16 August 2005
Deep Stream Power for 3,100 Homes
TrustPower's new Deep Stream enhancement of its Waipori power scheme will be providing power for 3,100 homes by Winter
The project was granted a Resource Consent last month. It involves channelling existing water flows from Deep Stream to
Lake Mahinerangi through a canal and a small head pond. Lake Mahinerangi already feeds TrustPower multi-station Waipori
hydro scheme. Placed within the canal system will be two 2.5 MW generator units made surplus by upgrades to TrustPower's
Coleridge power station
The scheme, which will cost approximately $15 million to construct, will generate enough power to supply 3,100 average
homes. It will also provide an emergency water supply for Dunedin City in the event of a prolonged draught.
TrustPower Chief Executive Keith Tempest says the Deep Stream enhancement is just one of a number of proposed projects
where TrustPower is aiming to enhance existing generation schemes to provide additional power with little or no local
environmental impact, and a positive national and global environmental impact.
"This project is exciting, because it provides a 10% increase in the power currently available from our existing Waipori
scheme. On the basis that it displaces the need for alternative generation involving the burning of fossil fuels, and
therefore helps New Zealand meet its obligations under the Kyoto agreement, the project has also been granted Carbon
Credits. Without these Carbon Credits this project would simply not have been financially viable."
Mr Tempest says construction work will begin before the end of the 2005 calendar year, with the objective of having the
scheme fully commissioned before Winter 2007.