The renewable energy to produce electricity on the islands of Iniö, Finland

The islands of Iniö seek to increase the use of renewable energy for society´s needs. There are wind and ground energy used on the islands, in order to provide electricity for lighting and heating.

Iniös residents and visitors annually dispose of 49.8 m3 of heating oil, 1,350 m3 of firewood, 273,000 kWh of electricity, 47,000 liters of fuel oil, 219 400 liters of diesel, 127 800 liters of gasoline. This energy is mainly used for heating, road traffic, and maritime traffic.

Houses are heated with geothermal heat, wood boiler and a combination of direct/air heat pump/wood burning stove on the Iniö. The municipal building is heated with oil, the townhouse is heated with direct electricity. The school, the all-activity house, and the elderly house are heated with earth heat. Total local energy production on the islands of Iniö is 2,533 MWh/year.

On the Keistiö island, which is part of the Iniö islands, the village association has a wind turbine that produces electricity for its road lighting. The turbine was completed during the first half of 2014 and for seven months has produced 3,500 kWh. It was used for outdoor lighting with LED lamps and for primary heat in the old schoolhouse.

Traffic's share of energy consumption and carbon dioxide emissions is still high on Iniö. Most of the traffic emissions come from ferry traffic (almost 50 percent), but boats and passenger traffic have significant proportions. The total emissions of maritime traffic are 53.9 tons of CO2. Car emissions are largely due to the lively through traffic along the Archipelago Ring Road, in total 794 tons of CO2. The third-largest source of emissions is heating of buildings (15 percent of total emissions) including electricity consumption. The total emissions in CO2 equivalents are 1,191 tons on Iniö.

Keywords: wind turbine, wind energy, renewable energy, earth heat, Keistiö, Iniö, Finland