profound analysis of SCADA data and monthly production data
wind measurement with a Sodar instrument used for comparison purposes
comparison of all data with a neighbouring wind farm
reduction of the long term mean energy production has a significant contribution to the overall difference between the predicted and the real energy production
calculation of wake losses is realistic
the total energy production of the main comparison wind farm in the original assessment report with wind turbines of the same manufacturer is significantly higher than predicted and as could be expected considering the location of the wind farm, however the procution data could be verified by the feeded energy production
the new wind turbines are a new type of the same manufacturer, however, the predicted power curves differ significantly from those of the comparison turbines
Together with the company AQSystem, aj attended the Solar Show MENA 2020, which took place from 8 to 10 December. aj participated actively with two talks and two panel discussions. Together with a virtual booth, aj was thus able to network in a market where aj has been active in for many years.
In 2019, a wind measurement with a Sodar was completed successfully in the high mountains of Bosnia under winterly conditions. In 2019, a wind measurement with a Sodar was completed successfully in the high mountains of Bosnia under winterly conditions. In 2019, a wind measurement with a Sodar was completed successfully in the high mountains
In September 2019, aj develops a methodology to calibrate the wind flow calculation. This allows for adapting the local wind shear and the horizontal variation of the wind resource simultaneously. Thus, comparison turbines of very different placements and hub heights can be incorporated and uncertainties can be reduced significantly.
aj completes successfully a wind measurement with Sodar to assess the wind shear on a site in Marocco. aj completes successfully a wind measurement with Sodar to assess the wind shear on a site in Marocco.
Oldershausen, 15 May 2018: A new study of aj shows that the wind resource of the years around 1990 cannot be considered as very exceptional any more. Consequently, these years must be included in the long term reference period, if the result should be balanced. Download of the report Wind D NAO-Index E 15.05.2018 aj