a commercial scale wind turbine pilot demonstration …
TRANSCRIPT
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
CONTENTS
1 INTRODUCTION 1
2 BASIC INFORMATION 2
2.1 PROJECT TITLE 2 2.2 NAME OF PROJECT PROPONENT 2 2.3 NAME AND TELEPHONE NUMBER OF CONTACT PERSON 2 2.4 DESIGNATED PROJECT TO BE COVERED BY THE PROJECT PROFILE 2 2.5 PURPOSE AND NATURE OF THE PROJECT 2 2.6 PROJECT DESCRIPTION 2 2.7 PLANNING AND IMPLEMENTATION PROGRAMME 8
3 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT 9
4 POSSIBLE IMPACT ON THE ENVIRONMENT 10
4.1 CONSTRUCTION PHASE 10 4.2 OPERATIONAL PHASE 12
5 DESCRIPTION OF MITIGATION MEASURES 14
5.1 CONSTRUCTION PHASE 14 5.2 OPERATIONAL PHASE 15
6 USE OF PREVIOUSLY APPROVED EIA REPORTS 16
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
1
1 INTRODUCTION
Castle Peak Power Company Limited (CAPCO), a joint venture between CLP
Power Hong Kong Limited (CLP) and ExxonMobil Energy Limited (EMEL),
recognises the Government of the Hong Kong Special Administrative Region
(HKSARG)’s efforts in exploring alternative power sources, including
renewable energy, and in promoting public awareness of these alternative
power sources. To this end, CAPCO has launched a commercial scale wind
turbine pilot demonstration (the Project) to investigate the economic,
environmental and technical feasibility and practicality of wind energy
application in Hong Kong, in support of HKSARG’s renewable energy
initiative. The Project will take a grid-connected commercial scale wind
turbine through the full site selection and regulatory process so that the
community can gain more knowledge and experience about wind energy
application in Hong Kong.
This Project Profile presents an outline of the Project and key information on
the environmental aspects of the Project for the application of an
Environmental Impact Assessment (EIA) Study Brief under Section 5.1(a) of
the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO).
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
2
2 BASIC INFORMATION
2.1 PROJECT TITLE
A Commercial Scale Wind Turbine Pilot Demonstration at Hei Ling Chau
2.2 NAME OF PROJECT PROPONENT
Castle Peak Power Company Limited (CAPCO)
2.3 NAME AND TELEPHONE NUMBER OF CONTACT PERSON
Name, Position and Title Telephone Number
Mr Richard Morse
Head of Environmental Strategy and Development, CLP
Power Hong Kong Limited
2678 8380
2.4 DESIGNATED PROJECT TO BE COVERED BY THE PROJECT PROFILE
The grid-connected commercial scale wind turbine power generation system
qualifies as a Designated Project under Category D (Energy Supply), Item D.1
(Public Utility Electricity Power Plant) of Schedule 2, Part I under the EIAO.
2.5 PURPOSE AND NATURE OF THE PROJECT
The Project is a pilot study and its main purposes are as follows:
• to evaluate the applicability of a grid-connected wind power generation
system in Hong Kong;
• to collect engineering and environmental information (including the
necessary statutory permitting requirements) required for the development
of wind power generation in Hong Kong;
• to educate and raise the community’s awareness of the issues, costs,
constraints, benefits, etc of wind energy generation in Hong Kong.
2.6 PROJECT DESCRIPTION
This section presents the key information relating to the selection of the
Project Site, the wind turbine proposed to be installed, and the activities
associated with the construction and operation of the Project. It should be
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
3
noted that the Project is under design and that the details are subject to
change.
2.6.1 Site Selection Process
A rigorous site selection process has been conducted to identify suitable areas
for the development of the Project. A potential area must have the following
essential characteristics to be considered in the selection process:
• the area must be on land;
• the area must have close access to CLP Power’s transmission network.
Considerations given in the selection process can be broadly divided into
three main categories, namely grid interface; environmental, physical and
social constraints; and wind resource.
The main consideration in terms of grid interface in the selection process is the
ability to connect the potential area with CLP Power’s existing supply grid
through a land cable. The environmental, physical and social constraints to
the development of the Project include:
• Country Parks and any gazetted extensions;
• Special Areas;
• Ramsar Sites;
• firing ranges;
• Wild Animal Protection Areas;
• Sites of Special Scientific Interest (SSSI);
• sea turtle nesting grounds;
• gazetted bathing beaches;
• seawater intake points;
• areas with residential and commercial premises;
• development height restrictions in the vicinity of the Hong Kong
Disneyland Resort;
• building height restrictions associated with the safe operation of the Hong
Kong Airport;
• areas with population density greater than 30,000 per km2;
• constructability.
In parallel with the site screening exercise, preliminary wind resource
modelling was conducted to identify areas with a reasonable wind resource
for the development of the Project.
A composite constraints map that shows areas with all the abovementioned
constraints (Figure 2.6a) was overlaid with a relative wind resource map of
Hong Kong (Figure 2.6b) to establish a long-list of potential areas. Areas with
reasonable wind resource potential and unconstrained by the abovementioned
factors were listed for further consideration.
#
# ###### #
##
#
##
#
###
###
####
#
#
#
##
##
#
#
#
######
#
#
Hong Kong SAR Boundary
New Territories
Hong Kong IslandLantau Island
Kowloon
EnvironmentalResourcesManagement
Constraints to the Siting of a Commercial Scale Wind Turbine within CLP Supply Area
Figure 2.6a
File: 0019313/all_absolutes_v3..mxdDate: 23/02/2006
Legend
Hong Kong SAR Boundary
Constraints
0 5 10 152.5Kilometers
.
Hong Kong SAR Boundary
Hong KongIsland
Kowloon
Lantau Island
New Territories
EnvironmentalResourcesManagement
Relative Wind Resources within CLP Supply Area
Figure 2.6b
File: 0019313\Isovents_v3.mxdDate: 23/02/2006
0 5 102.5Kilometers
Legend
Low
Relative Wind Resources
High ²
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
4
A set of criteria covering planning, environmental and engineering
considerations was applied to assess the potential areas. Site visits were
conducted and observations from the visits and their implications on the
development of the Project were noted. Based on the ranking results and
consideration of the site observations, a short-list of potential areas was
prepared.
The potential areas were finally subject to a preliminary review to evaluate the
feasibility and acceptability of the potential areas for the development of the
Project in terms of engineering feasibility and wind energy potential. With
the initial confirmation on the engineering feasibility and wind energy
potential, an area on the island of Hei Ling Chau was selected as one of the
two potential Project Sites. A separate Project Profile is expected to be
submitted for the alternative site.
2.6.2 The Project Site
Hei Ling Chau is an outlying island to the east of Lantau Island with an
approximate total area of 1.9km2 (190 ha). The entire island is currently
under the management of the Correctional Services Department (CSD). The
facilities on the island include the Hei Ling Chau Correctional Institution, Hei
Ling Chau Addiction Treatment Centre, Hei Ling Chau Addiction Treatment
Centre (Annex) and Lai Sun Correctional Institution (Figure 2.6c). There are
also other supporting facilities including administration buildings, staff
quarters, two helipads and a guard dog kennel. The island is only accessed
by marine transport and access is restricted. Visitors normally land at the
passenger ferry jetty in the north-western tip of the island. There is also a
berthing facility associated with the refuse transfer facility within the north-
western corner. A number of breakwaters have been constructed to the
southwest of the island to form a typhoon shelter. The island is served by a
single-lane paved vehicular road connecting the various CSD facilities.
