12 kW vertical axis wind turbine designed and constructed at Uppsala University.
S. Apelfröjd, S. Eriksson
CC BY 4.0
S. Apelfröjd et. al. "Evaluation of Harmonic Content from a Tap Transformer Based Grid Connection System for Wind Power", Journal of Renewable Energy <a rel="nofollow" class="external text" href="https://doi.org/10.1155/2013/190573">doi:10.1155/2013/190573</a>