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Creating a wind-farm in a unique natural environment
The Sjisjka wind farm, one of Sweden's largest land-based wind farms made up of 30 turbines, is located in the sub-mountainous region of Sjisjka in the Municipality of Gallivare. The region has strong wind conditions and was designated as an area of national interest for wind power by the Swedish Energy Agency.
The wind farm is owned in a partnership between Skanska, O2 and Jamtkraft, and is expected to generate 200 GWh of electricity a year, enough to power about 43,000 households. Measured from the ground level to the top of the rotor's highest point, each turbine is 130 meters high. The rotor blades are 50 meters long.
Two 130 kV power lines are connected to Sjisjka. A transformer station has been built next to the railway.
This has been a pilot project in many ways, including logistics. The wind farm is being constructed in an area without roads, which creates practical and technical challenges. For example, 95 percent of transport has been by railway, with materials, machinery, dump trucks and cars all being brought to Sjisjka by train. A road to the site to transport turbines was not built until July 2012.
The staff, who have been staying in Gallivare, commuted to work by railway on a specially chartered train. During the construction phase, the project employed between 80 and 100 people. During the facility's operational period, the farm will be manned round-the-clock all year long.
The region in which Sjisjka is located is included in the EU's nature protection network - Natura 2000 - which imposed the need for particular consideration of the valuable environment. Restrictions that protect the project include a ban on using natural materials from the surrounding mountains for roads and foundations.
The aim has been to build Sjisjka in harmony with nature and for the project to serve as a role model for how to create renewable energy cost effectively and profitably, with minimal environmental impact on a delicate mountainous environment.
Time and the environment were conserved through the use of prefabricated foundations, which were transported to the project site by train. A limited amount of fresh concrete was mixed on site using a mobile cement facility.
Fredrik BjorckebaumProject DirectorSkanska Infrastructure Development+46 10 448 11 06
E-mail Fredrik Bjorckebaum »
Service: Construction, Operations & Maintenance
Market segment: Power
For Skanska’s part, this project fits well with our goal of being a leader in green construction and of contributing towards a more sustainable society. The project is also completely in line with the government’s ambition of adding more renewable electricity to the electrical system.
The wind farm is situated in the Kaitum primeval mountain forest, which is a preserve for nature experiences, recreation and scientific research in untouched nature. In addition, it is situated within a Natura 2000 area. This means there are numerous restrictions and obligations during the project period. Upon construction completion everything must be restored – the roads removed and when the wind farm is retired, the bases covered over.
In order to protect this sensitive environment, we are operating throughout the project using long-term sustainable solutions. We have developed a sustainability plan to ensure that those of us responsible make sure that the laws and restrictions applicable to Sjisjka wind farm are followed.
Natura 2000 was created with support from the EU’s habitat and bird directives. Regulations in the directive are subsequently implemented through the member nations’ national legislation. In Swedish legislation, these regulations can be found in the Environmental Code and in the Ordinance regarding protected areas in accordance with the Environmental Code (1998:1252).
Sustainability and safety
The project was completed in accordance with a sustainability plan meant to generate the least possible environmental impact and long-term sustainable solutions, green building, a lifecycle approach and a high level of safety.
Safety is and always has been a high priority. Sjisjka Vind and the contractors Jemtska and Vestas have been focused on achieving the goal of a zero-accident workplace.
The Sami grazing community of Girjas herds reindeer on and around the border between the municipalities of Gallivare and Kiruna. As early as 1999, O2 contacted the Sami to discuss the possibility of establishing a wind farm that was compatible with their lifestyle in the area. With time, the partnership has evolved and the Sami have helped with activities such as clearing work, earth works and wind measurements. During the course of the project, there have been constructive discussions between the various stakeholders and the project has adapted to minimize its impact on the environment and the reindeer herds.
Rural wind-power development compensation
Annual rural wind-power development compensation of about SEK 300,000 will be paid during the lifetime of the facility to promote development in the municipality, part of which will be earmarked for the nearby villages of Killinge, Kaitum and Neitisuanto.