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OpenEnergyMonitor emonPi Solar PV - UK




1 x OpenEnergyMonitor emonPi Solar PV - UK   +£179.75

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The emonPi - Solar PV Version

The emonPi is an all-in-one Raspberry Pi based energy monitoring unit making for a simple installation where Ethernet or WiFi is available at the meter location. The emonPi can monitor two single-phase AC circuits using clip-on CT sensors, and can also monitor temperature, and interface directly with utility meters via an optical pulse sensor (optional).

The emonPi is based on a RaspberryPi + emonPi Shield PCB. The emonPi features a ATmega328p 8-bit microcontroller which is Arduino compatible.

Home Energy

The OpenEnergyMonitor system can be used as a simple home energy monitoring system for understanding energy consumption. View and explore real-time power and daily energy consumption in kWh. MyElectric is a web app which runs on Emoncms. MyElectric is also available as a native Android app

Understanding Energy Consumption

  • Monitor in real-time
  • Review historic data
  • Calculate cost
  • View on Android app

MyElectric App

The main view shows a moving window power view of site-consumption in the top half and historic daily energy consumption in kWh in the bottom half.

Energy View

Cost View

Solar PV

The OpenEnergyMonitor Solar PV monitor is a tool to help you make the most of your solar generation. Providing real-time and historic information on your solar generation and demand matching, it will help you make better use of available solar power. MySolar PV is a dashboard app which runs on Emoncms.

 Make the most of your solar PV:

  • Monitor generation and grid import
  • Calculate on-site use of solar.
  • Real-time & historic performance
  • Optimise demand matching

MySolarPV App

Power View

The main view shows a moving window power view of solar generation Vs site-consumption which, can be used to explore matching at any given moment of the day. Site-consumption is shown in blue and solar generation in yellow. The totals at the bottom of the page relate to the current window selected and show at a glance how much of site-consumption was supplied directly from solar and how much of the solar generation was exported to the grid.


History View

Clicking on view history brings up a bar graph showing solar generation and site-consumption on a daily basis. Including how much of the solar generation is used directly on site and how much is exported.






Emoncms is a powerful open-source web-app for processing, logging and visualising energy, temperature and other environmental data.

The emonPi Features

  • Raspberry Pi 3-based energy monitor
  • Install next to utility meter
  • Local & remote data logging with Emoncms, the open-source web-app for processing, logging and visualising energy and other environmental data, such as humidity and temperature
  • Requires WiFi / Ethernet plus 2 x power outlets
  • Requires pre-built SD card image (included)
  • CE certified
  • Made in UK
  • RoHS
  • Conflict material free components

EmonPi Solar PV bundle Includes:

  • 1 x emonPi
  • 2 x CT sensors
  • 1 x AC-AC voltage sensor adapter
  • 1 x 5V DC USB Power adapter
  • 1 x Mini USB cable


Extend your emonPi's functionality  with some of the following softwares and tools - Emoncms, MQTT, NodeRED and OpenHAB.

The OpenEnergyMonitor System

The OpenEnergyMonitor system has the capability to monitor electrical energy use / generation, temperature and humidity. The full system is made up of five main units that can be assembled and configured to work for a variety of applications. The system is fully open-source, both hardware and software. All hardware is based on the Arduino and Raspberry Pi platforms. The emonTx, Optical Utility Meter LED Pulse Sensor are a standalone options, while emonTH is a wireless room temperature and humidity sensor node. The emonBase represents an alternative to emonPi. All units are available separately.

Technical Details

  • Frequency: 433Mhz
  • Accuracy: >89%
  • Measuring Current (CT): 50mA-96A
  • Measuring Voltage (AC-AC): 110VAC-254VAC
  • Sample period: 5s
  • RF range: 40m-100m
  • Power Consumption: 300-500mA RasPi2 / 400-800mA RasPi3
  • Embodied Energy: 40KWh
  • Operating temperature: -25 to +80 DegC
  • Physical Dimensions: 10cm x 8.5cm x 10cm
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Browse 1 questions Browse 1 questions and 1 answers
Hi what is included in the emonPI - solar PV kit?
Paul N. 16 Sep 2017

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