Voxel Energy

Voxel Energy develops and deploys data centers together with their power supply, aiming to bypass electric utility interconnection queues. Its systems combine on-site solar generation, battery energy storage built from second-life electric-vehicle batteries, backup generation, and a proprietary DC microgrid power distribution architecture, packaged with modular prefabricated components so that facilities can be commissioned in months rather than years. The company describes the resulting facilities as closed loop, removing dependence on both electrical utilities and water resources, and cites inherent redundancy in its DC distribution system as the basis for handling dynamic AI training loads.

The delivery model has three stages: site selection, in which Voxel identifies land and designs power delivery systems to a customer's requirements; assembly, in which modular prefabricated components and systems are prepared in parallel with permitting and site work; and delivery, in which the vertically integrated power systems arrive ready for startup and commissioning without waiting on utility connections. Voxel frames its market thesis around grid constraints: it states that average data center time to power is about five years and growing, that roughly $3 trillion of data center projects are slated for construction by 2030 with half potentially unbuilt because of power constraints, and that the AI bottleneck is power rather than chips.

The company was founded in 2025 by three founders with Tesla backgrounds and participated in Y Combinator's Winter 2026 batch, where its primary partner was Jon Xu. Team size was reported at three.

Founding story

Voxel Energy was founded in 2025 by three ex-Tesla builders. Casey Spencer, CEO, was a project manager on Tesla's Infotainment/Autopilot team overseeing prototype hardware distribution and worked on ad-hoc Model 3 assembly lines during Tesla's 2018 "production hell"; he has since founded multiple hardware companies. Max Pfeiffer, CTO, designed electric big-rig prototypes at Tesla in 2017 and founded Maxwell Vehicles out of UW ECE, bootstrapping an EV manufacturing business using second-life EV batteries and motors and earning a place on the Forbes 30 Under 30 list for 2025. Evan Schmidt, COO, brings over a decade in architecture and commercial construction management, including data center, commercial and HVAC projects.

Business model

Voxel Energy pairs data center construction with the energy generation and storage assets that power it, selling vertically integrated capacity rather than relying on utility interconnection. It is taking reservations for capacity at sites it has under contract, targeting operators that already hold GPUs and are waiting for power.

Traction

Voxel reports that its systems prototype is live, operational and already running off-grid compute, that thousands of acres are under contract, and that it is accumulating batteries and accepting reservations for existing sites. It won the Y Combinator Product Showcase in January 2026 and published a white paper the same month. A third-party assessment notes that no named customers, revenue figures or live customer deployments are publicly evidenced, describing the company as pre-commercial.

Latest developments

Voxel won the Y Combinator Product Showcase on 27 January 2026 and published a white paper on 19 January 2026. Its February 2026 launch announcement stated that a systems prototype was operational and running off-grid compute, that acreage was under contract (updated from hundreds to thousands of acres), that batteries were being amassed, and that reservations were open for existing sites.