The proposed Project Site is located on relatively level ground at an
approximate elevation of +70mPD in the southern part of Hei Ling Chau.
Considering the potential size of the wind turbine (Table 2.1), the total
elevation of the wind turbine could potentially be up to about +160mPD.
The building height limit associated with the safe operation of the Hong Kong
Airport at the Project Site is approximately +162 to 173 mPD. The
dimensions of the Project Site, including the construction lay down areas for
the various components of the wind turbine system, are approximately 50m x
85m (Figure 2.6d). According to information provided by CSD and site
observations, the Project Site is currently used for the temporary storage of
materials and equipment for construction activities on the island.
The two helipads on the island are regularly used by the Government Flying
Service (GFS) to support the operation of the penal facilities. The nearest
helipad is located over 150m from the planned location for the wind turbine.
EnvironmentalResourcesManagement
Figure 2.6c
FILE: 0019313aa5DATE: 10/03/2006
CLP/CAPCO Commerical Scale Wind Turbine Pilot DemonstrationHei Ling Chau Project Site and its Surrounding Environment
Refuse Transfer Station and ExistingJetty / Loading Facility
Hei Ling Chau Addiction Treatment Centre
Lai Sun Correctional Institution
Hei Ling Chau Correctional Institution
Hei Ling Chau Addiction TreatmentCentre (Annex)
Existing Access Road
Project Site
Existing Jetty Access for Passenger Ferry
CSD Accommodation, Staff Facilities andVisitor Areas
Reservoir
Typhoon Shelter
Helipad
Helipad
Jetty
Guard Dog Kennel
TS
TS
60
80
HL
þÿ�ÿ�ý�Pipelines
Pip
elin
e
Road
Road
91.0
87.7
94.9
70.0
66.9
71.770.6
67.9
L
L
L
E
L
L
L
E
72
HEI LING CHAU
76.1
70.9
73.3
70.1
78.981.3
68.0
71.3
G
HEI LING CHAU
TS
TSþÿ�ÿ�ý�ß�
HEI LING CHAU
G
þÿ�ÿ�ý�
Road
78.981.3
68.0
69.8
70.2
60
G
FP
0+
350
0+
400
0+445
Legend:
E
B
B
A
G
C
D
F
Turbine Lay Down Area B 4mx20m
Set Up Transformer 2.4mx2.6m
Jib Assembly Area 4mx40m
70mPD (Approx.)
Access
Track
Materials Lay Down Area
H
Works area
Tower Foundation
Concrete Hardstand Area
Land boundary /
extent of platform to
be used as fill site for
excavated material
Compacted Fill / Lay Down Area
Bla
de
R=
30m
Note : Blade radius 30m approx..
Land boundary to reflect sail
envelope of blades.
þÿ�1�0�0�
Flight Line C HelipadL
L
Long r
oute
access
Short routeaccess
Access gate
N
þÿ�1�
A
B
C
D
E
F
G
H
USTN FILE: 0019313_12_HLC.dgnDATE: 03/03/2006
Note
All dimensions indicated are preliminary
and are subject to detailed design
Substation 5mx6m
Temporary Cabins 5mx10m
Turbine Lay Down Area A 10mx35m
Turbine Foundations 9mx9m
CLP/CAPCO Commercial Scale Wind Turbine Pilot Demonstration
Preliminary Site Arrangement for Hei Ling Chau Project Site
FIGURE 2.6d
Location of
Grave Site
50m (approx.)85m
(approx.)G
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
5
2.6.3 The Wind Turbine
Wind turbine technology is evolving rapidly and it is not possible at this stage
to be specific as to the exact type of wind turbine that will be installed. It is
currently envisaged that a wind turbine with a rated capacity of roughly
800 kW to 1.3 MW will be installed. The proposed wind turbine will be a
three-bladed horizontal axis machine. In a typical wind turbine, the main
electrical and mechanical parts, including the gearbox, the generator and the
yaw mechanism, are housed in the nacelle, which sits on top of a tower. The
tower will be a tubular structure and commonly constructed of steel, but can
also be of other materials such as concrete. The tower will stand upon a
concrete base with approximate dimensions of 9 m x 9 m.
The rotor blades capture the wind and transfer its power to the rotor hub,
which is connected to the electrical generator via the gearbox. The electrical
power generated is transmitted via a step-up transformer to a substation, from
where the power is fed into the nearest existing 11 kV power grid through
overhead or underground transmission cables. A summary of the general
wind turbine specification is presented in Table 2.1.
Table 2.1 A Summary of the General Wind Turbine Specification
Parameter General Specification
Type 3-bladed horizontal axis machine
Rated Capacity 800kW – 1.3 MW, 50 Hz, 690 V
Grid Connection 11 kV
Power Regulation Stall or pitch control
Design Lifetime 20 years
Size of Rotor Blade Up to 30 m length, 5 t weight (assembled 3-
bladed rotor weighs up to 21.5 t)
Size of Nacelle Up to 10 m (l) x 3.75 m (h) x 3.0 m (w), 58.5 t
weight
Size of Tower Up to 60 m height
Overall Size of Wind Turbine Up to 90 m tip height
2.6.4 Construction of the Project
The major construction activities for the Project will include upgrading of
existing roads and/or creation of temporary access for the delivery of
construction materials and equipment, formation of the platform for the
erection of the tower, construction of the tower foundation, erection of the
tower, installation of the nacelle and rotor and installation of the control and
transmission systems.
