Contact
Professor van der Waalsstraat 1
1821BT Alkmaar
The Netherlands
KvK: 83560548
+31(0)85-7925251
info@ecoways.nl
St. Helena, the Island
Saint Helena is a remote island in the South Atlantic Ocean, about 2000 kilometers west from Africa, between South Africa and America. This island is part of the British Overseas Territory. The island has a population of 4,255 people and measures about 16 by 8 kilometers (10 by 5 miles).
Read more The St. Helena project started in or around 2000 when three Lagerwey 18/80 turbines were installed on the island. In 2009 WES increased the number of turbines to a total of six by adding three WES80 80kW turbines. In 2014 another six turbines doubled the wind capacity on the island of St. Helena to twelve wind turbines. Due to the good wind location the wind turbines will provide about 20%, and in windy months even 30% of the energy on the island. Close
Maximum output
960kW
Monthly production one WES80 turbine
Key success factors
Act local
- Cooperation with local company/community
- Training local engineers
Maintenance
- 1st line: local trained engineers
- 2nd line: WES
Digital monitoring
• Scada
Logistics
- WES turbines can be transported into a container
Operational excellence
- Top project management
- Experienced team engineers
WES hybrid concept St. Helena
The turbines have 2 ways to control the maximum output:
- Primary control, based on grid frequency -> passive pitching
- Secondary control, based on communication -> optical, ethernet, etc
Passive pitching
All the WES turbines have our unique passive pitch system. This is based on a teetering hub principle. This technology has been designed in 1980, developed for more than 35 years and it is the best concept for blade pitch for midsize wind turbines. With the result that the WES wind turbine suffers less wear and enjoys a longer life expectancy in comparison with other turbines.
Why is passive pitching important:
- For maximum rotor speed limitation
- Reduced power production is possible
