Civic Exchange and WWF Hong Kong Energy Forum 20: Renewables and Electricity Market Reform Panel discussion: Insider story Opportunities of Renewable Energy Development in China and Hong Kong Dr. Jimmy Tong, Energy Advisor of Friends of the Earth (Hong Kong) Date: 11 May 2015 (Monday) Time: 11:15-12:30 Venue: Wanchai, Hong Kong.
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Civic Exchange and WWF Hong Kong
Energy Forum 20: Renewables and Electricity Market Reform
Panel discussion:
Insider story Opportunities of Renewable Energy Development in China and Hong Kong
Dr. Jimmy Tong, Energy Advisor of Friends of the Earth (Hong Kong)
Date: 11 May 2015 (Monday) Time: 11:15-12:30 Venue: Wanchai, Hong Kong.
Renewable Energy
A. Small Scale, On-site, Distributed Generation
B. Off-Shore Wind Farm
C. Solar Energy
D. Building Integrated RE Design Strategy
Source: windpowerengineering.com
Source: Sino Group
Source: Inha U Source: Arup
Source: Arup Source: Arup
• Power generation by combustion of Biodiesel
• Hot water from waste heat for dehumidification and space cooling
• Zero carbon emission source for space cooling and power
• Exceeded power supply to the grid for embodied carbon trade-off
LV Switch
Co
ol
Dry
Air
16°
C
Chil
led
Wat
er r
e-use
d
for
rad
iant
coo
ling
Biodiesel
Absorption
Chiller 70 kW
PV
Electric Chiller
210 kW
+
Desiccant
Wheel
High Temp
Coil
Prime
Mover
Generator
100 kW
Earth
Cooling 16° C
Site and Building
Consumption
Export to
Grid
87 MWh
143 M
Wh
131 MWh
99 M
Wh
85° C
7° C 33° C
28° C
A. Biodiesel Tri-generation System
Project: Zero Carbon Building, Hong Kong, CIC
4
A. Wind Energy
Project: The Green Atrium, Hong Kong, New World
5
B. Offshore Wind Farm
Project: Offshore Wind Farm, Hong Kong, CLP
• 67 – 3MW or 40 – 5MW
• capacity to produce ~1% of total HKSAR annual electricity needs.
• source: ESB-146/2006 Issue 3, May 2009
Buildings and Open Spaces
• Database with Geographic Information System (GIS)
• Statistical methods
• Detailed site survey
Government Community Center Institutional Building Business Park
Cheung Sha Wan Government Office
C. Urban PV methodology
Overall PV Potential (Assuming 15% cell efficiency)
Existing Buildings
Future Buildings
BIPV 115.4 GWh 479.0 GWh
Non-BIPV 91.3 GWh 52.0 GWh
Total 738 GWh
C. Case Study – Hong Kong
Passive Design Active Design Renewables
Occupant Behavior
D. Building-Integrated RE Design Strategy
Citation: Cheng, V.S.Y., Tong, J.C.K. (2014). Effect of Urban Density on PV Performance. In M.A. Gill (Ed.), Photovoltaics: Synthesis, Applications and Emerging Technologies (pp. 173-196). Nova Science Publishers, Inc., Hauppauge, NY.
Annual Solar Collection
1200
1000
800
600
400
200
0
Solar Radiation
(kWh/sqm/yr)
Avg = 1350
Avg = 1320
Avg = 1250
Avg = 1180
N
Further Reference
Citation: Tong, J.C.K. (2014). Numerical Simulations of Small Wind Turbines - HAWT Style. In J.P. Abraham and B. Plourde (Eds.), Small-Scale Wind Power: Design, Analysis, and Environmental Impacts (pp. 129-146). Momentum Press, New York, NY.
Further Reference
Public Consultation on the Future Development of the Electricity Market
• Shall we have a carbon reduction target ?
• Shall we have a RE target? – Should we ask the utilities to provide additional RE
capacity? – Can/Should we request the additional energy from
China in future all from RE?
• Shall we have decentralized storage?
– Should we ask for more capable solution providers and operators?
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