The Mayo B initiative involved building a second powerhouse about three kilometres downstream from the existing powerhouse. This has more than doubled the amount of energy that can be generated from the Mayo River (from five megawatts to approximately 15 megawatts). No changes were required at Wareham Lake or to the Wareham dam.
Mayo B started feeding power into our transmission system at the end of 2011.
Funding for the Mayo B project has been made affordable by contributions from both the Federal and Yukon governments, along with a financial investment by the First Nation of Na-cho Nyak Dun.
This project was reviewed by the Yukon Utilities Board (YUB) and by the Yukon Environmental and Socio-Economic Assessment Board (YESAB). Both applications can be found at the bottom of this page.
Note regarding YESAB filing: because of their large file size, the Appendices of our YESAB filing have not been posted on this web site. Should you require the full application, including all Appendices, please contact us and we will provide you with a disc.