Two access routes have been identified for the delivery of construction
materials and equipment to the Project Site (Figure 2.6e). The first route, the
Long Route, makes use of the existing heavy load berthing facilities and road
system. The route will take the northern part of the existing loop route and
follow the existing alignment to the Project Site. Enabling works including
utility diversions, removal of structures blocking the transport route, signs
Visit Room
P
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Visit Room
Block M
Block N
þÿ�ÿ�ý� Pier
LT
HW
M
CW
FP
14.9
L
EE
L
L
L
L
L
L
L
L
P
þÿ�ÿ
þÿ�ÿ
þÿ�ÿþÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Hei Ling Chau
Officers Mess
Block T
20
20
40
60
Basketball
Court
PlaygroundBarbecue Area
Playground
WT
HWM
Flat Rock
HWM
HWMFlat Rock
Flat Rock
Flat Rock
Flat Rock
PO
HWM
HEI LING CHAU ROAD
þÿ�ÿ�ý�
þÿ�ÿ�ý�
FP
CW
CW
FP
CW
FP
Road
FP
Road
17.3
3.6
25.643.3
21.9
45.6
46.8
39.5
10.8
49.1
6.4
L
LL
L
L
L
L
LL
L
LL
L
L
L
L
LL
HL
L L
LL
L
L
L
20
40
40
20
HEI LING CHAU
G
HWM
Flat Rock
HWM
HWM
Flat Rock
Flat Rock
FP
FP
FP
FP
FP
43.5
40.6
P
PH
PH
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Mess
Blo
ck Q
Blo
ck P
Blo
ck H
Holiday Bungalow A&B
Blo
ck I
Blo
ck G
Bungalow A
Block F
Bungalow
E
Bu
ng
alow
D
6
20
40
40
20
Pie
r
Refuse Transfer Station
HEI LING CHAU
Playground
ES
S
Septi
c Tank
Pipeline
WT
CUL
INC
WIP May 2005
SHR
LT
SHRSHR
SHR
Seaw
all
HW
M
Rocky
Area
Rubble
Rubble
Flat Rock
HW
M
Flat Rock
H W M
PO
HW
M
HWM
HW
M
Seaw
all
þÿ�ÿ�ý�
Road
Road
FP
Road
Road
FP
Road
Ram
p
4.9
3.9
22.323.3
53.0
38.7
43.7
42.643.6
44.0
3.7
4.1
3.9
4.6
LL
L
L
L
L
L
L
L
L LL
L
L
L LL
L
L
L
L
L
L
L
L
LL
H
L
L
L
L
LH
L
L
L
H
L
L
L
L
H
L
L
L
L
L
L
L
þÿ�ÿ�ý�
P
TS
TS
TS
TS
TS
TS
P
Podium
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ�ý
�œ�⁄�
ì�
þÿ�ÿ�ý�ß
�‡�F�˘�
þÿ�ÿ�ý�y�À�s�
þÿ�ÿ�ý
�ı�
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ�ý�°�¢�„� þÿ�ÿ�ý�›
þÿ�ÿ�ý�›
þÿ�ÿ�ý�–�¢�„�
Block S
Blo
ck R
Den
tal
Cli
nic
Hei
Lin
g Chau
Addic
tion T
reat
men
t C
entr
e
Lai Sun Correctional Institution
Geo
rge
Hal
l
Block A
Block E
Blo
ck D
Blo
ck B
Block C
Tower 1 Bungalow C
Bungalow B
Tower 2
4-10
11
-1
2
15-21
22
23
24-27
2815
31-34
29
30
60
80
60 80
20
100
100
40
60
80
10
0
80
60
806
0
60
40
40
28
4020
20
20
20
40
þÿ�ÿ�ý�q�„�
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�
þÿ�ÿ�ý�‹�þÿ�ÿ�ý�
þÿ�ÿ�ý�x�
þÿ�ÿ�ý�
þÿ�ÿ�ý�ß�‡�F�˘�
Telephone
Exchange
ES
S
HEI LING CHAU
HL
Church
ESS
ET
Football Field
Stand
Basketball C
ourt
Workshop
HEI LING CHAU TYPHOON SHELTER
ESS
ESS
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�˘�
þÿ�ÿ�ý
�˘�
CUL
AR
CH
PipelineWT
Pipel
ine
Pipeline
CULCUL
CUL
Septic
Tank
Septic T
ank
WT
WT
WT
WT
W
M
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
Flat Rock
HW
M
Flat RockFlat
Rock
Flat Rock
HWM
Flat Rock FlatRock
Flat Rock
Flat Rock
Flat Rock
Flat Rock
Dolphin HW
M
PO
PO
PO
PO
HE
I LIN
G C
HA
U R
OA
D
þÿ�ÿ�ý�ß�‡�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Tra
ckF
P
FP
Ro a
d
FP
Road
Road
FP
Road
Road
FP
Track
Ro
ad
Road
Road
Road
FP
11.2
8.8
44.4
40.2
115.5
40.9
81.8
104.2
82.7
62.4
79.1
44.2
27.5
51.1
26.8
51.6
47.4
26.8
45.5
55.6
48.3
38.0
41.1
37.8
23.8
3.2
7.9
3.221.3
18.0
14.0
4.3
13.912.5
3.6
9.4
8.8
7.5
16.8
43.0
13.6
17.4
17.2
L
L
L
L
E
L
L
L
H
L
ELL
LLL
L L
L
LL L
L
LL
L
LL
L
LL
L L
L
H
L
L L
L L
L
LL L
L L
E
L
L
L
L
L
L
L
L
L
L
L
L
H
PH
TS
TS
TS
TS TS
TS
TS
PH
M
A
L
B
K
C
J
D
I
E
H
F
G
N
O
In
terv
iew
Blo
ck
Adm
inin
istr
atio
nB
lock
Staff Rest B
lock
Dining Hall A
Dining Hall B
þÿ�ÿ�ý�|�•
�
þÿ�ÿ�ý�æ�ƒ�
þÿ�ÿ�ý�¾�´�
ß�›�
þÿ�ÿ�ý�„
þÿ�ÿ�ý�„
20
40
40
60
80
100
60
80
100
120
140
100
120
160
14
0
180
160
140 80
60
120
100
100
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�—�ƒ�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�x�þÿ�ÿ�ý�‹�
þÿ�ÿ�ý�j�⁄�h�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�ˆ�ƒ�ô�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�ß�‡�F�˘�
þÿ�ÿ�ý�~�
þÿ�ÿ�ý�E�
þÿ�ÿ�ý�E�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
HEI LING CHAU
Badminton Court
Workshop
Basketball CourtFootball Field
ES
S
Main Gate
Lodge &Visit Room
Kitchen
Store
Show
er
Sewage TreatmentPlant
Show
er
HEI LING CHAU
CORRECTIONAL INSTITUTION
Washing Area
Clinic
Clinic
School
School
ESS
Nursery
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Pip
eline
Pipelin
e
WT
CUL
CUL
CUL
WT
WT
þÿ�ÿ�ý�Reservoir
PO
HEI LING CHAU ROAD
HE
I L
IN
G C
HA
U R
OA
D
þÿ�ÿ�ý�ß�‡�
þÿ�ÿ�ý
�ß�‡�
FP
FP
FP
FP
CWC
W
FP
FP
FP
FP
FP
32.7
75.6
54.8
81.9
60.5
58.1
73.0
68.8
112.7
106.1
112.8
141.5
131.2
91.0
131.5
181.1
84.5
183.3
110.8 100.4
109.3
E
E
E
E
E
E
L
E
H
L
L
L
E
H
L
E
L
E
L
E
L
L
L
H
H
H
H
L
þÿ�ÿ�ý�†�¢�„�
Tower 3
80
60
40
20
þÿ�ÿ�ý�ß�‡�F�˘�
HEI LING CHAU TYPHOON SHELTER
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�·�
HW
M
HWM
Flat Rock
Flat Rock
Dolphin
Dolphin
þÿ�ÿ�ý�
FP
Road
58.1
58.3
12.2
4.8
2.9
5.53.9
2.8
L
L
L
LL
EE
E
L
L
L
L
L
L
L
L
L
L
Sto
re
Launary R
oom
Office
TS
Din
nin
g
Room
Hospital
Workshop
Workshop
P
PH
TS
TS
Hei Ling Chau Dog Kennel
Telephone
Exchange
Isolated Cell
�Guard House
Adm
inis
trat
ion
Blo
ck
Tower 4
120
120
10
0
100
80
80
60
40
20
60
80
40
60
80
20
4
HEI LING CHAU
HEI LING CHAUADDICTION TREATMENT CENTRE
(ANNEX)
Jetty
HL
HEI LING CHAU TYPHOON SHELTER
þÿ�ÿ�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Graves
Pip
elin
es
Pip
elin
e
Pip
elin
e
Pip
elin
e
WT
Pip
elin
es
Pipelines
Pip
elin
e
G
G
W
W
HWM
HW
M
Rocky
Area
HWM
HW
M
HEI LIN
G C
HA
U R
OA
D
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Road
Road
Road
FP
FB
FP
Road
FP
Road
TrackRoad
Ramp
CW
Road
Road
Road
FP
Road
