Estimation of Hong Kong's solar energy potential using GIS and remote sensing technologies

Man Sing Wong, Rui Zhu, Zhizhao Liu, Lin Lu, Jinqing Peng, Zhaoqin Tang, Chung Ho Lo, Wai Ki Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

69 Citations (Scopus)


It investigates the spatial distribution of cloud coverage through geostationary satellites from the Multi-functional Transport Satellite (MTSAT). The results indicate that a non-prominent spatial variation of cloud cover presides over a majority of Hong Kong territories. Appropriate locations for deploying solar PV panels, such as rooftops, were delineated using RS, GIS, and existing ancillary data. Extraction and filtering of pixels based on a set of criterions were used to identify optimal PV rooftops. This study shows that the summarization of PV potentials in Hong Kong is 2.66 TWh on building rooftops. The methodologies and findings from this study permits detailed spatial estimation of city-wide solar energy potential, and assists the policy-decision process on the use of renewable energy in Hong Kong.
Original languageEnglish
Pages (from-to)325-335
Number of pages11
JournalRenewable Energy
Publication statusPublished - 1 Dec 2016


  • Building rooftop
  • Photovoltaic potential
  • Satellite imagery
  • Solar radiation

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment


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