Ambuklao and Binga Hydro Power Project
and Dams, Philippines
Client : SN Aboitiz Power - Benguet.
Discipline : Hydropower
Due diligence and post purchase rehabilitation
involving reviews, studies and design related to the
projects. Ambuklao comprises a 129 m high central
core rock fill dam with 8 x 12.5 m x 12.5 m radial
gated ogee spillway, steep chute and flip bucket
outlet discharging 11,000 cumecs at PMF, 75 MW
underground power station, 327 million m3 storage.
Binga is immediately downstream of Ambuklao
and comprises a 107 m high zoned earth-rock fill
embankment with inclined core, radial gated ogee
spillway with steep chute and flip bucket, 100 MW
power station, 48 million m3 storage.
Dam safety audit of the 114 m high main zoned
earth rock fill embankment with inclined core,
35 m high north dam and 30 m and 20 m high
dykes with gated ogee crested weir spillway
(7-16.5 m x 20 m radial gates), chute and flip
bucket, 360 MW surface power station,
1,090 million m3 storage.
Dam safety audit of the 132 m high main zoned
earth fill embankment with inclined core and 102 m
high secondary embankment with radial gated ogee
crested spillway (3 - 8 m x 10 m gates), chute and
flip bucket, 100 MW surface power station, 3,000
million m3 storage.
Included were the Masiway Re-regulation Dam
(25 m high zoned earth fill with central core, 12 MW
surface power station and gated spillway (3 radials
11 m x 8.8 m), Canili zoned earth fill division dam
(72 m high); and Diayo zoned earthfill diversion
dam (64 m high)
Prefeasibility and feasibility studies and geotechnical investigations for the 35 MW hydroelectric scheme adjacent to the Kaituna River near Rotorua. The project includes the construction of a river intake, diversion of up to 25 cumecs of flow through a cascade of two power stations and 2 km of HDPE lined canal and 4 km of tunnel to outlet back into the river.
A run-of-river hydro power project consisting of two
independent hydro schemes, one upstream 16.5 MW
and the second downstream and 26 MW, totalling
42.5 MW.
Develop a comprehensive power reform program,
including enhanced governance, more efficient
management structures and a regulatory framework
allowing private sector participation and sector
efficiency enhancement
Develop a programme to reform the EPC’s internal
business and management procedures
Prepare an investment road map to diversify the
country’s energy resources, meet future load growth
and reduce the burden of diesel imports.
A run-of-river hydro power project initially with
three schemes, 20 MW, 7.5 MW and 6.5 MW and
subsequently changed to two. The original schemes
included division weirs, diversion tunnel conveyance
(low pressure) pipelines, desanders, pondages,
penstocks, surface powerhouses and tailrace channels
and switch yards, substation and transmission lines.
Access roading is also included in the project.
Two studies were undertaken. Firstly the Vaitai Hydro
Power Project, a 2 MW run-of-river scheme with net
generation head of 130 m and design discharge of
2 cumecs. The main components are intake weir, single
2.1 km long by 2.1 m diameter penstock, powerhouse
with twin 1 MW Pelton turbines and switchyard and
4 km x 22 kv transmission line.
The second part covered a hydro power options
Aniwhenua, New Zealand
Hydro-electric Power Project
Client : Bay of Plenty Electric Power Board
Discipline : Hydropower
Civil engineering evidence and investigations,
detailed design, construction supervision and
commissioning and ongoing surveillance for the
25 MW hydroelectric scheme adjacent to the
Rangitaiki river in the Bay of Plenty. The project
includes a river intake barrage, diversion of
flow through 2 km of concrete lined canal and
headpond then via pipelines to a 25 MW power
station to outlet back into the river.
Civil engineering evidence and investigations and
consents support for the 40 MW hydroelectric
scheme adjacent to the Arnold river near
Greymouth. The project includes the construction
of a diversion of up to 80 cumecs of flow through
a 40 MW power station and 12 km of earth lined
canal to outlet back into the river.
Client : Electricity Corporation of New Zealand Ltd
Discipline : Hydropower
Prefeasibility and feasibility studies and
geotechnical investigations for a two station
cascade hydroelectric scheme on the Hawea
river in Otago. The project includes the
construction of a river intake and powerstation
and hence diversion of flow to a power station on
the Clutha river via earth lined canal to outlet
back into the river.
Prefeasibility and feasibility studies and geotechnical investigations and detailed design
and documentation for the 8 MW hydroelectric
scheme in the Solomon Islands. The project
includes the construction of an innovative river
intake with sediment basin, diversion flow through
a low pressure tunnel to a penstock and to power
station and outlet back into the river.
Prefeasibility and feasibility studies and
geotechnical investigations, detailed design
and construction supervision for the 7.5 MW
hydroelectric scheme on the Opuha river in South
Canterbury. The project includes the construction
of a 50 m high dam, spillway, intake, and 15
cumecs of flow through a 7.5 MW power station
and a downstream reregulating weir.
Prefeasibility and feasibility studies and
geotechnical investigations for the 540 MW,
NZ$1.2 billion hydroelectric scheme adjacent to
the Waitaki river in northern Otago. The project
includes the construction of an innovative river
intake, diversion of up to 340 cumecs of flow
through a cascade of six 90 MW power stations
and 60 km of earth lined canal to outlet back into
the river.
Prefeasibility and feasibility studies and
geotechnical investigations for the 90 year old,
4 MW hydroelectric scheme adjacent to the Wairua
river in Northland. The project includes the
upgrade of the existing scheme and construction
of a new unit and associated canal, penstock and
station works.