136.2
75.4
77.067.8
74.1
123.5
124.1
138.6
102.4
109.3
128.471.9
84.0
92.1
93.9
7.6
5.3
88.2
89.6
94.1
2.7
4.288.0
6.0
5.9
54.0
84.7
3.77.6
83.8
93.2
70.4
3.0
79.2
2.9
91.0
17.5
87.7
31.1
38.0
94.9
47.6
53.6
50.7
59.7
70.0
68.4
66.9
71.770.667.9
L
E L
L L
L
L L
LE
L
L
LL
E
L
EL
L
L
L
L
LE
L
L
E
LL
L
L
L
E
L
L
L
E
L
L
L
L
E
L
L
L
L
L
LL
L
L
LL
E
L
L
L
L
L
L
L
L
E
L
L E
L
E
L
L
L
LL
L
E
HL
L
L L
LLL
L
L
L
L
L
L L
L
LL
L
L L
L
E
L
LL
E
L
L
L L
L
EL
E
L
PH
60
40
20
þÿ�ÿ�ý�P�
SUNSHINE ISLAND
(CHAU KUNG TO)
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
Rocky
Area
HW
M
RockyAreaRocky
Area
Flat Rock
62.960.4
56.1
57.8
53.1
51.0
69.5
5.9
6.1
PH
20
40
60
80
þÿ�ÿ�ý�ß�HEI LING CHAU
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
HW
M
Rocky Area
HW
M
Rocky Area
Flat Rock
HW
M
Flat Rock
HW
M
FP
5.3
4.7
5.3
5.3
15.7
4.8
2.3
34.2
47.3
72.6
72.6
12.9
3.9
3.6
75.8
96.3
70.5 2.5
86.1
31.2
3.0
23.6
2.4
11.1
8.8
6.0
4.1
5.3 3.4
E
20
40
72
60
40
20
HEI LING CHAU
þÿ�ÿ�ý�
HW
M
HW
M
Flat Rock
þÿ�ÿ�ý
�T
rack
3.0
45.4
7.32.4
6.1
7.6
3.9
63.7
64.5
76.1
70.9
73.3
63.1
70.1
116
100
80
60
40
20
4
78.981.3
68.0
71.3
92.4
110.9
122.2
97.5
3.3
4.1
G
HEI LING CHAU
Flat Rock
HW
M
Rock
Flat
RockFlat
Rock
Flat
TS
TS
Tower 5
þÿ�ÿ�ý�·�¢�„�
116
100
80
60
40
20
4
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�ß�‡�F�˘�
þÿ�ÿ�ý�¾�
þÿ�ÿ�ý�¾�
HEI LING CHAU
HEI LING CHAU TYPHOON SHELTER
Bre
akw
ater
Bre
akwate
r
G
LT
LT
LT
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
Dolphin
Flat Rock
Dolphin
Rubble
HWM
Rubble
HWM
Dolphin
Rubble
Rubble
Rubble HWM
Rubble
HW
M
Flat Rock
Rubble
Rubble
Flat Rock
HW
M
Rubble
Rubble
Rubble
FlatRock
HW
M
þÿ�ÿ�ý�R
oad
FP
FP
FP
FP
FP
FP
78.981.3
47.6
68.0
31.3
69.8
70.2
92.4
110.9
9.4
122.2
4.3
9.8
97.54.9
3.3
4.0
4.1
9.2
9.1
4.1
8.8
L
L
L
60
40
20
60
40
20
þÿ�ÿ�ý�ß�
HEI LING CHAU
G
G
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Flat Rock
Flat
Rock
Flat Rock
Flat Rock
Flat Rock
HW
M
FP
FP
FP
FP
42.6
40.8
35.3
58.2
56.8
45.0
73.8
42.3
56.4
50.7
22.4
821000 E
821500 E
822000 E
822500 E
823000 E
820500 E
813000 N
812500 N
812000 N
811500 N
Existing passenger ferry jetty
Long Route
New temporary
unloading
platform / jetty
Existing heavy load jetty
and berthing facility
USTN FILE: 0019313_9_HLC.dgn
DATE: 03/03/2006
Legend:
Notes:
1. One way traffic system generally in
operation.
2. Night time construction and transportation
not feasible due to CSD security
procedures.
One-way direction of local traffic
on existing road
Two-way direction of local traffic
on existing road
Short Route
Project Site
Long Route
Long Route
Short Route
CLP/CAPCO Commercial Scale Wind Turbine Pilot Demonstration Construction Access Routes for Hei Ling Chau Project Site
FIGURE 2.6e
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
6
and street furniture, and minor road widening and slope works are expected
to be required to facilitate vehicle passage. The Long Route will also be used
for the delivery of general construction materials and plant and of the critical
wind turbine components if they can be broken down into reasonably sized
parts and re-assembled at the Project Site.
Another route, the Short Route, has also been identified as a contingency
measure in the event that the enabling works required for the Long Route
prove to be excessive. This route will involve the upgrading or extension of
the existing jetty in the south-western part of the island. The temporary jetty
will be a steel platform on steel pre-bored H-piles for receiving the heavy
wind turbine components from a derrick lighter. A temporary steel bridge
structure supported on temporary steel piers will be constructed on the slope
above the temporary jetty. The installation of the temporary steel bridge will
require the construction of foundations in the form of spread footing or mini-
piles on the slope above the temporary jetty. A mobile crane will lift the
heavy and bulky components from the temporary steel platform of the jetty to
a waiting trailer on the haul road. The components will then be delivered on
the trailer to the Project Site via the existing road.
Key considerations in the choice of the delivery route will be the material and
method for the construction of the wind turbine tower and the possibility of
breaking down the nacelle into smaller components. If a standard steel
tubular tower is used, the tower will be supplied in three factory-fabricated
tubular sections of lengths up to 23m. It is anticipated that the tower sections
will be delivered on a trailer lorry. An alternative to the steel tubular tower
will be a concrete tower constructed from precast concrete ring segments.
The ring segments will be cast off-site and stitched together at the Project Site
to form a tubular tower. The segments will have diameters from 3.5m to 5m
and a height of about 2.4m.
The passage of long multi-axle articulated vehicles carrying the prefabricated
steel tower sections will require diversion of existing utilities and removal of
some street furniture along the existing road of the Long Route. Widening of
the existing road at critical locations may also be required. For the Short
Route, it is also likely that minor widening or slope trimming may be required
at certain locations for the passage of long vehicles delivering the tower
sections. If the concrete tower option is adopted and the nacelle can be
broken down to smaller components, the Long Route may be able to
accommodate the transportation of the materials and hence the Short Route
may not be required; but this cannot be confirmed until the wind turbine
procurement process is completed.
