Voxel Energy

Energy independent data centers with solar and repurposed batteries.

Y CombinatorWinter 2026ActiveIndustrialsEnergyArtificial IntelligenceHardwareSolar PowerEnergy

What they do

Problem

Data centers face long delays and high costs to get sufficient grid power connections and reliable energy supply.

Solution

Voxel builds on-site solar generation and repurposed EV-battery storage using a DC microgrid architecture to power data centers without utility grid interconnection.

Who it's for

Data center operators and developers needing faster, cheaper time-to-power and energy independence.

Founders

Casey Spencer

Founder

Casey is an award winning engineer, and was previously Project Manager of Tesla’s Infotainment/Autopilot team, where he oversaw distribution of prototype hardware. Casey played a key role in Tesla’s “production hell” in 2018, leading teams that built ad-hoc assembly lines, then worked on those lines himself, building Model 3’s.

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Max Pfeiffer

Founder

Forbes 30 Under 30 recognized for bootstrapping Maxwell Vehicles, a multi-million-dollar EV manufacturing business founded out of UW ECE following a year at Tesla designing electric big-rig prototypes. Built the first economically sustainable and materially circular model for manufacturing EVs using second-life EV batteries and motors. Now focused on transformational deployment of clean energy technologies in AI energy infrastructure.

Evan Schmidt

Founder

Evan is a business leader with over a decade of experience in architecture and commercial construction management, including work on data centers. His hands-on engineering and fabrication expertise allow him to integrate innovation with the practical demands of technical construction. Now deploying clean energy technologies to meet the demands of cutting edge computing.