The National Electrical Manufacturers Association (NEMA) published ANSI C136.40-2014 American National Standard for Roadway and Area Lighting Equipment—Solar Lighting Systems.

ANSI C136.40 defines the electrical and mechanical requirements of standalone solar-type light systems for use in roadway and area lighting equipment. This revision provides guidance on the relationship between the energy produced by the solar module(s), stored by the battery(s), and consumed by the lighting. In addition, it updates appropriate references and other sections to accurately reflect current industry practices in solar lighting systems.

ANSI C136.40-2014 may be purchased in electronic or hardcopy format for $55 on the NEMA website.

NEMA is the association of electrical equipment and medical imaging manufacturers, founded in 1926 and headquartered in Rosslyn, Virginia. Its 400-plus member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Total U.S. shipments for electroindustry products exceed $100 billion annually.