Table 2.2 presents the key features of the two access routes.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
7
Table 2.2 Key Features of Access Routes
Long Route Short Route
• Widening of existing road at critical locations
for wind turbine component delivery
• Utilities diversion along the existing road
• Some street furniture to be removed and
replaced
• Temporary jetty upgrading or extension
may require works in the foreshore
• Foundations for piers of the temporary
steel bridge on the slope above the
temporary steel jetty
• Minor widening of existing road
connecting the Project Site and the
temporary steel bridge.
The Project Site will occupy an approximate area of around 50m x 85m,
including the lay down areas for construction materials and wind turbine
components. It is currently anticipated that only minor site clearance and
formation will be required. A preliminary engineering review indicates that
the materials underneath the Project Site comprise poor quality fill overlying
rock. A reinforced concrete foundation with pre-bored H-piles will be
required for supporting the wind turbine.
The main construction activities at the Project Site are:
• site clearance and formation;
• pre-bored H-piling and construction of reinforced concrete foundation (9m
x 9m x 2m) for the wind turbine;
• erection of wind turbine tower by assembling pre-fabricated steel tower
sections or stitching of precast concrete ring segments;
• installation of nacelle and rotor blades;
• installation of step up transformer and substation;
• installation of transmission cables between the substation and the 11 kV
supply grid;
• testing and commissioning of the wind turbine system.
2.6.5 Operation of the Project
The operation of the wind turbine, including start-up and shut-down, will be
automatic. The wind turbine will be unmanned and attendance of
operational personnel will only be required during emergencies or routine
maintenance.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
8
2.7 PLANNING AND IMPLEMENTATION PROGRAMME
The Project will be planned and implemented by CAPCO together with
consultants and contractors. There are no known interactions with other
projects. The front-end engineering design for the Project has commenced.
The key stages of the Project, according to the currently envisaged Project
Programme, are presented in Table 2.3.
Table 2.3 Proposed Project Programme
Key Stage of the Project Indicative Date
Commencement of front-end engineering design Q4, 2005
Land application 2006 to 2007
Gazettal under the Foreshore and Seabed (Reclamations) Ordinance
(FSRO) if the Short Route is used and the extension of the jetty at the
typhoon shelter is required
2006 to 2007
Commencement of construction Early 2007
Operation of the wind turbine Late 2007
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
9
3 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT
The Project Site is located in the southern part of Hei Ling Chau (Figure 2.6c).
The area was previously cleared for the storage of materials for other
construction activities and is currently not covered by any Outline Zoning
Plan (OZP).
The northern boundary of the Project Site is close to an engineered slope. An
existing vehicular road is located at the north-western corner of the Project
Site. The Project Site will encroach upon most of the temporary structures
currently used by works contractors for storage. Natural hill slopes are
found to the east and south of the Project Site. The vehicular road to the
north-west will be the access point to the Project Site. A grave is found to the
west of the Project Site.
A helipad is located on top of the cut slope, at a distance of approximately
110m from the northern boundary of the Project Site (the wind turbine will be
located over 150m from the limit of the operation sector of the helipad). The
helipad is in active use. According to information provided by the Civil
Aviation Department (CAD) and GFS, the helipad is used solely by the GFS.
In addition to the areas in the vicinity of the Project Site where the wind
turbine will be installed, the environment along the construction access routes
will need to be considered.
In terms of the ecological environment, the island is dominated by shrubland
and plantation with patches of developed area in between. No declared
monuments, graded buildings, or known archaeological sites have been
identified on the island.
Most of the buildings on the island, including the Hei Ling Chau Correctional
Institution, Hei Ling Chau Addiction Treatment Centre, Hei Ling Chau
Addiction Treatment Centre (Annex), Lai Sun Correctional Institution, the
staff quarters and the administration buildings, will be potential Air Sensitive
Receivers (ASRs) and Noise Sensitive Receivers (NSRs). The locations of
these potential ASRs and NSRs are shown in Figure 3.1a.
Hei Ling Chau is within the Southern Water Control Zone (WCZ) and a
typhoon shelter is found to the south-west of the Project Site.
Visit Room
P
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Visit Room
Block M
Block N
þÿ�ÿ�ý� Pier
LT
HW
M
CW
FP
14.9
L
EE
L
L
L
L
L
L
L
L
P
þÿ�ÿ
þÿ�ÿ
þÿ�ÿþÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Hei Ling Chau
Officers Mess
Block T
20
20
40
60
Basketball
Court
PlaygroundBarbecue Area
Playground
WT
HWM
Flat Rock
HWM
HWMFlat Rock
Flat Rock
Flat Rock
Flat Rock
PO
HWM
HEI LING CHAU ROAD
þÿ�ÿ�ý�
þÿ�ÿ�ý�
FP
CW
CW
FP
CW
FP
Road
FP
Road
17.3
3.6
25.643.3
21.9
45.6
46.8
39.5
10.8
49.1
6.4
L
LL
L
L
L
L
LL
L
LL
L
L
L
L
LL
HL
L L
LL
L
L
L
20
40
40
20
HEI LING CHAU
G
HWM
Flat Rock
HWM
HWM
Flat Rock
Flat Rock
FP
FP
FP
FP
FP
43.5
40.6
P
PH
PH
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
Mess
Blo
ck Q
Blo
ck P
Blo
ck H
Holiday Bungalow A&B
Blo
ck I
Blo
ck G
Bungalow A
Block F
Bungalow
E
Bu
ng
alow
D
6
20
40
40
20
Pie
r
Refuse Transfer Station
HEI LING CHAU
Playground
ES
