Main Civil Works for 1000MW Sta. Rita Combined Cycle Power Station

Project Description

First Balfour was responsible for the construction of the main power plant and miscellaneous buildings, site development works, and sea water inlet/outlet structures.

The project included 13.6 kilometers of access roads and 50 concrete foundation structures for 50 units of 3 MW wind turbine generators.

Approximately 630 cubic meters of concrete was used for the construction of foundations for each wind turbine tower. Each wind turbine rests on a tubular steel tower that has a 75 meter hub height and a 90 meter rotor diameter which offers a swept area of 6,326 square meters. First Balfour also installed 120 kilometers of electrical cabling and a Yaw Back-up Generation System that comprised 3 units of 1.5 MW of back-up power. The back-up generation system is to ensure that in the event of a power failure, the yaw mechanism will be used to turn the wind turbine rotor against the wind.

Situated in more than 600 hectares of challenging mountainous terrain covering Barangays Saoit, Poblacion and Nagsurot in Burgos, Ilocos Norte, the wind farm now generates about 370 gigawatt-hours of energy and avoids an estimated 200,000 tons of carbon emissions annually.

The whole project was commissioned on time in November 2014 and won the feed-in tariff (FIT) race ahead of the nearest rival by nine days. Aside from receiving citations from the City and Provincial Environment and Natural Resources Offices for its reinstatement efforts, the project was also awarded by the Project Finance International (PFI) with a global award named Asia-Pacific Renewables Deal of the Year (2014).