Quick answer
Smart panels like SPAN monitor and control individual circuits from an app and can intelligently manage loads — letting some Puget Sound homes add EV charging, a heat pump, and solar without always upsizing their electrical service. They suit electrification on limited ampacity, but only on otherwise sound wiring.
- A smart panel gives app-level visibility and control of individual circuits.
- Load management can let you add EV and heat pump without a full service upsize.
- It integrates cleanly with solar and battery backup for circuit prioritization.
- It manages loads on sound wiring — it doesn't fix knob-and-tube or overloaded circuits.
When a smart panel helps
Smart panels shine when a home is electrifying faster than its service can comfortably grow: you want a Level 2 EV charger and a heat pump, but your panel is near capacity and a full service upgrade is costly or constrained by the utility. They're also compelling for homeowners adding solar and battery who want app-level control over which circuits run during an outage, plus circuit-by-circuit energy visibility.
Electrification on limited ampacity
Many older Puget Sound homes sit on 100-amp service that's adequate today but tight for the EV-plus-heat-pump future. A smart panel's load management can sometimes let those high-draw loads coexist by intelligently sharing capacity, deferring the larger expense of a service upsize. Whether it's the right call depends on your actual load calculation — it's a genuine option to evaluate, not a guaranteed substitute for more service.
How it works
Monitoring and control
A smart panel replaces or works alongside your service panel and meters every circuit individually, surfacing real-time and historical usage in an app. You can see exactly what each appliance draws, remotely turn circuits on or off, and set priorities. For homeowners pursuing efficiency or troubleshooting a high bill, that circuit-level visibility is far more actionable than a single whole-home meter reading.
Dynamic load management
The defining feature is load management: the panel can automatically reduce or pause non-critical loads when total demand approaches the service limit, so a high-draw device like an EV charger or heat pump keeps running safely. Instead of every large load needing dedicated headroom, the panel orchestrates them within the existing service. In the right home, that can defer or avoid a full 200-amp upgrade.
Solar and backup integration
Smart panels integrate naturally with solar and battery systems, letting you designate which circuits stay powered during an outage and in what priority. Rather than a separate critical-loads subpanel, the smart panel itself decides what runs on battery and for how long. For Puget Sound homes combining solar, storage, and electrification, that unified control simplifies what would otherwise be several pieces of equipment.
Key terms and context
This guide is written for electrical decisions in the Puget Sound. It uses the same terminology you'll hear from inspectors, technicians, and permit offices.
Not a fix for unsafe wiring
A smart panel manages and monitors loads, but it does nothing to remedy knob-and-tube, aluminum branch wiring, or genuinely overloaded and undersized circuits. Installing one on top of unsafe infrastructure just adds an expensive app to underlying hazards. Those conditions need proper remediation first. The smart panel is a load-orchestration tool for sound wiring, not a substitute for fixing the wiring itself.
Assuming it always beats a service upgrade
Load management is powerful but bounded by your actual service size and usage patterns. In some homes the loads simply exceed what management can juggle, and a 200-amp upgrade is the sounder long-term answer. Choosing a smart panel without a load calculation can leave you constrained. The decision should follow the numbers, comparing managed capacity against a straightforward service upsize.
How we build this guidance
- Capabilities described per SPAN and smart-panel manufacturer documentation.
- Eco verifies wiring is sound and runs a load calculation before recommending a smart panel.
- We compare smart-panel load management against a conventional service upgrade honestly.
Methodology: Product capabilities per SPAN manufacturer documentation; suitability and install scope require an in-person service and wiring assessment.
Last updated: 2026-06-08
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Common questions
Does a SPAN panel replace my existing panel?
Typically yes — a smart panel like SPAN is installed as your main load center, replacing the conventional panel, though exact scope depends on your service and wiring. The install must be sized and coordinated to your home, so Eco assesses compatibility on site before recommending it as a replacement or alongside existing equipment.
Can a smart panel let me skip a service upgrade?
Sometimes. Its load management can let high-draw loads like EV charging and a heat pump share existing capacity, deferring or avoiding a full upsize in homes where the numbers work. In other homes the loads exceed what management can juggle and an upgrade is better. A load calculation determines which applies to you.
Is a smart panel worth the cost over a standard panel?
It depends on your goals. If you want circuit-level energy visibility, app control, solar and battery integration, and load management that may defer a service upgrade, the added cost can be justified. If you simply need reliable capacity, a conventional 200-amp panel may be more economical. Eco helps weigh the trade-offs for your situation.
Will a smart panel fix my old wiring problems?
No. A smart panel monitors and manages loads but doesn't remediate knob-and-tube, aluminum branch wiring, or overloaded circuits. Those need proper repair first. Think of the smart panel as an intelligent control layer for sound infrastructure — not a remedy for unsafe wiring behind the walls.
Does a smart panel work with solar and battery backup?
Yes — that's one of its strengths. Smart panels integrate with solar and battery systems and let you prioritize which circuits stay powered during an outage, all from the app. For Puget Sound homes combining electrification, solar, and storage, this unified control can simplify the overall system.