Table 4: The definition of the key factors of BIPV development.

Key factorDefinition

InsulationBlock thermal radiation heat from the sun and reduce indoor heat loads

Daylight penetrationIncrease PV module light penetration and reduce interior lighting power demands

Artistic visualPV fusion of the exterior of a building improves architectural aesthetics

Antistrong wind and rainResistant to strong wind and rain, thereby increasing building security

AntiearthquakeResistant to earthquakes, thereby increasing building security

FireproofResistant to fire, avoiding fire spreading from inside a building to adjacent buildings and avoiding external fires spreading inside

National technical building regulationsMust comply with national standards

Compliance with building rulesMust comply with construction technique rules

Compliance with construction material testsMust comply with specifications for inspection and testing