SPAN smart panel — control every circuit.
A SPAN smart panel replaces your standard breaker box with circuit-level monitoring and control from an app. It's the brain of a modern home — making solar, batteries, EV charging, and heat pumps work together for real cost control and energy-usage awareness. Nexis installs it as a licensed Master Electrician.
The upgrade
From breaker box to brain
A traditional panel just distributes power. SPAN measures and controls it — turning a static breaker box into an intelligent, app-managed hub.
Better together
SPAN makes your whole system smarter
SPAN is the layer that ties your energy together — giving you circuit-level cost control and real-time usage awareness across everything you add.
Solar
See exactly how much your panels offset — circuit by circuit — and understand your true production and use.
Explore solarBatteries
Make backup smarter — pick which circuits your battery protects and stretch runtime through an outage.
Explore batteriesEV Chargers
Manage charging so it never overloads your service, and schedule it to the cheapest off-peak hours.
Explore EV chargingHeat Pumps
Track what your heat pump actually costs to run and balance it against everything else in the home.
Explore heat pumpsIn your pocket
See — and control — every circuit from your phone
The SPAN app turns your electrical panel into a dashboard. Watch power flow in real time, spot what's driving your bill, and act on it — from off-peak EV charging to prioritizing circuits in an outage.
- Real-time, circuit-level usage — see exactly what every circuit is drawing, live and over time.
- Cost & savings awareness — understand what things cost to run and where to trim, like shifting EV charging off-peak.
- Remote control — turn circuits on or off and set priorities from anywhere.
- Smarter backup — during an outage, prioritize essential circuits to stretch your battery further.
Right-sized for your home
You might not need the biggest one
SPAN comes in a range of sizes and capabilities — from compact sub-panels to full whole-home panels. We size it to your circuits and goals, so you only pay for the capacity you'll use.
Compact
MAIN 16 · MLO 24 — fewer circuits for smaller homes, targeted backup, or adding smart control to a subpanel.
Standard
MAIN 32 — the popular whole-home choice for most single-family homes going solar, battery, and EV.
Large
MAIN 40 · MLO 48 — maximum circuit count for larger, fully-electrified homes.
MAIN = includes your main breaker · MLO = main-lug (feeds from your existing main). We'll recommend the right one at your assessment.
Free · No obligation
Make your home's power intelligent
Book a free assessment — we'll confirm SPAN fits your service, recommend the right size, and coordinate it with your solar, battery, EV charger, or heat pump. Licensed, permitted, and app-configured for you.
- Forbes #1 · Master Electrician 8785 A1
- Permitted, inspected & walked through the app
SPAN FAQ
Answers, straight up
It replaces your breaker box with a smart panel that monitors and controls every circuit from an app. You see energy use per circuit, control circuits remotely, and get smarter, prioritized battery backup during outages.
Yes — that's the point. SPAN is the hub that ties your energy system together: it shows how much your solar offsets, prioritizes which circuits your battery backs up, manages EV charging so it doesn't overload your service, and tracks what your heat pump costs to run.
Usually not. SPAN comes in several sizes and capabilities — from compact (MAIN 16, MLO 24) to whole-home (MAIN 40, MLO 48). We size it to your circuits and goals so you only pay for the capacity you'll use.
Nexis — as a licensed Massachusetts Master Electrician (8785 A1). We install, permit, configure, and walk you through the app.
Ready when you are
Book my free assessment
We'll confirm SPAN fits your setup, recommend the right size, and coordinate it with your solar, battery, EV, and heat pump. $0 down to start.
