top of page

Home Power Sensor

In order to track your power usage with your solar energy generation, you need to know how much electricity is extra to control certain major loads like charging your EV or running your HVAC.

​

2MuchSun has developed the PowerMC ($99) to be an affordable and easy to use WiFi power sensor.  It can work "out of the box "with no set up and will automatically interface to any of our diverters. It's designed to work with or without connecting to your home network. PowerMC includes a built-in lightweight MQTT broker/server to communicate directly with the SolarAdapter and/or IR-MiniSplit.

 

PowerMC is much more than a just power sensor. It also orchestrates our power diverters to turn on/off and adjust based on user set priorities and limits. This will maximize the usage of your solar power based on your needs. In addition, it can coordinate with qualified battery inverters to provide the most optimum tracking.

​

PowerMC can be easily integrated into any home automation software that supports MQTT devices.

IMG_1303-removebg_edited_edited.png

This is the control module with power cable and antenna

PowerMC's basic configuration can monitor the input to your split-phase main panel up to 160A. If your solar generation feeds into one of the circuits in your main panel, then that is all you need to integrate with any of our diverters such as the SolarAdapter or SolarEVSE or IR-MiniSplit. Otherwise, you will need an additional CT (current transformer) to determine the extra power.

​

PowerMC installation will require an electrician if you are not comfortable with opening up your main panel. PowerMC will also require power from a single 120V breaker either dedicated or shared. The small PowerMC control module and CTs remain inside the main panel. The external antenna can be easily fed to the outside of the main panel for increased signal strength.

PowerMC basic configuration - 2 CTs, antenna, power cable, control module

This is the basic configuration which includes two CTs and control module with Power and Status LEDs

Other features include software CT reversal for mains and solar, publishing data to its internal or an external MQTT broker and REST API server such as Emoncms, a web server to provide an easy to use interface and automatic firmware updates. The Show Data feature views the data and format being sent for both analysis and troubleshooting.

​

The PowerMC is not cloud-based so it can work without an Internet connection. In addition, it can use its internal network so no need to even have a home network.

​

The following are examples of the user interface via a web browser.

Configuration Page 1
Configuration Page 2
Configuration Page 3
Configuration Page 4
Show Devices Page 1
Show Devices Page 2
Show Data Page 1

Features:

​

  • Works with all US split phase home main panels

  • Two split core 160A capable CTs (current transformers)

  • Supports a third split core 100A CT for solar (option)

  • Works "out of the box" with the SolarAdapter or SolarEVSE or IR-MiniSplit - configuration free and no home network or Internet connection needed

  • Zero Meter Movement feature using qualified* battery inverter(s)

  • External antenna

  • Lightweight MQTT broker

  • Supports sending data via REST API like Emoncms

  • Configurable update rates from 0.5 to 15 seconds

  • View data being sent via Show Data

  • LED Power and connection indicators

  • WiFi STA/AP 2.4GHz with WPS support

  • Signal strength and connection indicators

  • Basic HTML user interface for compatibility with all browsers

  • Automatic firmware updates via the Internet

  • Supports mDNS addressing

  • Internal AC/DC 2W RU certified power supply

  • 1 year warranty

​

*qualified means your grid tied inverter supports MQTT output and on/off data such as the Sun2000 GTIL2 with our SunBeam remote controller

bottom of page