SPAN, Nvidia, and PulteGroup just announced XFRA, the first distributed AI compute network designed to live inside residential homes. gridhost.io is the independent hub for the homeowners, builders, installers, and investors who will host it. Built by Raynora, the 30-state residential energy operator behind AURA℠.
For the first time, the world's largest AI infrastructure companies are buying compute capacity from the residential grid itself. SPAN's XFRA puts small, liquid-cooled GPU nodes outside homes, connected through the smart panel that already controls your house. Hyperscalers buy the compute. Homeowners get their electricity and internet bills paid. The 100-home pilot is live in Q3 of this year.
The average American home uses about 40% of its electrical capacity. XFRA's smart panel taps the unused 60% and makes it productive without ever compromising household use. No new substations. No new transformers. No three-year permitting cycle.
The pilot is moving through a single homebuilder and a single build-to-rent operator this year, with broader US rollout starting early 2027. Retrofits open after that, prioritizing homes that already have a SPAN smart panel installed.
Every home that has solar, a SPAN panel, and a battery installed before retrofits open in 2027 is a candidate node site on day one. Raynora bundles all three into a single financed install through AURA℠. The 30% federal credit funds most of it.
SPAN's data from millions of installed smart panels shows the typical 200-amp American home uses 80 amps at concurrent peak, holds 40 for safety, and leaves 80 amps of headroom that never gets touched. That's the slice XFRA puts to work, without ever interrupting how the household uses power.
of an average home's electrical service capacity sits unused around the clock.
XFRA pays the homeowner to put that 80A to work.
XFRA isn't a product you buy. It's an infrastructure layer being built right now, and the people who get inside it early will define the next decade of distributed compute. Pick the lane that fits.
Start hereFind out if your home is a candidate. Estimate what XFRA could pay you in subsidized energy and internet bills. Reserve your place on the retrofit waitlist before everyone else does. This is the primary path on gridhost.io and the only one you can act on today.
Check my home's eligibility →Four answers tell us most of what we need to know. We score your home in real time against the public XFRA spec and the SPAN-installed-base retrofit profile, then put you on the priority list when SPAN opens the retrofit channel.
XFRA pays homeowners through subsidized energy and internet bills, not a direct check. The economic value depends on local electricity rates, your internet plan, and how much of your capacity is reclaimable. Drag the inputs to see a rough range.
Modeling estimate based on the XFRA white paper (April 2026), SPAN-installed-base data, and publicly available utility rates. SPAN has not published final homeowner economics. Actual figures will vary by site, utility, and final SPAN host agreement.
Same hardware, three different commitments. The SPAN white paper says retrofits prioritize existing SPAN customers. These are the three ways to put your home in that pool before the channel opens.
Reserve your place in line. Receive your eligibility score, market updates, and first notice when XFRA opens in your state.
A custom XFRA candidacy report on your home plus a personal consultation. Built on the same AURA℠ infrastructure that's been pre-positioning homes since 2024.
Solar, SPAN smart panel, and whole-home battery, installed by Raynora and financed through AURA℠. The 30% federal credit funds about a third of the system.
Raynora installs solar, SPAN smart panels, and home batteries across all 30 states we serve, with AURA℠ tax-equity pass-through layered on top in 18 of them. The SPAN white paper identifies existing SPAN customers as the priority pool when retrofits open in 2027. We're positioning homes for that window. Final eligibility is SPAN's call, not ours.
AURA℠ tax-equity pass-through is fully active. Solar, SPAN smart panel, and battery can be installed today, and the 30% federal credit returns to you as cashback or upfront discount.
AURA℠ enrollment is open. Reserve your install now to lock in the 30% federal credit the moment activation goes live in your state. The hardware install (solar, SPAN, battery) can proceed under our standard $0-down lease today.
AURA℠ isn't yet active in these states, but Raynora installs solar, SPAN smart panel, and battery under our standard $0-down lease or direct-ownership paths. Same install, same 25-year warranty.
Raynora is a 30-state residential energy operator. We sell, design, install, and finance solar and battery systems through AURA℠, a 25-year prepaid lease-to-own structure that captures the 30% federal credit through our commercial lessor and passes the full value back to homeowners as a cashback check or upfront discount.
That sentence describes, almost exactly, the kind of capital structure XFRA needs to scale to one gigawatt. Tax equity, pass-through credits, residential interconnection, multi-state installer logistics, lead acquisition at scale. We've solved the hard version of this for solar. XFRA is the same problem applied to compute hardware.
gridhost.io is independent. We are not affiliated with SPAN, Nvidia, or PulteGroup. We are building the connective layer the XFRA ecosystem doesn't have yet, while routing every homeowner who wants to be ready to the one action that actually works today.
Quick answers on XFRA, SPAN, and what pre-positioning actually involves. For deeper detail on AURA℠ tax-equity, financing, or how Raynora installs across 30 states, the full guide lives at raynora.com/faqs.
