Dedications in Application of Renewable Energy
The Water Supplies Department (WSD) is committed to providing a reliable and adequate supply of wholesome potable water and sea water to our customers and, at the same time, to develop and apply renewable energy initiatives in striving for protecting the environment.
WSD has implemented three small-scale pilot projects of floating photovoltaic system at Shek Pik Reservoir, Plover Cove Reservoir and Tai Lam Chung Reservoir, each of which has designed for a generation capacity of 100kW. Each of the system can generate as much as 120,000 units (kWh) of electricity annually. The amount of electricity generated is equivalent to the annual electricity consumption of 36 average households with a reduction of 84 tonnes of CO2 emission.
WSD has also planned to implement large-scale renewable energy projects, including a 5 MW floating solar farm at Plover Cove Reservoir and a 10 MW solar farm at South East New Territories Landfill.
Floating Solar Power System
Floating Solar Power System is a solar power system with photovoltaic panels seating on floating platform with operation principle same as a ground mounted solar power system. Both systems use photovoltaic panels to harvest solar energy and convert to electrical energy and thus supply electricity. Therefore, the use of fossil fuel and the arising carbon emission can be reduced.
Benefits of Installing Floating Solar Power Systems in Reservoirs
Reduce water evaporation of impounding reservoirs by avoiding the water surface exposed under the sunlight
Suppress algae growth to improve the water quality because of less photosynthesis effect
Reduce carbon emissions by using less fossil fuel
Enhance power generation efficiency of the system due to cooling effect of water
Shek Pik Reservoir
| Facilities Powered | Shek Pik Reservoir Raw Water Pumping Station |
|---|---|
| No. of Photovoltaic Panels | 352 nos. |
| Total Area |
Around 1,100m2
(Comparable to the size of a standard swimming pool / Occupying nearly 0.1% of the reservoir’s surface area)
|
| Design Capacity | 100kW |
| Annual Electricity Generated |
Around 120,000kWh
(Equivalent to the yearly power consumption of 36 families)
|
| Annual Reduction of Carbon Emissions | Around 84tons |
| Completion Date | 2017.02 |
Plover Cove Reservoir
| Facilities Powered | Plover Cove Reservoir Air Compressor House |
|---|---|
| No. of Photovoltaic Panels | 352 nos. |
| Total Area |
Around 1,100m2
(Comparable to the size of a standard swimming pool / Occupying nearly 0.01% of the reservoir’s surface area)
|
| Design Capacity | 100kW |
| Annual Electricity Generated |
Around 120,000kWh
(Equivalent to the yearly power consumption of 36 families)
|
| Annual Reduction of Carbon Emissions | Around 84tons |
| Completion Date | 2017.10 |
Tai Lam Chung Reservoir
| Facilities Powered | Tai Lam Chung Air Compressor House |
|---|---|
| No. of Photovoltaic Panels | 188 nos. |
| Total Area |
Around 1,100m2
(Comparable to the size of a standard swimming pool / Occupying nearly 0.1% of the reservoir’s surface area)
|
| Design Capacity | 100kW |
| Annual Electricity Generated |
Around 120,000kWh
(Equivalent to the yearly power consumption of 36 families)
|
| Annual Reduction of Carbon Emissions | Around 84tons |
| Completion Date | 2022.04 |
UPCOMING LARGE-SCALE PROJECTS OF RENEWABLE ENERGY - Plover Cove Reservoir
| Facilities Powered | Harbour Island Raw Water Pumping Station |
|---|---|
| Total Area | Around 40,000m2 |
| Design Capacity | 5MW |
| Annual Electricity Generated |
6,000,000kWh
(Equivalent to the yearly power consumption of 1,800 families)
|
| Annual Reduction of Carbon Emissions | Around 4,200tons |
| Anticipated Completion Date | 2026 |
Proposed Floating Solar Farm
UPCOMING LARGE-SCALE PROJECTS OF RENEWABLE ENERGY - South East New Territories Landfill
| Facilities Powered | Tseung Kwan O Desalination Plant |
|---|---|
| Total Area | Around 110,000m2 |
| Design Capacity | 10MW |
| Annual Electricity Generated |
10,000,000kWh
(Equivalent to the yearly power consumption of 3,000 families)
|
| Annual Reduction of Carbon Emissions | Around 7,000tons |
| Anticipated Completion Date | 2026 |
Proposed Solar Farm