S
Septi
c Tank
Pipeline
WT
CUL
INC
WIP May 2005
SHR
LT
SHRSHR
SHR
Seaw
all
HW
M
Rocky
Area
Rubble
Rubble
Flat Rock
HW
M
Flat Rock
H W M
PO
HW
M
HWM
HW
M
Seaw
all
þÿ�ÿ�ý�
Road
Road
FP
Road
Road
FP
Road
Ram
p
4.9
3.9
22.323.3
53.0
38.7
43.7
42.643.6
44.0
3.7
4.1
3.9
4.6
LL
L
L
L
L
L
L
L
L LL
L
L
L LL
L
L
L
L
L
L
L
L
LL
H
L
L
L
L
LH
L
L
L
H
L
L
L
L
H
L
L
L
L
L
L
L
þÿ�ÿ�ý�
P
TS
TS
TS
TS
TS
TS
P
Podium
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ�ý
�œ�⁄�
ì�
þÿ�ÿ�ý�ß
�‡�F�˘�
þÿ�ÿ�ý�y�À�s�
þÿ�ÿ�ý
�ı�
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ
þÿ�ÿ�ý�°�¢�„� þÿ�ÿ�ý�›
þÿ�ÿ�ý�›
þÿ�ÿ�ý�–�¢�„�
Block S
Blo
ck R
Den
tal
Cli
nic
Hei
Lin
g Chau
Addic
tion T
reat
men
t C
entr
e
Lai Sun Correctional Institution
Geo
rge
Hal
l
Block A
Block E
Blo
ck D
Blo
ck B
Block C
Tower 1 Bungalow C
Bungalow B
Tower 2
4-10
11
-1
2
15-21
22
23
24-27
2815
31-34
29
30
60
80
60 80
20
100
100
40
60
80
10
0
80
60
806
0
60
40
40
28
4020
20
20
20
40
þÿ�ÿ�ý�q�„�
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�
þÿ�ÿ�ý�‹�þÿ�ÿ�ý�
þÿ�ÿ�ý�x�
þÿ�ÿ�ý�
þÿ�ÿ�ý�ß�‡�F�˘�
Telephone
Exchange
ES
S
HEI LING CHAU
HL
Church
ESS
ET
Football Field
Stand
Basketball C
ourt
Workshop
HEI LING CHAU TYPHOON SHELTER
ESS
ESS
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�˘�
þÿ�ÿ�ý
�˘�
CUL
AR
CH
PipelineWT
Pipel
ine
Pipeline
CULCUL
CUL
Septic
Tank
Septic T
ank
WT
WT
WT
WT
W
M
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
Flat Rock
HW
M
Flat RockFlat
Rock
Flat Rock
HWM
Flat Rock FlatRock
Flat Rock
Flat Rock
Flat Rock
Flat Rock
Dolphin HW
M
PO
PO
PO
PO
HE
I LIN
G C
HA
U R
OA
D
þÿ�ÿ�ý�ß�‡�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Tra
ckF
P
FP
Ro a
d
FP
Road
Road
FP
Road
Road
FP
Track
Ro
ad
Road
Road
Road
FP
11.2
8.8
44.4
40.2
115.5
40.9
81.8
104.2
82.7
62.4
79.1
44.2
27.5
51.1
26.8
51.6
47.4
26.8
45.5
55.6
48.3
38.0
41.1
37.8
23.8
3.2
7.9
3.221.3
18.0
14.0
4.3
13.912.5
3.6
9.4
8.8
7.5
16.8
43.0
13.6
17.4
17.2
L
L
L
L
E
L
L
L
H
L
ELL
LLL
L L
L
LL L
L
LL
L
LL
L
LL
L L
L
H
L
L L
L L
L
LL L
L L
E
L
L
L
L
L
L
L
L
L
L
L
L
H
PH
TS
TS
TS
TS TS
TS
TS
PH
M
A
L
B
K
C
J
D
I
E
H
F
G
N
O
In
terv
iew
Blo
ck
Adm
inin
istr
atio
nB
lock
Staff Rest B
lock
Dining Hall A
Dining Hall B
þÿ�ÿ�ý�|�•
�
þÿ�ÿ�ý�æ�ƒ�
þÿ�ÿ�ý�¾�´�
ß�›�
þÿ�ÿ�ý�„
þÿ�ÿ�ý�„
20
40
40
60
80
100
60
80
100
120
140
100
120
160
14
0
180
160
140 80
60
120
100
100
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�—�ƒ�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�x�þÿ�ÿ�ý�‹�
þÿ�ÿ�ý�j�⁄�h�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�ˆ�ƒ�ô�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�ß�‡�F�˘�
þÿ�ÿ�ý�~�
þÿ�ÿ�ý�E�
þÿ�ÿ�ý�E�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
HEI LING CHAU
Badminton Court
Workshop
Basketball CourtFootball Field
ES
S
Main Gate
Lodge &Visit Room
Kitchen
Store
Show
er
Sewage TreatmentPlant
Show
er
HEI LING CHAU
CORRECTIONAL INSTITUTION
Washing Area
Clinic
Clinic
School
School
ESS
Nursery
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Pip
eline
Pipelin
e
WT
CUL
CUL
CUL
WT
WT
þÿ�ÿ�ý�Reservoir
PO
HEI LING CHAU ROAD
HE
I L
IN
G C
HA
U R
OA
D
þÿ�ÿ�ý�ß�‡�
þÿ�ÿ�ý
�ß�‡�
FP
FP
FP
FP
CWC
W
FP
FP
FP
FP
FP
32.7
75.6
54.8
81.9
60.5
58.1
73.0
68.8
112.7
106.1
112.8
141.5
131.2
91.0
131.5
181.1
84.5
183.3
110.8 100.4
109.3
E
E
E
E
E
E
L
E
H
L
L
L
E
H
L
E
L
E
L
E
L
L
L
H
H
H
H
L
þÿ�ÿ�ý�†�¢�„�
Tower 3
80
60
40
20
þÿ�ÿ�ý�ß�‡�F�˘�
HEI LING CHAU TYPHOON SHELTER
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�·�
HW
M
HWM
Flat Rock
Flat Rock
Dolphin
Dolphin
þÿ�ÿ�ý�
FP
Road
58.1
58.3
12.2
4.8
2.9
5.53.9
2.8
L
L
L
LL
EE
E
L
L
L
L
L
L
L
L
L
L
Sto
re
Launary R
oom
Office
TS
Din
nin
g
Room
Hospital
Workshop
Workshop
P
PH
TS
TS
Hei Ling Chau Dog Kennel
Telephone
Exchange
Isolated Cell
�Guard House
Adm
inis
trat
ion
Blo
ck
Tower 4
120
120
10
0
100
80
80
60
40
20
60
80
40
60
80
20
4
HEI LING CHAU
HEI LING CHAUADDICTION TREATMENT CENTRE
(ANNEX)
Jetty
HL
HEI LING CHAU TYPHOON SHELTER
þÿ�ÿ�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Graves
Pip
elin
es
Pip
elin
e
Pip
elin
e
Pip
elin
e
WT
Pip
elin
es
Pipelines
Pip
elin
e
G
G
W
W
HWM
HW
M
Rocky
Area
HWM
HW
M
HEI LIN
G C
HA
U R
OA
D
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Road
Road
Road
FP
FB
FP
Road
FP
Road
TrackRoad
Ramp
CW
Road
Road
Road
FP
Road
136.2
75.4
77.067.8
74.1
123.5
124.1
138.6
102.4
109.3
128.471.9
84.0
92.1
93.9
7.6
5.3
88.2
89.6
94.1
2.7
4.288.0
6.0
5.9
54.0
84.7
3.77.6
83.8
93.2
70.4
3.0
79.2
2.9
91.0
17.5
87.7
31.1
38.0
94.9
47.6
53.6
50.7
59.7
70.0
68.4
66.9
71.770.667.9
L
E L
L L
L
L L
LE
L
L
LL
E
L
EL
L
L
L
L
LE
L
L
E
LL
L
L
L
E
L
L
L
E
L
L
L
L
E
L
L
L
L
L
LL
L
L
LL
E
L
L
L
L
L
L
L
L
E
L
L E
L
E
L
L
L
LL
L
E
HL
L
L L
LLL
L
L
L
L
L
L L
L
LL
L
L L
L
E
L
LL
E
L
L
L L
L
EL
E
L
PH
60
40
20
þÿ�ÿ�ý�P�
SUNSHINE ISLAND
(CHAU KUNG TO)
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
þÿ�ÿ�ý�
Rocky
Area
HW
M
RockyAreaRocky
Area
Flat Rock
62.960.4
56.1
57.8
53.1
51.0
69.5
5.9
6.1
PH
20
40
60
80
þÿ�ÿ�ý�ß�HEI LING CHAU
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
HW
M
Rocky Area
HW
M
Rocky Area
Flat Rock
HW
M
Flat Rock
HW
M
FP
5.3
4.7
5.3
5.3
15.7
4.8
2.3
34.2
47.3
72.6
72.6
12.9
3.9
3.6
75.8
96.3
70.5 2.5
86.1
31.2
3.0
23.6
2.4
11.1
8.8
6.0
4.1
5.3 3.4
E
20
40
72
60
40
20
HEI LING CHAU
þÿ�ÿ�ý�
HW
M
HW
M
Flat Rock
þÿ�ÿ�ý
�T
rack
3.0
45.4
7.32.4
6.1
7.6
3.9
63.7
64.5
76.1
70.9
73.3
63.1
70.1
116
100
80
60
40
20
4
78.981.3
68.0
71.3
92.4
110.9
122.2
97.5
3.3
4.1
G
HEI LING CHAU
Flat Rock
HW
M
Rock
Flat
RockFlat
Rock
Flat
TS
TS
Tower 5
þÿ�ÿ�ý�·�¢�„�
116
100
80
60
40
20
4
þÿ�ÿ�ý�ß�
þÿ�ÿ�ý�ß�‡�F�˘�
þÿ�ÿ�ý�¾�
þÿ�ÿ�ý�¾�
HEI LING CHAU
HEI LING CHAU TYPHOON SHELTER
Bre
akw
ater
Bre
akwate
r
G
LT
LT
LT
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�·�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý
�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�þÿ�ÿ�ý�
Dolphin
Flat Rock
Dolphin
Rubble
HWM
Rubble
HWM
Dolphin
Rubble
Rubble
Rubble HWM
