Service

Power Utilities Testing and Certification

Testing and certification services for power utilities to demonstrate that electrical equipment meets safety, performance, and compliance requirements.
Solar panels with electricity pylon and wind turbine Clean power energy concept

Power utilities testing and certification

Electric utilities rely on UL Solutions to help them source and assess conformant products that meet utility‑specific requirements for safety, performance, interoperability and security, from grid‑connected generation to metering and distribution. Our experts test, evaluate) and certify utility‑owned and interconnected products and can tailor programs to your specifications when standard requirements don’t fully reflect your use case.

Utility product testing across the grid

We evaluate utility product categories spanning smart meters, inverters, PV and wind technologies, large‑format batteries and energy storage systems, EV charging systems, transformers and switchgear—helping you validate performance and safety across the asset lifecycle. Explore related services for power distribution equipment and distributed energy resource (DER) systems.

Utility equipment certification and verification

Sunset behind electrical power lines and buildings in Chennai City, India.
Sunset behind electrical power lines and buildings in Chennai City, India.

Utility product testing across the grid

We evaluate utility product categories spanning smart meters, inverters, PV and wind technologies, large‑format batteries and energy storage systems, EV charging systems, transformers and switchgear—helping you validate performance and safety across the asset lifecycle. Explore related services for power distribution equipment and distributed energy resource (DER) systems.

How we meet utility needs

Single‑source testing, verification and compliance 

Work with a single global provider to identify market requirements, test for safety and performance, verify interoperability and assess conformance to utility or regulator specifications to help you streamline complex compliance processes.

Global expertise and market access 

Tap a worldwide network of accredited laboratories and technical teams that understand local, national and regional requirements, including knowledge of global marks and standards relevant to power distribution and grid interconnection.

Electrical equipment testing services for energy infrastructure

Medium‑voltage distribution equipment

From metal‑clad/gas‑insulated switchgear to unit substations, arc‑mitigation equipment, grounding devices and transfer switches, we deliver third‑party testing and certification to support code‑compliant installations and insurance needs.

Meter evaluations and certification 

Our smart‑meter evaluations cover electronic measurement, wireless/remote reporting and appliance controls, supported by accreditations with bodies such as IEC, IAS, NMI, BREB and SAC, and testing to UL 2735, IEC 62052‑31 and ANSI C12 series standards.

Field evaluations for installed equipment 

When equipment is modified or lacks certification, we perform on‑site field evaluations to applicable standards, supporting AHJ approval. Our ISO/IEC 17020‑accredited program (IAS FEB‑107) covers diverse equipment including ESS, industrial control panels and MV/HV power distribution equipment.

Smart grid compliance testing and grid code certification

Grid code compliance for PGUs and PGSs

We provide testing, inspection, certification and simulation for power‑generating units (PGUs) such as inverters, power conversion systems. As well as power‑generating systems (PGSs) such as PV plants and wind farms, supporting more than 60 grid codes worldwide. For full grid code simulation, certification and PGU/PGS compliance, see our dedicated Grid Code Compliance Services.

Advanced inverters: UL 1741 SA and Rule 21

Interoperability: IEEE 2030.5 (SEP 2.0)

Demand response (OpenADR / CTA‑2045 / EcoPort)

solar panels and electricity pylon
solar panels and electricity pylon

Grid code compliance for PGUs and PGSs

We provide testing, inspection, certification and simulation for power‑generating units (PGUs) such as inverters, power conversion systems. As well as power‑generating systems (PGSs) such as PV plants and wind farms, supporting more than 60 grid codes worldwide. For full grid code simulation, certification and PGU/PGS compliance, see our dedicated Grid Code Compliance Services.

Standards and programs we assess

  • ANSI C12.x for meters; California Rule 21; IEEE 2030.5

    Representative programs include ANSI C12.1/C12.20 for accuracy/performance of meters, Rule 21 for advanced inverter functionality, and IEEE 2030.5/SEP 2.0 for device interoperability, plus utility‑customized conformance programs where needed.

Proof of impact

200+ renewable installations; >9 GW supported

Our grid code compliance team has supported more than 200 renewable installations, contributing to over 9 GW of added installed capacity.

>100 GW supported with grid forecasting

We provide renewable generation forecasting services covering more than 100 GW of wind and solar capacity worldwide to support reliable, economical grid operations.

Work with UL Solutions

Move faster with a single partner for utility equipment certification, smart grid compliance testing and electrical utility compliance testing. Engage our team to define requirements, streamline test plans and document compliance—then maintain visibility using Product iQ® for certification status across your supply chain.

Get connected with our team

Thanks for your interest in our products and services. Let's collect some information so we can connect you with the right person.
Thank you!

One of our team members will respond to your request as soon as possible.

Related services

A Close Up Of A Smart Meter

Meter Evaluations and Certification

New and complex meter technologies can pose significant risks to your business. We’ll help you overcome business risks — one challenge at a time.

