Instantaneous power
when it’s needed most

Stem’s customer-sited energy storage network provides leading utilities and grid operators with a fast-acting virtual power plant when—and where—it’s needed most.

  • Delivers capacity where and when needed
  • Provides ramping services to solve renewable variability
  • Defers costly transmission and distribution asset upgrades
  • Provides grid-edge visibility
  • Brings value-added services to customers

Stem in action

Stem’s energy storage network actively supports grid services today.

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  • Southern California Edison (SCE)

    Capacity: 85 MW / 340 MWh
    Region: West Los Angeles Basin
    Services: Dispatchable capacity to replace decommissioned nuclear plants and bill savings for customers

  • Consolidated Edison (ConEd)

    Capacity: 1 MW / 3.4 MWh
    Region: Brooklyn and Queens
    Services: Fast-acting, reliable demand response to substitute traditional centralized distribution upgrades and bill savings for customers

  • Hawaiian Electric Company (HECO)

    Capacity: 1 MW / 2 MWh
    Region: O’ahu
    Services: Capacity firming, renewables integration, visibility at the grid edge

  • Austin Energy

    Capacity: 1 MW
    Region: East Austin
    Services: Renewables integration and bill savings for customers

  • Demand Response Auction Mechanism (DRAM)

    Capacity: 2.4 MW
    Region: SCE, PG&E and SDG&E territories
    Services: Bundling and bidding capacity into the wholesale market, revenue generation for customers

The grid’s most flexible and advanced asset

Stem’s optimized network of energy storage devices and advanced metering gives grid operators real-time visibility at the grid edge and a fast-acting, immediately dispatchable capacity resource that can be applied at precise times, locations and amounts.

Increased resilience
and quality

  • Stem’s network solves system and local level capacity challenges by combining intelligent controls, monitoring and energy storage
  • Solves ramping issues presented by high penetrations of renewables or in highly congested regions

Visibility and control
at the grid edge

  • Using Stem’s advanced metering and monitoring, grid operators gain real-time and granular visibility at the grid edge
  • Stem enables visibility into and control of Stem’s fleet of energy storage assets
  • Stem’s software also provides grid edge intelligence, enabling smarter system planning and offering insights into customer behavior

Build trust and engagement
with customers

  • Energy consumers are increasingly demanding value-added services from their energy providers
  • Give customers a way to participate in energy markets, support the grid, and serve local communities
  • 8 out of 10 Stem customers agree: “I have a more positive attitude towards my utility provider now that I know it is helping to fund sustainable technologies like Stem’s.”

Learn more about
customer-sited energy storage

Stem’s network of distributed energy storage systems creates virtual power plants
that open up a suite of powerful grid applications.