Span.io was founded in 2018 with the goal of replacing the standard residential electric panels.

The company offers an integrated smart electric panel that reduces the separate balance-of-system hardware necessary for PV and storage installations. The panel provides wireless connectivity that allows for user monitoring and control at the circuit level helping to improve power control in all-electric homes.

This precise monitoring can be leveraged by using SPAN's user-friendly app with drag and drop features to establish essential and non-essential circuits to be intelligently managed and powered by battery storage in the house or be turned on and off remotely.

Product specs:

• 100A-200A main breaker
• 225A bus
• Controllable Circuits - 32 per panel (90A max branch)
• Breakers - Accepts standard 1-in residential breakers
• Location - Indoor or outdoor mounting (NEMA 3R)
• Connectivity - Ethernet, WiFi (2.4GHz); Secondary Connectivity - Cellular (4G/LTE, 3G)

Span Edge was launched in Q2 of 2025 as an “at-the-meter” grid technology, going beyond traditional metering to deliver real-time power controls. The meter collar is designed to be installed in under 15 minutes by a technician. The company jointly announced an expanded partnership with Landis+Gyr to offer this solution to its utility partners across North America.

Per unit:

• Span Smart Panel costs USD 3.500 without including taxes, shipping and installation
• Span EV charger costs USD 750 without including taxes, shipping and installation

Available incentives bring down the panel cost to USD 2.900 and almost free in specific territories.

• Wireless connectivity - WiFi, ethernet, or cellular connectivity between the app interface and panel
• Auto-disconnect - Automatically disconnected from grid during a power outage
• Circuit-level interface - Provides energy consumption monitoring and control at the circuit level
• EV charging - Enables only-solar EV charging in times of excess generation and can pause other circuits to enable faster charging at 48A

Smart Panel:

• Integrated hardware residential electric panel, transformer, and gateway are integrated into a single unit to reduce hardware and labor costs for residential installations
• Flexible back-up loads allows back-up power from a battery to be routed to any load connected to the panel, rather than pre-wiring a subset of critical loads with intuitive drag-and-drop features using an app
• Advanced Metering Infrastructure has metering capabilities via its circuit-level monitoring and connectivity

Span Edge:

• Supporting rapid residential electrification: PowerUp lets homeowners with existing 100-200A service add electric loads like EV chargers, heat pumps, induction stoves, and electric water heaters without requiring increased utility service
• Providing multi-home demand flexibility: Utilities can use SPAN Dynamic Service RatingTM (DSR) to temporarily set a virtual limit for a home’s total consumption. This setpoint can be applied to groups of homes during peak times for load flexibility, including overall system balancing or specific transformer loading.