Sunrun and SPAN Expand Partnership to Accelerate Distributed Edge Computing

Sunrun and SPAN will embed solar-powered AI compute nodes into new-home communities, giving residents backup power and payments with no upfront cost.

Rhea-AI Summary

Sunrun (RUN) and SPAN are expanding their partnership to deploy a behind-the-meter, distributed AI compute and home energy solution at residential gigawatt scale.

Sunrun will supply solar-plus-battery systems that power SPAN’s XFRA distributed data center nodes in new home communities across Texas and other markets. The combined offering aims to deliver low-cost, low-latency compute while maintaining reliable electricity for homes and preventing overload of local distribution infrastructure, enabling higher node deployment density.

Host customers will receive whole-home backup power, a smart electrical panel, and ongoing compensation for hosting XFRA nodes via a pre-paid lease, with no added home purchase cost.

Positive

• Residential AI compute rollout via Sunrun–SPAN partnership targeting gigawatt-scale deployment in new communities
• No-cost offer to builders and homeowners via pre-paid lease, potentially easing large-scale adoption
• Additional value streams for Sunrun from grid service enrollment of home batteries and compensation to host customers
• Improved infrastructure utilization by using home solar-plus-storage to avoid overloading local distribution networks

Negative

• None.

News Explained

The release adds a grid-service role: Sunrun says it will enroll host-home batteries in its programs, growing its distributed power plant fleet; the announcement describes planned enrollment, not completed deployment.

Key Figures

Deployment scale: Gigawatt scale

Deployment scale

Gigawatt scale

Residential distributed compute solution

Key Terms

behind-the-meter, liquid-cooled

2 terms

behind-the-meter technical

"complete, behind-the-meter distributed compute solution"

Equipment or systems located on a customer’s side of the electricity meter—such as rooftop solar panels, battery storage, electric vehicle chargers, or energy controls—that generate, store, or manage power for use on-site rather than being supplied through the utility’s grid. Investors care because behind-the-meter assets change how much power a customer buys, can create new revenue or savings streams, affect demand patterns, and shift regulatory or business models in the energy market, much like a homeowner installing their own water tank reduces municipal supply needs.

liquid-cooled technical

"utilizes liquid-cooled NVIDIA GPUs"

A liquid-cooled system uses a circulating fluid (like water or a special coolant) to carry heat away from electronic components or machinery instead of relying on air. For investors, this signals equipment designed for higher performance, tighter temperature control and often greater reliability, but also typically higher upfront cost and potential maintenance needs — much like a car’s radiator versus a basic fan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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The expanded partnership delivers a complete, behind-the-meter distributed compute solution for residential deployment at gigawatt scale, built into new home communities from the ground up

SAN FRANCISCO, Sept. 23, 2026 (GLOBE NEWSWIRE) -- Sunrun (Nasdaq: RUN), America’s largest provider of home battery storage, solar, and home-to-grid power plants, and SPAN, the leader in intelligent home energy management, today announced a partnership expansion to accelerate AI compute capacity by combining home energy systems with distributed compute infrastructure. Under the partnership, Sunrun will provide home solar and battery storage to help power SPAN's XFRA distributed data center solution, accelerating deployed compute capacity.

The partnership combines Sunrun's home energy products, financing, and installation and service network with SPAN's XFRA distributed compute node and orchestration capabilities to deliver a scalable, low-cost, low-latency compute solution that can be deployed faster than traditional data centers.

"This partnership expansion with SPAN puts customers first, ensuring that they directly benefit in multiple ways from their participation in this powerful distributed AI solution," said Sunrun CEO Mary Powell. “By pairing home energy generation and storage with XFRA compute nodes, we are unlocking new economic value for our customers and for Sunrun, while also solving certain speed-to-power constraints that would otherwise limit AI deployment.”

Under the partnership, SPAN and Sunrun will partner with leading homebuilders and begin deployments in new construction residential communities in Texas and other specified markets, enabling distributed AI infrastructure to be built into communities from the ground up. Sunrun's battery-plus-solar systems will maintain reliable electricity for both the homes and the XFRA compute nodes, while preventing the overloading of local distribution infrastructure—allowing SPAN to maximize node deployment.

"Teaming up with Sunrun solves one of the main bottlenecks for distributed AI compute: power generation and transmission constraints," said Arch Rao, founder and CEO of SPAN. "We can now drastically increase our penetration of XFRA compute nodes by pairing them with Sunrun energy systems to deliver cost-effective AI compute capacity at unprecedented speed while also reducing compute cost for certain AI applications."

At no cost to the builder or the homeowner, and without increasing the purchase price of the home, each host customer will receive a smart electrical panel paired with a multi-battery storage and solar system through a pre-paid lease. Customers will also receive whole-home backup power and ongoing compensation for hosting the XFRA compute node.

SPAN's XFRA platform utilizes liquid-cooled NVIDIA GPUs that are managed through SPAN's XFRA Secure Orchestration Layer, which intelligently schedules AI workloads based on latency requirements and real-time energy availability at each home.

In addition to providing capacity for the compute nodes and local power infrastructure, Sunrun will enroll the home batteries in its grid service programs, growing Sunrun’s market-leading distributed power plant fleet.

Together, Sunrun and SPAN represent the only end-to-end platform for residential AI compute, combining the nation's largest residential energy platform with XFRA's distributed compute network to bring distributed compute capacity online at the speed and scale the AI buildout demands.

About Sunrun
Sunrun Inc. (Nasdaq: RUN) is America’s largest provider of home battery storage, solar, and home-to-grid power plants. As the pioneer of home energy systems offered through a no-upfront-cost subscription model, Sunrun empowers customers nationwide with greater energy control, security, and independence. Sunrun supports the grid by providing on-demand dispatchable power that helps prevent blackouts and lowers energy costs. Learn more at www.sunrun.com.

About SPAN
SPAN is on a mission to enable a more efficient and affordable energy future. The company began by reinventing the electrical panel and continues to transform grid-edge energy infrastructure through combined hardware and software innovation. The SPAN product portfolio includes five smart electrical panel models, SPAN Edge (the intelligent service point), XFRA (the distributed data center), EV charging solutions, and the SPAN Home App. SPAN delivers energy management and advanced power controls that unlock greater grid utilization, benefiting homeowners, builders, utilities, and data center developers with lower costs and faster speed to power. For more information, go to www.span.io.

Sunrun Media Contact
Wyatt Semanek
Sr. Director, Corporate Communications
press@sunrun.com

SPAN Media Contact
press@span.io

Investor & Analyst Contact
Patrick Jobin
SVP, Deputy CFO & Investor Relations Officer
investors@sunrun.com

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How will builders and homeowners be charged for the Sunrun–SPAN solution?

Each host customer will receive a smart electrical panel paired with a multi-battery storage and solar system through a pre-paid lease. The announcement states there is no cost to the builder or the homeowner and the solution does not increase the home’s purchase price.

What benefits do homeowners receive for hosting SPAN’s XFRA compute nodes?

Host customers receive whole-home backup power from the solar-plus-battery system and ongoing compensation for hosting the XFRA compute node in their home.

What technology underpins SPAN’s XFRA distributed compute platform?

SPAN’s XFRA platform uses liquid-cooled NVIDIA GPUs managed by the XFRA Secure Orchestration Layer, which schedules AI workloads based on latency requirements and real-time energy availability at each home.

How does this partnership affect Sunrun’s grid service programs?

Sunrun will enroll the participating home batteries in its grid service programs, which the company says will grow its market-leading distributed power plant fleet.