Rubble
HW
M
Flat Rock
Rubble
Rubble
Flat Rock
HW
M
Rubble
Rubble
Rubble
FlatRock
HW
M
þÿ�ÿ�ý�R
oad
FP
FP
FP
FP
FP
FP
78.981.3
47.6
68.0
31.3
69.8
70.2
92.4
110.9
9.4
122.2
4.3
9.8
97.54.9
3.3
4.0
4.1
9.2
9.1
4.1
8.8
L
L
L
60
40
20
60
40
20
þÿ�ÿ�ý�ß�
HEI LING CHAU
G
G
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
þÿ�ÿ�ý�
Flat Rock
Flat
Rock
Flat Rock
Flat Rock
Flat Rock
HW
M
FP
FP
FP
FP
42.6
40.8
35.3
58.2
56.8
45.0
73.8
42.3
56.4
50.7
22.4
821000 E
821500 E
822000 E
822500 E
823000 E
820500 E
813000 N
812500 N
812000 N
811500 N
Legend:
Notes:
1. One way traffic system generally in
operation.
2. Night time construction and transportation
not feasible due to CSD security
procedures.
One-way direction of local traffic
on existing road
Two-way direction of local traffic
on existing road
Project Site
Long Route
Short Route
USTN FILE: 0019313_15_HLC.dgn
DATE: 10/03/2006
Administration
Block
Hei Ling Chau
Correctional
Institution
Hei Ling Chau
Addiction Treatment
Centre (Annex)
Lai Sun
Correctional
Institution
Staff Quarters
FIGURE 3.1a
CLP/CAPCO Commercial Scale Wind Turbine Pilot Demonstration
Potential Air and Noise Sensitive Receivers for Hei Ling Chau Project Site
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
10
4 POSSIBLE IMPACT ON THE ENVIRONMENT
The construction and operation of the Project may give rise to potential
environmental impacts. These potential impacts are identified in Table 4.1
and are addressed in the sections that follow.
Table 4.1 Potential Environmental Impacts Arising from the Project
Potential Impact Construction Operation
• Gaseous Emission ���� –
• Dust ���� –
• Odour – –
• Noise ���� ����
• Night-Time Operations – ����
• Traffic (Land & Marine) ���� –
• Liquid Effluents, Discharge or Contaminated Runoff ���� –
• Generation of Waste or By-products ���� –
• Manufacturing, Storage, Use, Handling, Transport, or
Disposal of Dangerous Goods
– –
• Hazard to Life – –
• Landfill Gas Hazard – –
• Disposal of Spoil Material ���� –
• Disruption of Water Movement or Bottom Sediment ����(only if the
Short Route is
used) –
• Unsightly Visual Appearance ���� ����
• Cultural & Heritage – –
• Terrestrial Ecology ���� ����
• Marine Ecology – –
• Cumulative Impacts – –
Legend:
‘����’ = Possible ‘–‘ = Not Expected
4.1 CONSTRUCTION PHASE
4.1.1 Air Quality
Given the limited number of construction vehicles and plant required for the
construction of a wind turbine, the potential impact from gaseous emissions
from these vehicles and plant will be negligible. Dust nuisance is the only
potential air quality impact during the construction of the Project.
Foundation construction, piling and stabilisation works will be the main
potential sources of construction dust. With the small Project Site area and a
relatively short construction period, adverse impacts associated with
construction dust are not expected.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
11
4.1.2 Noise Impact
The amount of construction equipment to be used during construction is small
given the relatively small scale of the Project and the nature of construction.
A small number of Powered Mechanical Equipment (PME) such as generator,
excavator, concrete lorry mixer, heavy duty tracked crane and mobile crane
will be used during construction. If the Short Route is required for the
delivery of bulky wind turbine components, the potential noise impact to the
Hei Ling Chau Addiction Treatment Centre (Annex) during the construction
of the temporary jetty extension and the temporary steel bridge will need
careful consideration. Other than this, no adverse construction noise impact
is envisaged.
4.1.3 Traffic Generation
With the relatively small scale and short duration of construction activities,
the amount of marine and road traffic generated will be small. As the road
system on the entire island is under the control of CSD, any potential traffic
issues can also be resolved through close liaison and frequent communication
with CSD. It is expected that the construction workforce required for the
works will be small. The construction workers should be able to travel to the
island using the existing scheduled passenger ferry service. No adverse
impacts on traffic are anticipated.
4.1.4 Waste Management
The construction activities associated with the Project may generate the
following broad categories of waste:
• construction and demolition (C&D) materials, mainly inert materials
arising from foundation and piling works;
• small quantities of chemical waste, such as batteries and lubricating oils
from the maintenance of construction vehicles and equipment;
• small quantities of general refuse, including food waste from the on-site
work force and the packaging from the construction materials.
It is expected that inert materials generated from the construction works will
be properly segregated and will be reused for backfilling on-site. The
amount of C&D waste requiring off-site disposal and the associated potential
impacts will be negligible.
The construction activities would involve a limited number of construction
vehicles and equipment. The quantities of chemical waste to be generated
from regular maintenance of these vehicles and equipment should be minimal
and no impact is expected in this respect. With proper housekeeping
measures and refuse collection in place, minimal or no impact is expected to
result from refuse generated during the construction phase of the Project.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
12
4.1.5 Water Quality
The majority of the construction activities associated with the Project will
involve only pre-fabricated steel or precast concrete components, and
therefore the potential for adverse water quality impacts arising from the
works on-site will be low. Adverse water quality impacts from site runoff
are not expected if proper site management practices are fully implemented.
