On November 17, 2022, the Federal Energy Regulatory Commission (FERC or the "Commission") issued three orders (available here, here and here) with the objective of updating North
The roadmap raises open questions around how to enable grid-forming systems of any size. Like traditional generation and devices, inverters will need to respond to faults, synchronize power flow, and control
The Essential Grid Operations from Solar (EOS) project is a national laboratory-led research and industry engagement effort that aims to expedite the development and adoption of reliability
The braking energy harvested by a railway vehicle can be restored to the utility grid with a power recuperating system. A grid connected voltage source inverter (VSI) is commonly used as a
NREL leads and supports multiple efforts to develop cybersecurity standards, recommendations, and best practices for distributed energy resources (DERs) and inverter-based resources (IBRs). Through participation in broad
A newly released standard creates nationally applicable guidance for DER manufacturers on how grid support functions in their products will be tested. This paves the way for U.S. states to adopt more modern
Chapter VIII Key Takeaways. Interconnection standards and guidance documents, such as the suite of Institute of Electrical and Electronics Engineers (IEEE) 1547 TM standards, play a
The standards require distributed energy resources to provide specific grid supportive functionalities. These capabilities can then help increase the amount of DER that can be accommodated on the grid, increase power
The Modular Energy System Architecture (MESA) Standards Alliance is an industry association of electric utilities and technology suppliers. MESA''s mission is to accelerate the interoperability
DER standards typically outline the technical specifications for equipment such as inverters, energy storage systems, and generation units (e.g., solar PV, and wind turbines). They ensure
To ease the integration of distributed energy resources (DER), like solar energy and energy storage, into the electric power system, in April 2018, the Institute of Electrical and Electronics Engineers (IEEE) released the
Current Recommendations and Standards for Energy Storage Safety . Between 2011 and 2013, several major grid energy storage installations experienced fires (figure 1). As a result, leading
SDG&E''s Energy Storage . Implementation . DOE – Energy Advisory Committee. Lack of utility construction standards – SDG&E is developing these for our service territory – e.g. requiring a
In recent years, some U.S. states have begun to require that inverters with these functions (“smart inverters”) be used when connecting DERs to the grid (“interconnection”). Smart inverters can “see” information about the grid at their location (i.e. voltage and frequency) and can respond autonomously in ways that help maintain grid stability.
The capabilities of modern equipment connecting to the grid had advanced substantially, especially for smart inverters which were adapting to higher penetration around the world, and IEEE 1547-2018 modernized interconnection requirements to reflect the need for these capabilities.
As cited in the DOE OE ES Program Plan, “Industry requires specifications of standards for characterizing the performance of energy storage under grid conditions and for modeling behavior. Discussions with industry professionals indicate a significant need for standards ” [1, p. 30].
Long-term priorities focus on building inverter-based systems of increasingly larger size, from rural villages and university campuses to the scale of U.S. interconnections. The present power system has historically been dominated by generators with large rotational inertia.
Maryland updated its interconnection rules (Code of Maryland Regulations 20.50.09) this year with a requirement that DER systems must utilize inverters certified to IEEE 1547-2018 in order to be approved for interconnection to the grid starting January 1, 2022.
PV and storage inverters and some other products are listed to the safety standard UL 1741, which requires grid interactive equipment to pass the tests in IEEE 1547.1. UL is preparing to publish updates to this standard in early August to reference the new tests in the 2020 version.
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