html{display:none} Utilities | Schweitzer Engineering Laboratories
Power Management


Prevent blackouts and function more efficiently than ever before.

Utilities hero

Learn about our U.S. mobile microgrid tour, and find a live demonstration near you.

The SEL powerMAX Power Management and Control System for utilities uses a remedial action scheme (RAS) in a control system capable of integrating large geographic regions of interconnected generation sources, transmission lines, and loads.

Every powerMAX RAS is as unique as the utility grid it protects.

We conduct system studies and modeling to understand your current situation and find the best possible way to achieve your desired outcome. We can also integrate a powerMAX RAS with your existing relays, meters, and communications systems to leverage existing hardware while reducing overall project costs.

Key Applications:

  • Monitoring, control, and integration of renewables and distributed energy resources (DERs)
  • Integrating large renewable sources, such as wind power stations and PV arrays, with transmission systems
  • Wide-area systems communications
  • Wide-area volt/VAR control
  • Synchrophasor monitoring and control
  • Fast decoupling solutions
  • Relay-speed operation across wide areas
  • Distributed computing and communications for smart transmission grid management

The Economy of Reliability and Efficiency

With the reliable control offered by SEL powerMAX systems, electric power providers and their customers reap economic rewards.

A powerMAX RAS allows bulk power grids to function closer to stability limits, operating transmission corridors at a higher capacity than ever before. In some cases, they can transmit over 50 percent more power across existing transmission lines.

The increase in efficiency allows you to meet rising demand without building costly new lines.

A Partner You Can Trust

SEL is recognized as North America’s most trusted relay supplier and one of the top relay manufacturers in the world—a position we’ve earned over decades of dedicated service to the electric power industry. Around the world, our power system engineers are ready to provide the solutions you need.

Automation Services

SEL also provides automation services for substations and distribution networks. Our automation solutions leverage the built-in capabilities of our protective relays and our Real-Time Automation Controller (RTAC) control libraries to provide scalable, modular automation systems.

SEL Automation Services More About SEL Distribution Automation

Quality and Security

All of our products are designed, tested, and manufactured in SEL-owned and -operated facilities in North America.

The SEL Engineering Services team follows rigorous engineering procedures for design, development, testing, and commissioning of electric power systems. We continually identify, monitor, and improve best practices to ensure your satisfaction.

We practice secure supply chain management, including verified chains of custody, responsible sourcing, and keeping quantities of critical parts in reserve. Our quality management system is certified to ISO 9001 Quality Management System requirements.

Products You Can Rely On

Our products are designed to withstand the world’s most challenging environments, exceeding all industry standards for temperature, shock, and electric stress. An optional conformal coating adds an extra level of protection against contaminants in extreme environments.

Every SEL product comes with a ten-year unconditional warranty—the best in the industry. If any product fails under warranty, we’ll repair or replace it for free.

SEL Solutions in Action


GSE featured

Republic of Georgia Enters New Era of Reliable Energy

See how SEL helped the country of Georgia stabilize its transmission grid with an emergency control system, ending decades of nationwide blackouts—and then implemented a remedial action scheme (RAS) that ensures reliable delivery of electric power and provides for future growth.

Questions? Contact Us!

An SEL representative will follow up with you directly. We’re happy to answer all your questions and help you find the best solution for your needs.

Contact Engineering Services


Unbeatable Support

When you choose SEL, you get more than products and services—you get a partnership. Our customer support teams are experts in power system products and applications, and they’re available for the entire life of your SEL solution.

Engineering Services project engineers are ready to assist you in various project stages from planning through final commissioning of the system. Afterward, you have access to technical support from SEL application engineers, at no charge, as long as SEL products remain in service.