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Projects: Projects for Investigator
Reference Number InnUK/102830/01
Title A Low Cost Ferrite Based Direct Drive Permanent Magnet Generator for Wind Turbines
Status Completed
Energy Categories Renewable Energy Sources(Wind Energy) 100%;
Research Types Equipment 100%
Science and Technology Fields ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Project Contact
No email address given
Award Type Collaborative R&D
Funding Source Innovate-UK
Start Date 01 September 2017
End Date 31 March 2019
Duration 19 months
Total Grant Value £1,259,058
Industrial Sectors
Region London
Programme Competition Call: 1607_LO_INFRA_R1 - Infrastructure Systems over 12 months or over 100k. Activity Infrastructure Systems - Over 12 months or Over 100k
Investigators Principal Investigator Project Contact , GREENSPUR RENEWABLES LIMITED (62.065%)
  Other Investigator Project Contact , Offshore Renewable Energy Catapult (20.069%)
Project Contact , University of Warwick - WMG (17.866%)
Web Site
Abstract Greenspur Renewables has developed a new, low-cost, ferrite-based direct drive (DD) permanent magnet generator (PMG) aimed at the offshore wind energy market. DD PMGs are becoming increasingly important for large-scale wind turbines as they remove the need for a gearbox and the high maintenance costs associated with using them. Today, however, all existing large-scale DD PMGs use scarce and expensive rare earth magnets that are sourced almost exclusively from China. The Greenspur DD PMG uses ordinary ferrite magnets which, although less powerful, are 1/30th of the cost by mass of rare earth magnets and can deliver substantial cost savings. Following smaller-scale trials, patent filings and positive feedback from industry, this project will enable Greenspur to specify, build and test a 250kW generator in collaborative R&D partnerships with the Offshore Renewable Energy Catapult (OREC) and with Warwick Manufacturing Group (part of Warwick University). The company’s ultimate objective is to licence its technology for the manufacture of multi MW units for use in the rapidly expanding global offshore wind market.
Publications (none)
Final Report (none)
Added to Database 28/03/19