Device Comparison
Aeotec Home Energy Meter vs Emporia Vue 3 vs Schneider Energy Monitor vs SPAN Panel
A North American home energy comparison for buyers choosing between retrofit monitoring and panel-first smart energy control.
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Which To Choose
Start with the practical fit, then read the table.
Aeotec Home Energy Meter
Best fit when region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants., solar import/export visibility, and local dashboards and Home Assistant.
Emporia Vue 3 Home Energy Monitor
Best fit when single-phase, split-phase, and three-phase panels; no high-leg systems, solar import/export visibility, and panel-installed CT clamp whole-home and circuit monitor.
SPAN Panel
Best fit when north American split-phase 120/240V service, solar import/export visibility, and local dashboards and Home Assistant.
Use this comparison when the goal is whole-home visibility and the shortlist includes both retrofit clamp systems and panel-integrated smart energy platforms.
At A Glance
Key fit signals before the full table
A quick pass over the most decision-shaping details for each device in this featured comparison.
Aeotec Home Energy Meter
- Phase
- Region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants.
- Installation
- Electrical-panel clamp-meter installation; US versions use plug-in power and EU versions are wired in. Licensed-electrician installation recommended.
- Measurement
- Clamp-based Z-Wave whole-home energy meter for consumption and solar / generator overproduction monitoring.
- Max current
- 200 A
Emporia Vue 3 Home Energy Monitor
- Phase
- Single-phase, split-phase, and three-phase panels; no high-leg systems
- Installation
- Panel-installed CT clamp whole-home and circuit monitor
- Measurement
- Panel CT monitoring for AC mains and up to 16 branch circuits, including bidirectional solar and net flow
- Max current
- 250 A
SPAN Panel
- Phase
- North American split-phase 120/240V service
- Installation
- Indoor/outdoor NEMA 3R replacement smart electrical panel; model and 16-48 circuit configuration are selected and installed by a SPAN Authorized Installer.
- Measurement
- Integrated whole-home and per-circuit energy monitoring with circuit control.
- Max current
- 200 A
Before You Decide
Checks that matter before price.
- Confirm your supply type first: single-phase, split-phase, or three-phase.
- Decide whether DIN-rail wiring, CT clamps, or utility-meter access fits your switchboard.
- Choose between cloud convenience and local data access before comparing prices.
- For solar homes, make sure import, export, and load readings are measured at the right point.
| Install fit | |||
|---|---|---|---|
| Phase support | Region-specific 1-phase, 2-phase / split-phase, and 3-phase ZW095 variants. | Single-phase, split-phase, and three-phase panels; no high-leg systems | North American split-phase 120/240V service |
| Installation | Electrical-panel clamp-meter installation; US versions use plug-in power and EU versions are wired in. Licensed-electrician installation recommended. | Panel-installed CT clamp whole-home and circuit monitor | Indoor/outdoor NEMA 3R replacement smart electrical panel; model and 16-48 circuit configuration are selected and installed by a SPAN Authorized Installer. |
| Measurement | Clamp-based Z-Wave whole-home energy meter for consumption and solar / generator overproduction monitoring. | Panel CT monitoring for AC mains and up to 16 branch circuits, including bidirectional solar and net flow | Integrated whole-home and per-circuit energy monitoring with circuit control. |
| Max current | 200 A | 250 A | 200 A |
| Nominal voltage | Unknown | 120/240 V AC split-phase; 3-phase kits available | Unknown |
| Meter fit | |||
| Accuracy class | Over 99% measurement accuracy when current is greater than 0.05 A | Typical +/-2% versus utility meter; not revenue-grade | Revenue accurate; MAIN 40: +/-0.5% mains and branch circuits (model-specific). |
| Current sensing | ZW095 clamp SKUs: US 2-clamp 200 A version; EU 1-clamp 60 A and 3-clamp 60 A variants. | Two 200 A main CTs included; three-phase kits add a third. Up to 16 rigid 50 A branch CTs; optional flexible main sensors. | Integrated panel-level and circuit-level metering; no external CT kit for normal SPAN Panel circuits. |
| Monitoring | |||
| Protocol | Z-Wave Plus | Wi-Fi / Ethernet / Emporia App | App / Smart Panel Ecosystem |
| Local API | Yes | No | Yes |
| Cloud dependency | No Aeotec cloud is required; the meter reports locally over Z-Wave to a compatible gateway. Remote app/cloud behavior depends on the chosen hub. | Required for normal use: Vue sends data over 2.4 GHz Wi-Fi to Emporia Cloud; the app reads cloud data. No local device API or local server. | Cloud required for normal app monitoring, control and OTA; MAIN 32 also supports local LAN API and on-premise access. |
| Home Assistant | Yes | No | Yes |
| Solar fit | |||
| Solar import/export | Yes | Yes | Yes |
| Buying context | |||
| Price range | USD 129.99 official US store snapshot | About $200-$300 | Installer supplied; premium smart-panel installed pricing |
| Availability | Global / region-specific Aeotec Z-Wave SKUs; availability depends on local Aeotec retailer or distributor stock. | International hardware compatibility across six continents where 120/240 V, phase, certification, sales-channel, and installation requirements are met; verify local availability and code compliance. | United States (all 50 states and Puerto Rico); not currently sold outside the US. |
| Source check | |||
| Last verified | Aug 23, 2026 | Aug 22, 2026 | Aug 18, 2026 |
| Product page | Official page | Official page | Official page |
| Documentation | Official docs | Official docs | Official docs |
Verdict
Choose Aeotec or Emporia for retrofit-friendly monitoring, Schneider for brand-aligned energy visibility, and SPAN when panel-level smart load control is the bigger goal.
FAQ
Common decision questions.
Which energy meter should I choose?
Choose the option that matches your installation constraints and data path first. For 3 energy meter options, the full table is most useful after you know whether local data access, cloud convenience, backup behavior, solar visibility, or expansion matters most.
What should I check before comparing prices?
Check installation fit, required accessories, official documentation, monitoring platform support, and any unknown fields in the source-checked table. Price is only useful once those constraints are clear.
Can these devices work with local dashboards or Home Assistant?
Aeotec Home Energy Meter, SPAN Panel list Home Assistant support in the catalog. Aeotec Home Energy Meter, SPAN Panel are marked with local API support. Confirm firmware, region, and integration maturity before treating this as a final compatibility guarantee.
Are unknown fields a reason to avoid a device?
Not always. Unknown means the field was not confirmed from the reviewed source data. Treat it as a question for the installer, reseller, or manufacturer before making a purchase decision.
Does the verdict replace the specification table?
No. The verdict is a practical shortcut. Use the table to confirm the exact constraints that matter for your home, especially installation, monitoring, and support details.