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myenergi harvi vs HomeWizard P1 Meter

Energy Gateway

myenergi harvi

Energy Gateway

HomeWizard P1 Meter

Decision point	myenergi harvi	HomeWizard P1 Meter

Install fit
Phase support	Unknown	Reads 1-phase or 3-phase data from a compatible smart meter P1 port
Installation	Indoor wall-mounted wireless CT bridge; protected outdoor use requires an IP-rated enclosure.	Plug-in indoor P1-port smart-meter reader; powered by SMR5 P1 port or USB-C on older meters.
Measurement	Wireless CT telemetry bridge for paired myenergi systems; not a standalone revenue meter.	Gateway/data logger reading smart-meter P1 telemetry for electricity import/export, gas, and solar surplus; not a direct current-carrying meter.
Max current	Unknown	0 A
Meter fit
Current sensing	Unknown	Reads data from the utility smart meter P1 port
Gateway fit
Connectivity	Proprietary myenergi low-power wireless link to paired master device; 868 MHz or 915 MHz by region. No Wi-Fi or Ethernet on harvi itself.	Wi-Fi 2.4 GHz 802.11b/g/n; local HTTP/JSON API when enabled in the HomeWizard app.
Downstream protocols	Up to three myenergi CT clamp inputs forwarded wirelessly to the paired myenergi master device.	P1 smart-meter port / DSMR-style smart-meter telemetry from the connected utility meter.
Connected devices	3	1
Role	Battery-free wireless CT sensor and telemetry bridge for zappi, eddi, and libbi systems.	P1 smart-meter reader and Wi-Fi data logger for electricity import/export, gas, and solar-surplus visibility.
Monitoring
Protocol	868 / 915 MHz proprietary wireless telemetry	Wi-Fi / Local API
Local API	No	Yes
Cloud dependency	No standalone harvi cloud; app/cloud visibility depends on the paired internet-connected myenergi master device.	HomeWizard app/account and Energy+ cloud features support setup, app history, and extended history; the Local API can provide LAN measurements when enabled.
Home Assistant	Unknown	Yes
Solar fit
Solar import/export	Yes	Yes
Buying context
Price range	Unknown	About EUR 25-EUR 40
Availability	United Kingdom official myenergi store; broader myenergi installer/distributor availability varies by country, with wireless frequency/version fit depending on market (868 MHz or 915 MHz).	Europe through HomeWizard official store and localized markets; requires a compatible P1/HAN smart meter. HomeWizard lists 1-phase and 3-phase smart-meter data support.
Source check
Last verified	Jun 26, 2026	Jun 14, 2026
Product page	Official page	Official page
Documentation	Official docs	Official docs