sunday 20th of December. The exceptionally mild winter continued in Finland, with temperature records broken twice already in December. On 6 December Åland basked in a relatively balmy 11.1 degrees, but that record was broken on Sunday 20th in Kokemäki, where monitoring stations recorded 11.2 degrees.

That has, however, changed now in January. Cold air from the Arctic is dominating weather conditions in Finland, with the coldest temperatures of the winter so far recorded on Wednesday 6th of January. Finland is enveloped in a Siberian deep freeze this week, severe cold continues to chill Finland, with temperatures below -20 degrees Celsius across the country – and a new winter low recorded in Muonio, Lapland. Up there the mercury dipped to -40.7 degrees at 6am on Thursday, before dropping to -41 at 8am. That is colder than at any time this winter. (Sources: Yle)

Opportunities for renewables.

The cold can cause power cuts affecting especially households dependent on electricity for heating, which is still very common in rural areas. Also milder conditions with an increased number of storms cause problems to the supply of energy to the customers. Storms have caused power cuts as a result of trees falling on power lines.

Renewable energy from forests can offer a solution in those extreme conditions. Fireplaces, stoves and other wood-based heating systems often function as back-up systems and additional heating sources. Wood energy consumption per capita in Europe is highest in Finland and Sweden. In Finland, wood-based energy accounts for approximately 85 % of the total consumption of renewable energy.

The use of chopped firewood, pellets or wood chips is very common in the rural parts of Finland. Larger scale combined-heat-and-power (CHP) plants cover the heating of large cities through district heating systems. They are often based on renewables such as wood chips from nearby forests. More than half of the energy wood purchased in the third quarter of 2015 as raw material for forest chips was pruned stemwood. This was the most valuable type of energy wood; crown mass accounted for one third of energy wood sales. (Sources: Natural Resources Institute Finland)

Forest energy based heating systems are ideal when facing extreme weather conditions in the Northern Periphery and Arctic regions. The Natural Resources Institute Finland (Luke) is working with forest energy within the GREBE project and will deliver solutions to other regions through technology and know-how transfer.

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