SunSpec Rapid Shutdown

WHAT IS IT

AN OPEN STANDARD FOR NEC 2017

RAPID SHUTDOWN COMMUNICATION

The safest, most effective way to ensure Rapid Shutdown (as part of NEC 2017) compliance is to utilize standardized, certified solutions. The SunSpec Alliance is the standards body that enables the global energy industry, and is the trusted source for certification of Rapid Shutdown-compliant solutions.

Get Sunspec Rapid Shutdown Certified

Only the “SunSpec Certified” mark warrants verification of a complete and successful implementation of the SunSpec Communication Signal for Rapid Shutdown Functional Specification.

A manufacturer’s or other 3rd party’s declaration of “SunSpec compliance” or “SunSpec compatibility”  is not equivalent to a SunSpec issued certificate.

BASED ON MATURE TECHNOLOGY

The lowest cost solution to a fundamental market requirement, SunSpec Rapid Shutdown reduces installation and interconnection costs with Plug-and-Play system components and reports system health every time the sun comes up or the system is re-activated.

INSTILLING CONSUMER CONFIDENCE

As an open standard, SunSpec Rapid Shutdown protects consumer differentiators with competitive pricing, multi-vendor choices, options and value availability. It ensures system service and upgrades with a choice of vendors and interoperable components. Moreover, it increases consumer safety and confidence in DER technology.

IMPROVING SYSTEM SAFETY

Provides a simple, robust, and reliable solution to reduce the voltage at module level to 1V per module to comply with NEC 2017 requirements.

TOOLS AND RESOURCES FOR SUNSPEC RAPID SHUTDOWN

DOWNLOADS

EDUCATION

WORK GROUP

Download SunSpec Rapid Shutdown Specification Package

Available the public at no cost, the SunSpec Rapid Shutdown Specification package is free to download. Submit the form below to access the package.

SunSpec Rapid Shutdown Education

SunSpec offers online education courses for DER industry professionals working with SunSpec Rapid Shutdown. Members of the SunSpec Alliance receive a 20% discount on all courses.

SUNSPEC RAPID SHUTDOWN WORK GROUP

The mission of the SunSpec Communication Signal for Rapid Shutdown (SunSpec RSD) Workgroup is to define a simple, open, multi-vendor, multi-device communication interoperability specification to support NEC 2017 and NEC 2020 690.12 rapid shutdown requirements. SunSpec RSD receivers can be applied in in solar arrays as single-module, multi-module, and string-level devices and SunSpec RSD transmitters can be applied adjacent to or embedded in inverters or power conversion devices.

Resources For Installers

The SunSpec Rapid Shutdown certification mark ensures a product’s compliance with NEC 2017 requirements for module-level rapid shutdown as well as interoperability with other SunSpec RSD certified devices in a PV system.

SUNSPEC RAPID SHUTDOWN NEWS & EVENTS

Four SunSpec Specifications Now in Countdown to APPROVAL

We're excited to announce that four SunSpec specifications have entered the final countdown of moving from TEST to APPROVED status. During this 45-day window for technical comments and IPR Review, which will begin on March 11, 2021 and conclude on April 20, 2021,...

JOIN THE INITIATIVE

Keep up to date with the SunSpec Rapid Shutdown Initiative and the SunSpec Alliance Newsletter by signing up here.