HELIOS: Solar rights analysis system for apartment buildings

Yoon Bok Seong, Jae Han Lim, Myoung Souk Yeo, Il Du Goh, Kwang Woo Kim

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


In Korea, the development of high-rise apartment buildings has brought about residential environment problems such as violation of solar rights. The number of civil petitions and disputes over solar rights has increased recently. Solar rights are demanded when buildings are restricted to solar access by adjacent buildings. In other words, the geometrical characteristics of new buildings influence the solar access of adjacent buildings. This problem has negatively affected human health, work productivity, thermal comfort, and visual comfort-Comment. As a measure, the Korean building code on solar rights was enacted to protect the rights of residents to solar access. As a result, a solar rights analysis system was developed to evaluate the solar rights in apartment buildings, quantitatively. Therefore, the main objectives of this study are to standardize the solar rights analysis process and data structure, and develop a solar rights analysis system (HELIOS). To this end, the definition of 'solar right' is examined by studying the various relevant literatures, and solar rights assessment methods are investigated to apply to the solar rights analysis system. The geometrical characteristics of apartment buildings are observed, and the geometric elements are extracted to create the data structure. Then the hierarchy and the relationships between these geometric elements are systematically clarified. Data structure for solar rights analysis system using XML is designed, HELIOS is developed by system integration of data structure, and analysis algorithms are developed according to the assessment processes and verified by field measurements.

Original languageEnglish
Pages (from-to)723-741
Number of pages19
JournalSolar Energy
Issue number6
StatePublished - Jun 2006

Bibliographical note

Funding Information:
This research (99-065) was financially supported by the Engineering Research Institute of Seoul National University Ministry and Korea Institute of Construction Technology, and the authors are grateful to the authorities for their support.


  • Apartment buildings
  • Right of light
  • Shadow
  • Solar access
  • Solar rights


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