UL Solutions publishes new solar and storage cyber security requirements

April 19, 2023
Facebook
Twitter
LinkedIn
Reddit
Email
UL Solutions and the National Renewable Energy Laboratory announced testable requirements for energy storage and energy generation technologies on the distribution grid. Image: UL Solutions

Testing and certifications company UL Solutions has published a new set of cyber security certification requirements for solar, wind and storage assets connected to the distribution grid, as well as other inverter-based resources (IBR).

The UL 2941 Outline of Investigation for Cybersecurity of Distributed Energy and Inverter-Based Resources certification was developed in collaboration with the National Renewable Energy Laboratory (NREL) and came after NREL and its parent, the Department of Energy (DOE), issued a second round of applications for new renewables cyber security solutions in January.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The requirements focus on cyber security for generation resources connected to the distribution grid – which connects to end users and consumers – and power systems with a high penetration rate of IBRs. Inverters are one of the components of a PV or other renewable energy system most at risk from cyber attack. PV Tech Premium featured an article last October which analysed the threat that cybersecurity breaches pose to solar PV systems.

UL Solutions and NREL have said that they will now use the new requirements to test IBRs, and products will need to be compliant with UL 2941 to be eligible for UL certification.

As the world’s grids become increasingly electrified, diverse and ‘smart’, cyber security is a growing concern. To optimise plant performance, PV developers and operators are increasingly turning to software, data monitoring and AI to yield the most from their assets. These create more opportunities for cyber attack.

Kenneth Boyce, senior director for principal engineering in the industrial group at UL Solutions said: “Performance-based security is key to a reliable and resilient electrical grid infrastructure. With UL 2941, manufacturers and vendors of distributed energy resource (DER) and IBR devices can utilise these new cyber security certification requirements to provide a unified approach that can be used as a reference for performing the testing and certification of DERs before being deployed and while in the field.”

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

Read Next

November 14, 2025
Spain-based developer Acciona Energia will add a gigawatt-hour-scale battery energy storage system (BESS) at its 238MWp Malgarida solar PV plant in Chile.
November 14, 2025
Lightsource bp has started construction on its 330MWp Valle 3 and 4 project in Wamba, Valladolid, in the Castilla y Leon region of Spain. 
November 14, 2025
Developer rPlus Energies has acquired two solar and storage projects with the total capacity of 900MW in Ada County, Idaho.
November 14, 2025
International solar manufacturer Canadian Solar has posted stable financials in Q3 2025, as its solar module and battery energy storage system (BESS) sales shift.
November 14, 2025
NSW has removed regulatory barriers that previously prevented owners of heritage-listed properties from installing rooftop solar.
November 13, 2025
QIC and EDP Renewables Australia have signed an agreement to develop a 400MWac solar-plus-storage project in Toowoomba, Queensland.

Upcoming Events

Solar Media Events
November 25, 2025
Warsaw, Poland
Solar Media Events
December 2, 2025
Málaga, Spain
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Lisbon, Portugal
Solar Media Events
June 16, 2026
Napa, USA