SunSpec Specifications and Information models

SunSpec publishes free, open interoperability specifications and information models that software developers, hardware manufacturers, and integrators use to achieve plug-and-play interoperability between Distributed Energy Resource (DER) components and smart grid applications. All SunSpec specifications are free to download and use. SunSpec also supports international standard communication protocols that adhere to open principles.

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Available Specifications

Specification packets are listed by date, most recent first.

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,...

SunSpec Communication Signal for Rapid Shutdown Whitepaper

SAN JOSE, Calif., February 9th, 2021-- In 2015, 30 members of the SunSpec Alliance formed a technical working group to address the industry-wide need for a standardized data communication solution for PV module rapid shutdown. The mission of the SunSpec Communication...

New 700 Series Model Definitions for IEEE 1547 Near Approval

SunSpec Modbus is an open standard that enables interoperability amongst DER system components. Referenced in IEEE 1547-2018, the SunSpec Modbus 701-712 Series DER Information Models are just months away from being promoted from TEST status to APPROVED status, thus...

SunSpec Information Model Reference

Describes SunSpec Modbus data points and information models for all types of DER devices including inverters, batteries, meters, and trackers. Published in Microsoft Excel format.

SunSpec Information Model Specification

Provides an overview of SunSpec information models associated with the physical devices comprising a photovoltaic system. This document provides communication interface developers with detailed information needed to define SunSpec-compliant device interfaces....

SunSpec Device Web Service API Specification

TEST status.  This specification describes a Representational State Transfer (RESTful) interface, compatible with HTTPS, to read and write device data that conforms to the SunSpec Device Information Models. It enables software developers to implement both the server...

Orange Button Taxonomy Guide

Revision: 1.0 Date: May 1, 2018The goal of the Orange Button Taxonomy Guide is to provide sufficient information for document and data preparers, intermediaries and data users to work with the Orange Button Taxonomy Download...

Common Smart Inverter Profile (CSIP)

Revision: 2.1 Date: March 16, 2018 Describes configuration requirements for an IEEE 2030.5 interface that meets CA Rule 21 Phase 2 requirements.

SunSpec Modbus Vendor Extensions

The SunSpec Modbus interface allows for vendor defined functionality. The following Model IDs have been reserved by the indicated manufacturer to be used for vendor extensions: Starting ID Ending ID Vendor Description 64001 64009 Veris 64001: Veris status and...