References

Wind Atlas for Norway
Customer: Norwegian Water Resources and Energy Directorate

With the aid of the mesoscale meteorological model (WRF), we have created
the first comprehensive wind atlas for Norway. The wind atlas has a horizontal resolution of 1km x 1km. The results from the wind atlas have also been compared to 22 measurement masts, and the comparisons showed that 20 of those masts had errors within +/- 10 %. In addition to the wind atlas we have created maps of production variables (capacity factor, full load hours), icing and terrain complexity.

SSVAB (Vindkraft Norr)
Customer: SCA Vind AB
Location: Area between Östersund and Sundsvall, Sweden
Size: About 1.000MW

Mapping of wind conditions for a 1000 MW wind project in central Sweden.
Kjeller Vindteknikk has been responsible for an extensive measurement campaign.
We have installed wind measurement devices on 18 masts for these projects.
Kjeller Vindteknikk has also been responsible for the analysis of the data and calculations of energy yield estimates.

Due Dilligence of energy yield
Customer: Jämtkraft
Location: Various locations in Sweden
Kjeller Vindteknikk has carried out bankable energy yield estimates for a number of wind farms in Sweden. This includes analysis of data from measurement masts, SODARs, model simulations, uncertainty analysis and icing analysis.

Calculation of production losses due to icing
Customer: O2 Vind
Location: Various existing wind farms in Sweden
With the help of the mesoscale meteorological model WRF, we carry out on-going calculations of production losses due to icing for a number of wind farms in Sweden. The calculations are updated on a monthly basis. Today, Kjeller Vindteknikk delivers icing-forecasts and inproduction forecasts the losses due to icing.

Fängsjön-Storsjöhöjden
Customer:FORSCA (Fred Olsen and SCA)
Location: Västernorrlands län, Sweden

To map the wind conditions in the area, Kjeller Vindteknikk has installed four met masts of 120 m height. One of the met masts is instrumented with ice-free ultrasonic sensors at several heights which gives a valuable data cover, even during the winter months. The ice-free sensors are supplied with power from one of our strong power supply units. Kjeller Vindteknikk also performs analysis of the measurement data, there among a running long term correction of the data.

Wind measuments at 140 m height
Customer: Högland Skog & Kraft AB
Location: Hocksjön, Sweden

Kjeller Vindteknikk has installed two 140 m high met masts at Hocksjön. The met masts are state-of-the-art, both regarding the configuration and the choice of sensors. By using Kjeller Vindteknikk’s power supply units, heated sensors can be used to achieve high availability of data even during the winter periods. During the measurement campaign, continuous work is carried out including data control, running long term correction of the data and preliminary reports. This contributes to the high quality of the measurements and is the basis for further calculations of the energy yield for the planned wind farm.

Wind measurements for RES
Customer: RES (Nordisk Vindkraft)
Loation: South of Norway

Kjeller Vindteknikk has installed and instrumented three 80 m high met masts in the South of Norway. Two of the met masts are located in remote areas without road access. This has put high demands on the safety and planning of the installations.

Wind measurement and analysis for JP Vind
Customer: JP Vind
Location: Borgvattnet and Skyttmon, Jämtland, Sweden

Kjeller Vindteknikk is mapping the wind conditions in the project areas Borgvattnet and Skyttmon, with two 100 m high met masts. Both met masts are equipped with heated sensors to achieve valuable ice-free measurements during the winter periods. The measurement data is then analyzed and the expected energy yield from the wind farms is calculated.

SoDAR measurements
Customer: Stena Renewable AB
Location: Various locations in Sweden

Kjeller Vindteknikk is responsible for collecting data from and maintaining more than 10 SODAR devices at various locations in Sweden.

Norsewind
Customer: EU Commission

An EU-financed research and development project with the goal of creating a wind atlas for the Baltic Sea, North Sea and Celtic Sea. There is also a strong element of development of new methods in the project. A large pool of different sources of information about wind conditions is drawn from; satellite data, LIDAR, measurement masts and meteorological model data must all be combined to form a final wind atlas. Kjeller Vindteknikk has the responsibility of preparing the final wind atlas.

See https://www.norsewind.eu/public/index.html

Ongoing forecasts of day-ahead production
Customer: Statkraft
Location: All of Norway

Kjeller Vindteknikk delivers, in cooperation with met.no, day-ahead production forecasts for all of Statkraft’s wind farms in Norway: Smøla, Hitra and Kjøllefjord.

LiDAR measurements
Customer: Statoil
Location: Utsira

Kjeller Vindteknikk has the responsibility of collecting data from and maintaining the LIDAR devices at Utsira. The LIDAR is placed on the westernmost coast of the island and the position was chosen to be as representative as possible of the offshore wind conditions in the area. We also do various analyses of the measurement data to best characterize the offshore wind. In the first year after installation the LIDAR had a technical availability of over 95%

HYWIND
Customer: Statoil
Location: Off Karmøy, Rogaland, Norway

Kjeller Vindteknikk calculated load extremes for this turbine which is placed offshore from Haugesund, on the west coast of Norway. In addition Kjeller Vindteknikk delivers, in cooperation with met.no, daily forecasts for wind speed, production and wave heights.

