Slides from the presentation given by Glyn Hudson at GreenTo Sustainable Universities event in University of Turin Nov 2016 http://www.unitixunitosostenibile.it/index_en.html

1. OpenEnergyMonitor.org
Project Overview
GreenTo Build Workshop:
Build an open-source energy monitor using Arduino + ESP8266
@openenergymon Glyn Hudson 10th Nov 16
http://www.unitixunitosostenibile.it/index_en.html

2. ● How much energy do I use every day?
● How much energy does XXX appliance use compared to
XXX?
● How can I reduce my energy use?
● How does my energy use compare to other people?
● Is my electricity coming from renewable energy now?
● When is a good time to do my washing or charge my car
today?
● How much solar, wind turbines, hydro do I need to
supply my demand?
● How much energy storage do I need?
Open source energy monitoring & planning tools help us
understand, plan, test and manage our new zero-carbon energy
system in an open way that empowers people to get involved
with where their energy comes from and how it’ used.

3. Why Open Source?
We believe open source is a better way of doing things,
It’s a way in which people can get involved in developing and
making technology and build on the work of others......

5. Sustainable Technology:
Technology focused on environmental sustainability
& achieving low carbon
Open-source Technology:
Technology where source code, CAD drawings
& documentation is openly available
+
=
Open Sustainable Technology:
A collaboration that creates technology that empowers
everyone to participate in creating a future
where we live within ecological limits

7. Sensors
- Optical Pulse
- Clip - on CT

8. emonPi
Hardware
● 2 x CT channels
● 1 x AC-AC voltage sensor channel
● Optical pulse & multi temperature sensors
● Atmega328p
● RFM69CW RF - (Receive data from other RF nodes
e.g. emonTx, emonTH)
● OOK RF (optional) - RF plug control
● Communicate with Raspberry Pi3 via serial GPIO
Raspberry Pi based Energy Monitor &
web connected base station
emonBase: RasPi + RFM69Pi

9. emonTx V3
Remote energy monitoring node
Hardware
● 4 x CT channels
● 1 x AC-AC voltage sensor channel
● Optical pulse & multi temperature sensors
● Atmega328p - Arduino compatible
firmware
● RFM69CW
● Powered via AC-AC adapter, 3x AA
battery or USB 5V
Transmits power data every 10s via RF to be
received with emonPi / emonBase.

10. Low power remote temperature & humidity room
node
Hardware
● ATmega328p
● RFm69CW
● DHT22 / DS18B20 (multiple)
● 2 x AA batteries 7-10 months battery
Transmits temperature data every 60s via RF to be
received with emonPi / emonBase.
emonTH

11. Open Hardware Business (Megni)
● Local Manufacture: PCB's manufacture in UK,
SMT assembly in Bangor, N.Wales.
● Worldwide shipping: Over 10,000 orders to over
70 different countries over past 3 years.
● Open hardware business is an effective model
for making and distributing technology,
providing employment and supporting
open-source development.
● