Recent projects of building integrated photovoltaic in Hong Kong

In Hong Kong, a number of medium-scale Building Integrated Photovoltaic (BIPV) systems were completed in last few years. These BIPV projects included government building, commercial building, schools, institutional building. The power rating the BIPV system for each project is in the order of tens of kilowatts. Most of these BIPV systems are gird-connected type to eliminate the bulky and troublesome battery banks. Some of these projects are retrofitting on existing buildings; while some are parts of a new building. The paper will give details on the design of these PV systems in Hong Kong, including system configurations, design considerations, protections, grid-connection interfacing, power quality issues, their performance, technical difficulties encountered, and experience gained.