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Grid Code Compliance Services

Support grid code compliance with testing, certification and simulation services supporting over 60 global standards.
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Navigate evolving grid codes with confidence

As power generation shifts from centralized fossil fuel plants to decentralized renewable systems, grid codes are rapidly evolving worldwide.

Power producers and energy equipment manufacturers must understand complex requirements and demonstrate compliance across multiple markets.

UL Solutions supports power-generating units, equipment and systems with comprehensive grid code compliance services — including testing, inspection, certification and simulation — helping you meet requirements efficiently and confidently.

Key benefits of working with UL Solutions

Simplify complex compliance processes

Work with a single provider covering all grid code compliance activities.

Access global expertise

Leverage decades of experience in testing, inspection, certification and simulation.

 

Achieve global market access

Demonstrate compliance with more than 60 grid codes worldwide.

 

Reduce project complexity

Streamline multi-market requirements through a unified approach.

 

2026 - Grid Code Compliance
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Comprehensive grid code compliance services

UL Solutions provides grid code compliance (GCC) services for a wide range of power-generating units and power systems.

We support both energy equipment manufacturers and power plant developers through:

  • Testing
  • Inspection
  • Certification
  • Simulation

Our services help evaluate products for compliance with local and international grid requirements, supporting reliable integration into power systems. 

Our testing  capabilities include advanced hardware-in-the-loop (HIL)  for power plant controllers, combining real equipment with real-time simulation environments to support accurate and efficient validation under grid code requirements.

Trust by the numbers

200+

Renewable installations supported

9+ GW

Installed capacity

Solutions tailored to your role

For energy equipment manufacturers

Supported equipment

  • Photovoltaic inverters
  • Wind turbines
  • Energy storage power conversion systems
  • Bi-directional electric vehicle (EV) chargers
  • Combined heat and power generators
  • Mini-hydroelectric generators
  • Synchronous generators
  • Power plant controllers

Key benefits

  • Demonstrate compliance to more than 60 grid codes
  • Support certification of PGU portfolios
  • Improve market readiness across regions

For power plant developers

Renewable solar energy panels
Renewable solar energy panels

Supported equipment

  • Photovoltaic inverters
  • Wind turbines
  • Energy storage power conversion systems
  • Bi-directional electric vehicle (EV) chargers
  • Combined heat and power generators
  • Mini-hydroelectric generators
  • Synchronous generators
  • Power plant controllers

Key benefits

  • Demonstrate compliance to more than 60 grid codes
  • Support certification of PGU portfolios
  • Improve market readiness across regions

What’s included in our services

Testing, inspection and certification services

Simulation services for grid compliance validation
Engineering grid studies
System-level and component-level support
Global compliance expertise across multiple standards

Global testing and engineering capabilities

  • Testing facilities in Germany, Spain and the United States
  • Test benches for wind turbines up to 500 kW and MW scale
  • On-site testing at customer facilities

Why UL Solutions?

Global recognition - UL Solutions is a trusted name for testing and certification worldwide

Accredited expertise - ISO/IEC 17025 testing laboratory and ISO/IEC 17065 certification body.

Extensive global accreditations

  • DAkkS (Germany) and ENAC (Spain). For both accreditations, we have a flexible scope to give us more ability to adapt to new grid codes.
  • A2LA accreditation for testing and certification

Recognized authority - NRTL recognized by OSHA and more than 50 Recognized Test Sites.

Integrated solutions - Ability to bundle grid code compliance with IEC/UL standards. 

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Meet our experts

Miguel Martinez is a grid code compliance expert whose work focuses on testing and certification of power generation systems, supporting safer and more reliable integration of energy technologies into the grid. With a PhD in electronic physics and nearly two decades of experience in the field, he plays a key role in advancing conformity assessment methodologies and grid requirements worldwide.

Miguel Martinez

Miguel Martinez

Principal engineer, Grid Code Compliance
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Bring your projects into grid connection compliance

Connect with our team to simplify grid code compliance across global markets with UL Solutions testing, certification and simulation services.

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Download our resources

Frequently asked questions

Grid codes are technical regulations defining how the electrical grid must operate (e.g., voltage, power factor, fault response). They are intended to help ensure the safe and stable integration of renewable and decentralized energy systems with traditional power networks.

The upcoming RfG 2.0 is expected to update technical requirements to support grid stability with more renewables, including storage integration, bidirectional charging and grid-forming capabilities. UL Solutions closely monitors these updates.

Key challenges include complex regulations, multi-country requirements and project timelines impacting ROI. UL Solutions addresses these through gap analysis, training, grid studies, simulations and inspections. With experience across 200+ installations (~9 GW), we can help streamline testing time and manage costs.

UL Solutions stays up to date through active participation in regulatory bodies, industry partnerships and continuous research.

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