Builds
The best way to start is to browse through the following build guides and choose which system best suits your needs:
Home energy monitoring
Mains AC energy monitor v3.0 - basic setup - If you just want to get a basic energy monitor running on a breadboard with an arduino start here.
SD Card Logging Power Monitor with LCD - Non-invasive AC power meter which logs the data to an SD card with a time stamp from a real-time clock chip. Data is displayed on LCD screen.
Wireless monitor with PGA and LCD
LCD Power Meter - by Matt Hodge
Solar PV monitoring and control
Solar Power Manager - 2 channel non invasive power meter with LCD, which diverts unused solar power to heat domestic water.
PV System Monitoring - 2 channel non invasive with Graphics LCD & External Temperture based on EMONTX & JeeNode
Wind power monitoring
Data logging for wind speed (and DC current using invasive hall sensor) - For monitoring the windspeed and power output of a small wind turbine. Data is logged to SD card.
Inverter or other interface
Extracting data from SMA SunnyBoy PV Inverters (Bluetooth) - by Stuart Pittaway
Extracting data from an SMA webBox - by Carlos Alonso Gabizó
Tools
Tutorial - programming a Nanode using Arduino board - No FTDI cable? step by step guide to programming using a Arduino board
Energy studies
Ogoronwy house sustainability project – by Trystan Lea
Cambridge Sensor Kit (CSK) Energy - build upon OpenEnergyMonitor design
Other
Bee hive monitor - by Glyn Hudson
Add your build here: We would love you to hear what you have been building with OpenEnergyMonitor, 3rd year 4th year project? Home monitoring systems? To add your build here: log in and then click on edit at the top of the page, add a link to your build page (you can create this on the site here by clicking on create content or if you have your own page just link through to it here).
Builds Archive
Old build documentation, systems that have since been superseded by new energy monitor builds:
Mains AC energy monitor + 7segment display + datalogging + internet graphing
Energy monitor + Simple web based graphing
Mains AC energy monitor 2 ch + Wireless display + temperate 3 ch + Wiznet internet posting
Other projects that might be useful
The free charge controller project - A project to develop a maximum power point tracking charge controller, ideal for wind turbines, solar PV etc
Re: Builds
I'm building an energy monitor with double CT probe for home consumption and photovoltaic production.
It shows on a led bar the balance between production and consumption and, on a nokia 3310 display, current data.
Every minute it will save data to db using ethernet shield.
Main module, with lcd display, will be put in the basement. Led bar, connected with an utp cable, will be put on the power panel on the 1st floor.
Main discussion (in italian)
http://forum.portalsole.it/viewtopic.php?f=3&t=735&start=15
Some picture
http://goo.gl/k4mGB
The website I made for monitoring my solar thermal system using Arduino (I will copy the design for the electrical data)
http://cicuci.dnsalias.com/solar_data.php
Re: Builds
This looks really cool, nice work!
Re: Builds
Pictures updated!
I'm having some trouble to make ethernet works together with the sparkfun bargraph breakout board (http://www.sparkfun.com/products/10936)
They both share SPI and ethernet stop responding.
Now I'm tring to disable the ledbar and enable ethernet every minute, before saving data, and it seems work.
I also added a watchdog.
The code:
http://dl.dropbox.com/u/236484/FVMeter.pde
Re: Builds
http://cicuci.dnsalias.com/fv_data.php
It's a work in progress (only working daily data)
Re: Builds
Nice, good work. Have youo had a look at emoncms? I can do some nice power graphs and calculate Kwh/d: http://openenergymonitor.org/emon/emoncms.
We also have full documentation for a solar PV monitoring system: http://openenergymonitor.org/emon/emontx/solarpv
Re: Builds
Hi - my energy meter is now up and running again:
http://www.flickr.com/photos/22415346@N06/5822031737/
Significant parts of it are based on the openenergy project, with the following
alterations:
* Isolating transformer to allow whole circuit to be powered from one AC source
* Variable gain amplifier - controlled by the uController, to ensure current makes best use of ADC throughout range
The veriboard could be a bit tidier :-) - but works for now
Re: Builds
https://github.com/Tooblippe/Energy_Logger/wiki
Detailed presentationa at - http://www.scribd.com/doc/58017656/Arduino-Home-Based-Electrical-Energy-Data-Logger
This is my attempt to build a small home based energy logger. It is not unique but has an RF12 on board so it can integrate with other systems, and it logs data to a OpenLog unit. This makes changing SD cards and logging a breeze
It is based on OpenEnergyMonitor
Many of these projects have been done all around the world. I think what makes this one unique is the fact that the sensor unit (the arduino with the CT) has a RF12 radio built in and also an Openlog unit from Sparkfun.
http://www.scribd.com/doc/58017656/Arduino-Home-Based-Electrical-Energy-Data-Logger