Kjøllefjord
Customer: Statkraft
Location: Kjøllefjord, Lebesby kommune, Finnmark, Norway

Kjeller Vindteknikk has carried out wind measurements, analysis, layout design and calculations of production estimates. The latter has been done for different phases of the project, with the latest performed when the turbines had been in operation for a period. We have also analyzed icing and uncertainty.

Sheringham Shoal Offshore wind farm
Customer: Statoil
Location: Norfolk, England

Kjeller Vindteknikk has carried out meteorological modeling and provided time series for production of this wind farm, which is under construction. Analyses of energy production have also been carried out.

Racco Wind farm arctic wind measurements
Customer: Varanger Kraft
Location: Berlevåg, Berlevåg kommune, Finnmark, Norway

Kjeller Vindteknikk has carried out and been responsible for wind measurements at Racco. Racco is located 12 km from any road and is prone to extreme weather and periods with icing. The measurement station has heated sensors and its own power supply. A layout and production estimates have been provided for different construction scenarios.

Fakken Wind farm
Customer: Troms Kraft
Location: Fakken, Vannøya, Karlsøy Kommune, Troms, Norway

Kjeller Vindteknikk was involved as technical consultant throughout the process of purchasing turbines for Fakken wind farm near Tromsø, a project of approximately 60 MW. The role was to be the customer’s expert on wind conditions. Fakken is a wind farm in complex, mountainous terrain. The lifespan and warranties for the park were important themes in this work. Kjeller Vindteknikk has also carried out wind measurements and calculation of production estimates for Fakken.

Guleslettene Wind farm
Customer: Zephyr
Location: Guleslettene, Bremanger Kommune, Sogn og Fjordane, Norway

Guleslettene wind farm is placed at a high elevation with exposure in the direction of the sea, immediately north of Florø, Norway. Zephyr and Elkem Fornybar Energi have plans to build a wind farm of up to 180 MW on the site. Kjeller Vindteknikk has been responsible for a demanding wind measurement campaign, consisting of three measurement masts. One of them has been equipped with heated sensors and an external power supply.

Kvitvola Wind farm
Customer: Austri Vind
Location: Engerdal kommun, Norway

Austri Vind is planning a wind farm on the mountain Kvitvol, an area 1000 m above sea level. The site is characterized by rough climatic conditions. Kjeller Vindteknikk has been chosen to carry out wind mapping of the area. As a first step in this process, one met mast has been installed, equipped with instruments of high quality. The mast is also equipped with one heated sensor supplied with power from a specially designed power supply, with diesel generator, solar panels and a large battery storage of 800 Ah.

Engvikfjellet Wind farm
Customer: Ramboll
Location: Engvikfjellet, Snillfjord Kommune, Sør-Trøndelag, Norway

Kjeller Vindteknikk has carried out shadow flicker calculations, as well as wind measurements and analysis of collected data.

Yttre Vikna Wind farm
Customer: Sarepta Energi
Location: Vikna kommun, Norway

To be able to follow up the energy production, a met mast has been erected during the first step of the construction of the wind farm. Kjeller Vindteknikk has made the planning, installation and operation of a 70 m high self-supported met mast. The instrumentation is made according to IEC standards. The mast and instruments were put together on ground and then mounted with help of a crane. The measurement equipment has been connected to the Enercon SCADA system so that all wind data is collected and saved separately together with the production data.

Måkaknuden
Customer: Lyse Produksjon
Location: Bjerkreim kommun, Norway

Kjeller Vindteknikk has planned, installed and put a 80 m high met mast into operation in the planned wind farm. We are also responsible to follow up the measurements from the met mast. The mast is erected 3 km from nearest road. The foundation and supporting wires are adapted to the remote access in a cost-effective way. The installation was made by helicopter.

LIDAR measurements
Customer: Austri Vind
Location: Trysil kommun, Norway

Kjeller Vindteknikk has been selected to carry out wind mapping of the area where a wind farm of 110 MW is planned. To map the wind conditions a 100 m high met mast has been installed, equipped with high quality sensors. Occurrence of icing during the winters is frequent and the mast is equipped with ice-free sensors supplied with power from our efficient power supply units. As a complement to a regular met mast, we also carry out wind measurements with a WindCube-Lidar from Leosphere. The operation and maintenance of the Lidar is carried out by out certified Lidar operators.

Wind and production estimates in the Balkans
Customer: Terra Romania
Location: Romania

Microscale analysis based on mesoscale model data for wind farms from 300-500 MW. Layout and production estimates, advice on choice of turbines and design of wind measurement campaigns. Micrositing of turbines and measurement masts.

Wind and production analyses in South Africa
Customer: Afri-Coast Engineers
Location: South Africa

Kjeller Vindteknikk has carried out several analyses of wind, wind power production and turbulence for wind farm areas near Port Elizabeth in South Africa. Quality control of wind measurements and advising on the design of measurement campaigns.