The SunSpec Alliance is pleased to announce the availability of the California Rule 21 Communication Conformance Test Procedures and the Common Smart Inverter Profile (CSIP) 2.0. The California Rule 21 Communication Conformance Test Procedures procedures are specified in CA Rule 21 and are related to the IEEE 2030.5 communication standard.
The Common Smart Inverter Profile (CSIP) 2.0 document describes application-level protocol implementation guidelines that were developed by Investor Owned Utilities (IOU’s) to address new California Rule 21 tariff requirements. These requirements state that the guidelines must address communication requirements and implementation processes to ensure consistent interoperability of the generating facilities with all California IOU’s under the jurisdiction of the California Public Utilities Commission. The interconnection handbooks of the IOU’s will reference this document.
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About the SunSpec Common Smart Inverter Profile (CSIP) Conformance Test Procedures
The SunSpec Common Smart Inverter Profile (CSIP) Conformance Test Procedures are used to verify the functionality specified in the Common Smart Inverter Profile (CSIP), a specification developed by the California Smart Inverter Working Group. CSIP addresses the communications path between a utility server and an Aggregator and/or a DER.
Final publication of the test procedures document is called out in the California Rule 21 proceedings as an element triggering the requirement for data communication between Investor Owned Utilities (IOU) and Distributed Energy Resources (DERs) installed after the effective date.
About IEEE 2030.5 and CSIP 2.0
CSIP specifies that IEEE 2030.5 is the default protocol that shall be used for communication with a utility server. IEEE 2030.5 is a standard for communications between smart grid enabled components. The standard is built using current networking technologies allowing a secure and interoperable framework to be used for information exchange.
The CSIP document specifies a usage model for communications with systems containing smart inverters using the IEEE 2030.5 standard. The IEEE 2030.5 standard supports functionality for a broad range of smart devices. The CSIP document references IEEE 2030.5 functionality in three main ways:
- Identify required subset of IEEE 2030.5 functionality that must be supported.
- Identify specific options that must be chosen within the required functionality to promote interoperability.
- Identify any specific capacity requirements associated with the required functionality that may be different than the defaults specified in IEEE 2030.5.
The objective of these test procedures is to verify the implementation being tested is compliant with the IEEE 2030.5 functionality and options as specified in the CSIP document.
About the CA Rule 21 implementation plan
More information about CA Rule 21 can be found here. SunSpec members can also receive periodic updates on this topic as well as software and other materials required for preparing for implementation. Click here for information about how to join the SunSpec Alliance or, if you are already a member, contact SunSpec membership services for details.