Ambuklao

Ambuklao

SN Aboitiz Power took over Ambuklao in July 2008. The plant had not been operational since 1999 due to damages suffered from a major earthquake in 1990. The company has rehabilitated Ambuklao and is now fully-operational.


The plant 

Ambuklao was commissioned by the National Power Corporation in 1956 and is one of the oldest hydropower plants in the Philippines. It has a capacity of 75 MW. The usable storage of the Ambuklao reservoir is 50 MCM, (about 45 operating days at 5 peak hours).

Operation

After going through a  3-year rehabilitation period, Ambuklao is now fully operational and has a new installed capacity of 105 MW.

Development

A new intake has been built and all major power components, such as turbines and generators, have been replaced. The rehabilitation was completed in the 3rd quarter of 2011. The fully rehabilitated plant has 3 turbines of 35 MW each with a combined average annual production of about 332 GWh.

Sustainable development

The rehabilitation of both Ambuklao and Binga, their dam/spillway and other facilities already resulted in a significant number of employment opportunities to local inhabitants. Water quality will be improved by environmental programs to reduce contamination from waste water and solid waste disposal.

SN Aboitiz Power has established a Corporate Social Responsibility fund to enable strategic development projects in all Binga’s host communities. The Fund focuses on supporting self-sustainable and long term projects within Environmental Management, Eco-tourism, Healthcare, Education and Social Infrastructure. Watershed management programs are currently being implemented to help protect the forests and other areas within the impact area of the plant.

The Ambuklao rehabilitation project has been approved and registered to generate carbon credits under the UN`s Clean Development Mechanism (CDM). Through generation of renewable energy, Ambuklao will replace some of the Philippines`s thermal power production and the UN confirms the project will reduce global CO2 emissions by an estimated 160 000 tonnes annually. The CDM approval and registration was a decisive factor for the realisation of the project. 
 

Ambuklao facts

Location:  Benguet Province, Luzon, 180 km north of Manila

Installed capacity:  75 MW, 105 MW after rehabilitation

Type:  Rock-fill dam with vertical clay core

Average annual expected output:  332 GWh after rehabilitation (2011 to 2027)

Dam height:  129 m (dam crest length is 452 m)

Gross head:  Rated head is 155 m

Design flow:  26 m3/s per unit

Equipment:  Three Alstom units of 25 MW each

Commercial operation:  1956

Capital cost:  325 MUSD (for Ambuklao and Binga plants)

Power Purchase:  100 % of electricity generated is sold at Wholesale Electricity Spot Market

SN Power ownership:  50 %

Other equity owners:  Aboitiz Equity Ventures 50 %

Partner:  Aboitiz Equity Ventures

Financing:  Consortium of international and local financial institutions; IFC, BIB and local banks

CDM registration:  Registered in June 2011 with 180 000 tonnes of annual carbon emission reduction for Ambuklao and Binga combined