New commercial or residential buildings, and specific alterations, additions and remodels require the installation of a photovoltaic energy generation system. Any addition to an existing commercial building which increases the square footage by 1,800 square feet or greater and all commercial remodels, alterations or repairs that are made involving demolition, remodel or repair of more than 50 percent of the structure.

Any addition to an existing residential building which increases the square footage by 75 percent or greater and all residential remodels, alterations or repairs that are made involving demolition, remodel or repair of more than 75 percent of the structure.

At the time of submittal of a building permit application for a new commercial building or addition over 1,800 square feet or alterations, remodel or repairs over 50 percent or more of the structure or new residential building or residential addition, alteration, remodel or repairs of 75 percent or more of the structure, an applicant shall be required to submit plans and specifications for a solar photovoltaic system included in the submittal application.

Buildings and structures of an accessory character as defined in the California Building and Residential Code as Group U occupancies and residential buildings 840 square feet or less are not regulated by this chapter.