A large battery in a store room

Industrial Battery and Energy Storage Services

Testing and certification services for battery or energy storage systems used in electric vehicles, energy storage and distribution systems, and other large format applications.
Wind turbine

Wind Energy Technical Advisory Services

Providing independent technical advisory, testing, inspection, certification and software to the wind energy industry.

Electrical new high voltage cables been installed in underground Trenches.

Medium- and High-Voltage Cable Systems Testing

UL Solutions provides testing, inspection and certification (TIC) services for medium- and high-voltage cable systems, helping companies determine compliance with regulatory requirements.
Electric car charging, illustration.

Electric Vehicle (EV) Charging Infrastructure Services

Leading the charge with testing and certification for electric vehicle infrastructure.

Concept of energy storage system. Renewable energy - photovoltaics, wind turbines and Li-ion battery container in morning fresh nature. 3d rendering.

Energy Storage System Testing and Certification

Offering solid solutions to address unique safety considerations for system integrators and original equipment manufacturers (OEMs).
woman changing light bulb to energy saving bulb

Energy Efficiency Testing

Rely on our services and expertise to navigate an ever-evolving regulatory landscape and gain confidence that your products meet the relevant energy efficiency standards across global markets.
Various insulation materials that are used in electrical systems.

Electrical Insulation Systems Testing and Certification

Our comprehensive services can help verify that your insulation materials will perform safely in a shared environment — a critical requirement of any complex electrical system.

A picture of a high-voltage electrical system.

High-Voltage Electrical Insulation Systems Testing and Certification

Specifically designed to address the performance of high-voltage (HV) form-wound rotating machinery and HV power and distribution transformers.

Solar panels with electricity pylon and wind turbine Clean power energy concept

Grid Code Compliance Services

Support grid code compliance with testing, certification and simulation services supporting over 60 global standards.
Young attractive nurse working on a tablet computer. Nice shallow depth of field with lots of copy space.Please click on an

Medical Cybersecurity Assurance Program (CAP)

Medical CAP offers a comprehensive suite of advisory, testing and certification services to help companies manage cybersecurity risks and demonstrate a strong security posture to the marketplace.
An EMC laboratory room that is used to test radio equipment.

Wireless Device EMC Testing and Certification

Global network of EMC laboratories with state-of-the-art emission and immunity testing technologies to help you meet market requirements.
Homepage of UL Verify

UL Verify

We verify that the marketing claims made by a brand about their products, processes, systems or facilities are credible — helping buyers make smarter, more informed purchasing decisions.

Technical training

Knowledge Solutions, Industry and Product Training

Offering a competitive edge that drives tangible results to empower people, protect lives, and drive business success.

Product iQ displayed on cellphone

Product Sourcing and Certifications Database

Quickly access UL certification information with the powerful search engine Product iQ®.

Related resources

myUL® Client Portal

Register for our client portal today to access all your information in one convenient place.

Energy and Industrial Outlook Newsletter

Start receiving the Energy and Industrial Outlook newsletter and stay ahead of the curve.

Data Acceptance Program (DAP) Tools

Technical guidance documents and other DAP requirements that are available for DAP laboratory use

Solutions

Logistics and transportation of Container Cargo ship and Cargo plane with working crane bridge in shipyard at sunrise, logistic import export and transport industry background

Market Access

From regulatory expertise to smart compliance tools, UL Solutions can help you bring products to global markets.
Offshore drilling platform just off shore in the Gulf of Mexico used for domestic energy production. Ample copy space in the vibrant blue sky if needed. Concepts could include energy production, environmental impact, others.

Hazardous Locations

Our advisory, auditing, testing and certification verification and training services can help you get the HazLoc compliance credentials you need to compete in the complex global supply chain.
Business, Los Angeles, USA

Advisory

Leverage our expertise, knowledge and resources to identify new opportunities.

Frequently asked questions

We support smart meters, inverters, PV and wind equipment, large‑format batteries and energy storage systems, EV charging systems, transformers and switchgear, plus interoperability and performance programs tied to grid interconnection.

UL Solutions certifies at both the power‑generating unit (PGU) level (e.g., inverters, power converters) and power‑generating systems (PGS) level (e.g., PV plants, wind farms), using testing and/or simulation against local and international grid codes.

Yes, our scope includes IEEE 2030.5 (SEP 2.0) verification and advisory services to help products communicate correctly with utility systems and meet smart inverter/DER program expectations.

Yes, we test, assess and certify advanced inverters using UL 1741 SA, applied with Rule 21 and other SRDs, so utility‑interconnected DG equipment can provide grid‑support functions under abnormal conditions.

Our Field Evaluation Services program is ISO/IEC 17020‑accredited (IAS FEB‑107) and provides on‑site assessment to appropriate standards and may support AHJ approval.

Use Product iQ® to search UL certifications, access guide information and identify alternatives during sourcing and specification.

Yes, we offer renewables forecasting and grid management research supporting >100 GW of wind/solar capacity to help planners and operators manage variability and reliability.