Emporia Vue 3 (Home Energy Monitor)

Quick verdict

The Vue 3 is the usual North American answer for circuit-level monitoring: two 200A mains CTs plus 8 or 16 50A branch clamps in one panel-mounted unit, with Wi-Fi or wired Ethernet. Out of the box it is a cloud product - Emporia states the monitor needs an active internet connection and stores no data locally, and there is no official Home Assistant integration, so the stock path is a community HACS integration talking to Emporia's cloud API. The local-first route is to reflash it with ESPHome, which turns it into fully local Home Assistant sensors; that first flash is a wired serial job on the board's UART pads, and only later updates go over Wi-Fi. Rated okay stock; excellent only if you take the ESPHome route.

Standout: Branch-circuit monitoring at a low price, with an ESP32 inside that can be reflashed with ESPHome for fully local Home Assistant sensors.

Notes last checked Aug 6, 2026.

Compatibility snapshot

Why it stands out

• Circuit-level detail: two 200A mains CTs plus 8 or 16 50A branch clamps in one panel-mounted unit
• Wired Ethernet as well as 2.4GHz Wi-Fi, which helps in a panel where Wi-Fi is marginal
• ESP32-based, so it can be reflashed with the emporia-vue-local ESPHome project for fully local Home Assistant sensors
• Tracks solar generation and net metering, so it suits a PV install

Reasons to hesitate

• Stock operation is cloud-bound: Emporia states it needs an active internet connection and does not store data locally
• No official Home Assistant integration and no public Emporia API; the stock HA path is a community HACS integration against the cloud
• Going local means a one-time WIRED serial flash with a USB-to-TTL adapter on the board's UART pads (only later updates are over Wi-Fi)
• Installing the clamps means working inside a live electrical panel

Best for

• North American split-phase panels where you want per-circuit detail, not just the mains
• Solar homes tracking production, consumption and net export on the Home Assistant Energy dashboard
• Tinkerers willing to flash ESPHome for real local control

Avoid if

• You want an official, supported, local Home Assistant integration with no flashing
• You are not comfortable working inside an electrical panel
• You need the device to keep working with no internet in its stock configuration

Privacy and local-control notes

Emporia's own product page says the monitor requires an active internet connection for its key features and does not support local data storage, so stock operation sends circuit-level energy data to Emporia's cloud. There is no official Home Assistant integration and no public Emporia API; the usual stock HA path is a community HACS integration that authenticates against Emporia's cloud on your behalf. Reflashing the board with ESPHome removes the cloud from the picture entirely.

Home Assistant support: supported · integration path: No official integration; community HACS 'Emporia Vue' (cloud API) or an ESPHome reflash (emporia-vue-local) for fully local sensors.

Built with ESPHome - see the ESPHome guide for Home Assistant →

Buying reality check

Price notes: Listed at $99.99 to $199.99 at Emporia depending on kit (monitor only through 16 branch sensors); the 3-phase model runs slightly higher ($109.99-$209.99). Verified on shop.emporiaenergy.com 2026-08-06.

Compare side by side: see sensor comparisons →

Smart home gifts for EV owners: which chargers are local

A Q4 gift guide for the EV owner running Home Assistant, ranked by how much of the charger keeps working without a vendor cloud, with the 240V circuit and the connector question stated up front.

Best energy monitoring for solar homes

HomeWizard P1 if your meter has the port; an ESPHome-flashed Emporia Vue 3 or a Shelly Pro 3EM for US panels. Local-first solar energy monitoring in Home Assistant.

Home Assistant energy dashboard from scratch

Build a local-first Home Assistant energy dashboard from scratch: real hardware (P1 meter, smart plugs, panel meters), how long-term statistics work, and turning kWh into decisions.