MESA Standards

The Modular Energy Storage Architecture (MESA) Standards Alliance is an industry association comprised of electric utilities and technology suppliers whose mission is to accelerate the growth of energy storage through the development of open and non-proprietary communication specifications for energy storage systems. 

Join us in transforming the energy storage market.

MESA is developing two specifications


Provides a standard framework for utility-scale energy storage system (ESS) data exchanges. The draft specification addresses ESS configuration management, ESS operational states, and the applicable ESS functions from the IEEE 1815 (DNP3) profile for advanced DER functions.

MESA-Device Specifications/SunSpec Energy Storage Model

Addresses how energy storage components within an energy storage system communicate with each other and other operational components. MESA-Device specifications are built on the Modbus protocol.

About MESA Standards

Utility grid technologies are undergoing a rapid evolution in response to changes in how power is being deployed on the electricity grid today.

Changes over the last decade include the widespread integration of renewables, the addition of myriad types of energy storage, and the two-way flow of energy between distributed energy resources (DER).

The adoption of open standards simplifies the integration of these technologies and increases the pace of their deployment in grid integration. All MESA specifications are free to download.

MESA members include a growing list of leading utilities and energy storage solution providers who work together to build interoperability into their respective products and ensure they are architected for grid system integration.

As a MESA member, you can participage in MESA working groups to guide the development of MESA specifications, learn how to incorporate MESA specifications into your products and/or control systems, and share knowledge with your peers.

Open Standards for Energy Storage

MESA specifications support safe, affordable, and scalable energy storage.


Benefits for Utilities

  • Reduce costs of technology deployment
  • Reduce risk by enabling supplier flexibility
  • Simplify long-term maintenance and system upgrades
  • Efficiently scale energy storage deployments on utility networks
  • Reduce training costs and improve safety for field staff

Benefits for Industry

  • Reduce engineering and agency compliance testing costs
  • Provide interoperable products to your customer
  • Increase the array of available partners for projects
  • Focus resources on making your product better rather than on system integration
  • Streamline deployments and meet your customers’ timelines

Years Established

MESA Members

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