Construction of the roads leading up to the site is set to begin in the first half of 2019. The foundations for the wind turbines will then be built and the wind turbines raised.
The wind turbines will be built once the roads and foundations are completed, and this is scheduled to be in 2020/2021.
The aim is to have completed the wind farm within the framework of the Swedish-Norwegian Electricity Certificate System, meaning before the end of 2021.
PPA stands for Power Purchase Agreement and is a long-term electricity trading contract between a power producer and customer who purchases energy at an agreed price during the period.
The construction of the wind turbines will primarily take place up in the mountains and the project team is working to minimize the impact on local activities. If you live in the local area you will notice an increase in traffic and in civil engineering works during certain periods, as work will be carried out to reinforce roads and large components for the wind turbines will be transported up to the wind power area. On these occasions, local residents will be informed, including information published here on oyfjelletvind.no.
Several surveys were conducted in conjunction with the concession application and approval to ensure that the wind farm will not have a substantial impact on flora and fauna in the local area.
The wind farm will be joined to the electricity grid using new electric cables being built to the Marka transformer substation. The local metal manufacturer Alcoa will purchase the annual electricity production from the wind farm (approx. 1.3-1.4 TWh) for a period of 15 years. Because power generation and consumption are so close to each other in the electric grid, no new transformer capacity is needed, which is good news, for both environmental and economic reasons.
Temarapport om iskast from NVE describes the risks regarding ice throw and actions to take in order to minimize and inform about the risk (full report can be found here https://www.nve.no/Media/6951/iskast.pdf).
Below are some extracts from the report.
- Ice throw is mainly a health and safety challenge for service personnel. The ones who are working within the wind farm often stay near the turbine towers where the risk is the highest. Outdoor enthusiasts and others who do not work at the wind farm usually maintain such a large distance to the wind turbines that the risk is minimal. However, it is important to provide good information to ensure that the risk does not get high.
- NVE recommends a minimum distance linked to the sum of the turbine tower height and rotor diameter. This sum can be approximately 200 meters for a typical wind turbine in a Norwegian wind farm.
The distance of 200 meter is not a ban to enter the area, but a zone where there is a risk. For Øyfjellet wind farm, this zone has been rated to ca 280 meter depending on potential tower height and rotor diameter. In addition to Eolus’ wish to prevent ice throw due to safety reasons for employees and the general public, it is also important for developers to reduce ice formation due to the imbalance it creates on the blades causing production losses. To minimize icing in the best possible way is therefore also an economic issue for the developer. There are currently systems for deicing and anti-icing which can reduce ice formation through, for example, warming the turbine blades during operation and removing ice when the turbine is stopped through heating systems in the blade. Such systems can reduce the extent of icing, but will not exclude the possibility of ice throw completely.
Noise is one of the many aspects considered when planning and establishing a wind farm. The sound from wind turbines is influenced by several factors, such as distance to the wind turbine, terrain and wind conditions.
According to the latest analysis of Øyfjellet wind farm, which was completed in the autumn of 2018, it is shown that all buildings outside the concession area will be within national requirements with good margin. For more information regarding noise from wind turbines, see Miljødirektoratets M128/2014, Veileder til retningslinje for behandling av støy i arealplanlegging, kapitel 7.8 och 9.8 (http://www.miljodirektoratet.no/no/Publikasjoner/2014/Februar-2014/Veileder-til-retningslinje-for-behandling-av-stoy-i-arealplanlegging-T-14422012/).
The access road from the start, north of Grøvsetra, up to the area within the concession area where the first wind turbine is planned will be approximately 13 km. It will start about 400 meter north of Grøvsætra and will have a road width of 5 meter. Along the road there will be a cable ditch for two 132kV cables (approx. 3 meters), meaning a total terrain engagement of 9-11 meters (road+roadsides+cable ditch+ditchline etc.). Outtake of stones for road construction will take place at three quarries along/in the road line of the access road. These quarries will coincide with areas where there regardlessly is need for a larger interference in order to build the road. Of the three quarries in the road line, the quarry in the area south of Middagseidklumpen will have the largest terrain engagement. A final design of the quarry will not be possible until the road through the area is detailed. In addition to the quarry in the road line of the access road, it will also be relevant to take out material through an expansion of the existing quarry along Tveråvegen, approx. 300 meters after Steindalsmoen bridge over Tveråga.
We are currently working with the MTA plan and have engaged a landscape architect to prepare a «design handbook» which describes how the terrain interferences following the constructions should be formed in order to get the best possible adaption to the landscape.
The wind farm is going to produce appr. 1 400 GWh. The amount represents:
- 13% of yearly energy use for all consumption groups in Nordland
- 57% of yearly energy use for households and agriculture in Nordland
- 43% of yearly energy use for all consumption groups in Vefsn
- 1048% of yearly energy use for households and agriculture in Vefsn
- 162% of yearly energy use for households and agriculture in Helgeland (19 municipalities)