New wind turbines are even efficient in low winds – the benefits are fivefold

VTT Research Centre of Technology (VTT) has explored the potential and economic benefits of new wind power technology. The technology would greatly increase the benefits of wind energy and enable the competitive utilisation of wind power in Finland.

VTT Research Centre of Technology (VTT) has explored the potential and economic benefits of new wind power technology. The technology would greatly increase the benefits of wind energy and enable the competitive utilisation of wind power in Finland.

Heavy investments are being made in wind power, which highlights the importance of this new and competitive technology. Wind power accounts for around 4% of global electricity consumption, and for over 10% in Europe.
VTT has investigated Finlands wind power potential and compared various generations of the related technology. Ground-based wind turbines are often built in open locations, where there is sufficient wind. The problem is that low winds do not generate adequate power. However, new technology now enables higher towers and larger rotors, i.e. longer blades, than the previous wind turbine generation. The VTT research has revealed that new-generation wind turbines are also reasonably efficient in low winds. This will allow turbines to be located more freely in the future, for example in forested areas.
The new technology will enable an increase in competitive wind power. Although the investment costs of the new power plants are higher than before, there is a fivefold beneficial increase in the potential offered, compared to the older technology. Based on the same cost assumptions, the new technology could cover the whole of Finlands electricity consumption (86 TWh), whereas the old technologys potential was limited to around 16 TWh. In addition, land use restrictions have no major impact on the evaluation of the new technologys potential, since it would enable economically viable production in more locations than before.
‘Sufficient wind power is available in Finland. Technology and land use restrictions affect the available wind power potential, i.e. annual energy production. The key issue is to decide on the extent to which this potential is realised. In practice, wind power is intended to cover part of electricity consumption. Large-scale use of wind power will require new kinds of solutions throughout the electric power system, says Research Scientist Erkka Rinne of VTT.
Wind power is a form of renewable energy and Finlands expertise in Arctic wind power gives it a particular competitive edge in this regard. VTT is developing state-of-the-art technology which takes account of environmental impacts and benefits from e.g. the tools and fine adjustments enabled by the virtual modelling of wind turbines.
VTTs study forms part of the EL-TRAN Research Project (2015-2021) funded by the Strategic Research Council. The Strategic Research Council operates at the Academy of Finland.

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