Marine works in the foreshore maybe required for upgrading or extension of
the existing jetty within the typhoon shelter if the Short Route is adopted.
Potential water quality impacts may include a short-term increase in
suspended solids in the water column and a minor alteration of the
hydrodynamic regime by the temporary works. However, with the small
size of the jetty extension (approximately 12m x 20m) and the short duration
over which the temporary jetty extension is required, adverse impacts to water
quality are not anticipated if proper mitigation measures are implemented.
4.1.6 Visual Impact
Construction activities, including site formation and construction activities for
wind turbine foundation, piles and pile caps, lifting of turbine components by
crane and temporary hoarding may pose limited and transient visual impacts
on the surrounding Visual Sensitive Receivers (VSRs). No adverse impacts
are envisaged owing to their transient nature.
4.1.7 Ecology
The Project Site has been optimised to avoid sensitive wildlife habitats,
including that for the rare and endemic Bogadek’s Burrowing Lizard
previously recorded on the island. The proposed Project Site is an area of
wasteland and is dominated by weeds and climbers. The wasteland within
the Project Site was used as a storage area and occupied by surplus
construction materials. Site clearance will be required before construction for
the Project. The enabling works on the access routes may also require the
removal of vegetation. An initial review indicates that most of the plant
species found in the vicinity of the Project Site are common in Hong Kong.
No significant ecological impacts are envisaged during the construction phase
of the Project.
4.2 OPERATIONAL PHASE
4.2.1 Noise Impact
The main sources of noise from the operating wind turbine will include
aerodynamic noise around the rotor blades and the rotation of mechanical
parts. Modern wind turbines have incorporated low-noise designs as
standard features. Sound insulation materials are used in the nacelle to
totally enclose the generator, shaft and gearbox so as to minimise medium and
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
13
high frequency noise. Airfoil blades are purposely designed to reduce
aerodynamic noise generated during wind turbine operation. Operational
noise impacts at the closest NSR, Hei Ling Chau Addiction Treatment Centre
(Annex) at a distance of approximately 400m, are expected to be negligible as
a result of the built-in standard low-noise features of the wind turbine and the
large horizontal separation distance with topographical screening.
4.2.2 Visual Impact
Potential visual impacts during the operational phase are associated with the
wind turbine structure and the rotating blades. The wind turbine will have a
rotor tip height of up to 90m and a swept area of about 2,800 m2. The wind
turbine will be unavoidably visible from the surrounding areas, such as the
south-eastern part of Lantau and Cheung Chau and over the sea. Whether
the visual impact is beneficial or adverse would however very much depend
on the viewers’ acceptance of the use of this kind of renewable energy
generation. The level of acceptance by viewers on the island is expected to be
high as environmental awareness amongst CSD staff is generally high and the
department is supportive of the use of renewable energy.
As a result of the proximity of the Project Site to an actively operated helipad,
it is envisaged that certain conspicuous markings and hazard warning lighting
will be required for aviation safety reasons. Consultation with CAD and GFS
will be necessary to ensure that aviation safety requirements are met while the
potential visual impacts produced by such markings and lighting are
minimised.
Some visual disturbances may also arise as a result of the periodic reflection
and sunlight interruption produced by the rotating blades. Careful
considerations on the surface finish of rotor blades should minimise such
disturbances. A suitable overall colour scheme for the wind turbine may also
be considered to further reduce the visual intrusion of the Project.
4.2.3 Ecology
Bird collision is the main concern for any wind turbine development in terms
of ecological impacts during operation. The Project Site is not situated within
any important bird habitat or on the flight path of migratory birds. These
factors, combined with the fact that a single wind turbine will be installed,
would present relatively low risks of bird collision.
The noise produced by the operating wind turbine will be a low, constant
sound of a predictable level. As the Project Site is not within any important
bird habitat, the significance of potential noise impacts on birds is expected to
be low.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
14
5 DESCRIPTION OF MITIGATION MEASURES
5.1 CONSTRUCTION PHASE
5.1.1 Air Quality
With the limited dust impacts associated with the construction of the Project
implementation of standard construction site management practices for dust
control, including erection of site hoardings and watering of any exposed soil
surfaces, will be sufficient to further minimise any residual dust impacts.
5.1.2 Noise
Implementation of standard construction site management measures for noise
control, such as the use of well-maintained construction plant and planning of
the construction plant team, will be sufficient to ensure compliance with the
construction noise limits.
5.1.3 Water Quality
Site run-off and drainage impacts will be minimised with reference to the
control measures stipulated in the EPD's Professional Persons Environmental
Consultative Committee Practice Note for Professional Persons on Construction Site
Drainage (ProPECC PN 1/94). The implementation of good housekeeping and
best management practices for stormwater will ensure that Water Pollution
Control Ordinance (WPCO) standards are met.
In the event that the Short Route is adopted and works at the foreshore are
required, measures to reduce the release of suspended solids into the typhoon
shelter will be implemented as required during the construction of the
temporary jetty extension to minimise the potential water quality impacts.
5.1.4 Waste Management
Only limited quantities of construction waste are expected to arise from the
construction of the Project, of which only a small portion would require
disposal at landfills. To further minimise waste arisings and to keep
environmental impacts within acceptable levels, good site management
practices will be adopted to minimise waste generated and waste on-site will
be properly segregated to increase the feasibility of recycling certain
components of the waste streams, such as steel.
In the event that chemical waste is generated during the construction of the
Project, it will be properly stored in accordance with the EPD’s Code of Practice
on the Packaging, Labelling and Storage of Chemical Waste before collection for
disposal by a licensed Chemical Waste Collector. General refuse generated
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
15
on-site will be stored in enclosed bins and transported to the refuse transfer
facility on the island for off-site disposal.
5.2 OPERATIONAL PHASE
5.2.1 Noise
With the use of a wind turbine with a built-in low-noise design and the large
separation with topographical screening between the Project Site and the
nearest NSR, operational noise impacts are expected to be negligible. No
additional mitigation measure is considered necessary.
5.2.2 Visual Impact
With careful consideration given to the surface finish of rotor blades to
minimise the periodic reflection and sunlight interruption and the use of a
colour scheme to reduce visual intrusion, no further visual mitigation measure
is considered necessary during the operational phase.
5.2.3 Ecology
The risks of bird collision with the wind turbine have been minimised through the careful selection of the Project Site location and the avoidance of important bird habitats. No additional mitigation measure is considered necessary.
A COMMERCIAL SCALE WIND TURBINE PILOT DEMONSTRATION AT
HEI LING CHAU
ENVIRONMENTAL RESOURCES MANAGEMENT CAPCO
16
6 USE OF PREVIOUSLY APPROVED EIA REPORTS
In the preparation of this Project Profile, reference has been made to the EIA
Report submitted by The Hongkong Electric Co Ltd and approved on 27
October 2004, for a similar project entitled Renewable Energy by a Wind Turbine
System on Lamma Island (EIAO Register No: AEIAR- 080/2004). The nature
and purpose, scale and operations of the wind turbine system assessed in the
aforementioned approved EIA Report are similar to those of the wind turbine
pilot demonstration presented in this Project Profile.