IAPMO has collaborated with the National Electrical Contractors Association (NECA) and the Los Angeles Department of Water and Power (LADWP) to produce an installation standard for solar photovoltaic (PV) and energy storage systems (ESS) in residential applications. This collaboration resulted in the development of IAPMO IS 34 (Installation Standard for Residential Solar Photovoltaic and Energy Storage Systems) which addresses the most relevant and comprehensive provisional language for the installation of these systems.
IAPMO IS 34 addresses plan details, electrical requirements and calculations, roof mounted panels, ground-mounted arrays, marking and labeling, and product safety standards for PV equipment. Annexes were created to provide additional information pertaining to size and optimization of solar photovoltaic with energy storage systems (PV-ESS), best practices for electrical work safety, smart solar monitoring technology and sample site plans for various residential PV and PV-ESS. This comprehensive document serves as the first illustrative manual of its kind in the nation. The IS 34 Installation Standard was generated by a committee of experts in the installation and inspection of solar PV systems including: LADWP, NECA, Aztec Solar, Sunrun, CSULA, SunEarth, Sound Geothermal, Donald F. Dickerson Associates, ASHRAE and Southern California Pipe Trades Council.