XFRA is the residential distributed AI compute network announced in April 2026 by SPAN, Nvidia, and PulteGroup. It places Nvidia RTX Pro 6000 Blackwell GPU compute nodes inside individual homes, paired with a SPAN smart panel, whole-home battery, and solar. Homeowners get subsidized energy and internet bills, hyperscalers get distributed AI inference capacity, and the grid gains a new layer of demand-responsive load.
XFRA is a partnership between three companies. SPAN makes the smart electrical panel that orchestrates whole-home energy. Nvidia supplies the RTX Pro 6000 Blackwell GPUs that run the AI workloads. PulteGroup, one of the largest homebuilders in the United States, is the launch new-construction channel. The official partnership site is xfra.ai.
The 100-home residential pilot is scheduled for Q3 2026 with PulteGroup new-construction homes and one build-to-rent operator. SPAN has not yet publicly announced the specific pilot markets. Broader U.S. deployment, including the retrofit channel for existing SPAN-installed homes, is scheduled to begin in 2027 per the official XFRA white paper.
The SPAN smart panel replaces a standard home electrical service panel with a connected, circuit-by-circuit controllable system. It tracks energy use in real time, prioritizes loads during outages or peak rates, and orchestrates solar, battery, and EV charging. For XFRA, it's the required orchestration layer that balances compute load against household energy demand. A home cannot host an XFRA node without one.
Per the XFRA white paper, homeowners receive subsidized energy and internet bills rather than a direct cash payment. Compute offtakers pay SPAN for capacity; SPAN passes a share back to the homeowner as credit applied against utility costs. The exact economics depend on the home's local electricity rate, internet plan tier, and the GPU workload assigned to that node. Homes in high-rate utilities (parts of California, New York, Massachusetts) see proportionally higher value than homes in low-rate utilities.
SPAN has not announced specific state markets for either the 2026 pilot or the 2027 broader rollout. What's known: the retrofit channel will prioritize existing SPAN-installed homes, and PulteGroup builds across many states. Raynora installs solar, SPAN, and battery in 30 states today, with AURA℠ tax-equity pass-through fully active in Arizona, California, Colorado, Florida, Massachusetts, New Jersey, Texas, and Washington, plus pre-sale enrollment open in Connecticut, Illinois, Maine, Maryland, Michigan, Missouri, New Hampshire, Ohio, Pennsylvania, and Virginia.
Three prerequisites: install a SPAN smart panel, install a whole-home battery, and confirm enough electrical capacity headroom (most 200-amp panels have 60% to 80% of headroom unused). Adding solar is optional but materially improves the home's compute-node economics by reducing energy cost. Raynora installs all three components under one project, and AURA℠ structures the install at $0 down with the 30% federal credit returned to you as cashback or upfront discount in the 18 states where AURA is active.
xfra.ai is SPAN's official site for the XFRA partnership with Nvidia and PulteGroup. gridhost.io is an independent venture by Raynora Solar that helps homeowners, builders, installers, and investors get positioned for XFRA before retrofits open in 2027. gridhost.io is not affiliated with SPAN, Nvidia, or PulteGroup. Final XFRA eligibility decisions are SPAN's, not ours.
Raynora Solar is the residential energy operator that runs gridhost.io. Raynora has been installing solar, batteries, and electrical infrastructure across 30 U.S. states since 2023, with AURA℠ tax-equity pass-through active in 18 of them. The same crews, the same 25-year warranties, the same financing infrastructure that built Raynora's solar business handle every gridhost.io install. Raynora is headquartered in Bethesda, MD with offices in Herndon, VA and Jersey City, NJ.
AURA℠ is Raynora's 25-year prepaid lease-to-own solar structure. A commercial leasing entity (Participate Energy) legally owns the system, claims the 30% federal Investment Tax Credit under Section 48E, and passes 100% of that value back to the homeowner as either a cashback check or an upfront discount. For XFRA pre-positioning, AURA lets you install solar + SPAN + battery at $0 down while capturing the federal credit, which expires for direct homeowners on July 4, 2026 per IRS Notice 2025-42.
The XFRA white paper focuses on owner-occupied homes and build-to-rent operators. Individual renters cannot install a SPAN smart panel without their landlord's authorization, so XFRA hosting in single-family rentals depends on the property owner. For build-to-rent operators considering pre-installing XFRA-ready hardware across their portfolios, gridhost.io routes those conversations to Raynora's commercial team. AURA℠ also works on long-term rental properties, vacation homes, and Airbnb/VRBO short-term rentals.
The full pre-positioning install (solar, SPAN smart panel, whole-home battery) typically runs $30,000 to $60,000 before incentives, depending on home size, panel count, and battery capacity selected. Under AURA℠, this is structured as $0 down on a 25-year prepaid lease, with the 30% federal credit returning to you as either an upfront discount lowering loan principal or as a cashback check delivered in two milestone payouts. Raynora's $89 Readiness Audit produces a personalized cost-and-yield model for your specific home, utility, and internet plan.
Homes with a SPAN smart panel installed before then are explicitly first in line. There is exactly one action you can take today that matters, and it takes less than 60 seconds to start.