# SPAN

> SPAN builds smart electrical panels that turn the most ignored box in the house into the control center for solar, batteries, EVs and heat pumps. Founded in 2018 by former Tesla Powerwall lead Arch Rao, the company sells to homeowners through installers and to utilities through its SPAN Edge program for grid-edge load management.

- **Founded:** 2018
- **Headquarters:** San Francisco, California, United States
- **Founders:** Arch Rao (Founder & CEO)
- **Team size:** ~350
- **Products:** SPAN Panel, SPAN Drive, SPAN Edge, PowerUp EMS
- **Notable:** First smart electrical panel certified to UL 3141 Power Control Systems standard., Raised $426M+ across 13 rounds since 2018., Launched 16- and 24-circuit panels in 2025 to fit smaller homes.

## Products & services

- **SPAN Panel** — A smart replacement for the traditional home electrical panel with circuit-level monitoring, app control, backup prioritization and built-in PowerUp EMS.
- **SPAN Drive** — A bidirectional-capable EV charger sold as an accessory to SPAN Panel, with dynamic charging speeds tied to whole-home load.
- **SPAN Edge** — A utility-grade, NEMA 3R outdoor device that gives utilities visibility and control at the grid edge, currently deployed by PG&E for the PanelBoost program.
- **PowerUp EMS** — Energy management software pre-installed in every SPAN Panel; the first listed EMS with UL 3141 Power Control System certification.

## Achievements

- First smart electrical panel certified to UL 3141 Power Control Systems standard.
- Raised $426M+ across 13 rounds since 2018.
- Launched 16- and 24-circuit panels in 2025 to fit smaller homes.
- Inc. Best Workplaces; Fast Company World Changing Ideas recognition.

## Latest updates

- **2026-01** — Closed $163M Series C led by Kyber Knight Capital to scale utility business.
- **2025-08** — Launched smaller 16/24-circuit panels for broader U.S. housing stock.
- **2025** — PG&E selected SPAN Edge for its PanelBoost program.

## Links

- Website: https://span.io
- LinkedIn: https://www.linkedin.com/company/spanio
- Twitter/X: https://twitter.com/span_io
- YouTube: https://www.youtube.com/@SPAN-io
- Instagram: https://www.instagram.com/get_span/
- Facebook: https://facebook.com/get.SPAN/

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Profile page: https://yespress.io/span
Published by YesPress — https://yespress.io
Last updated: 2026-05-18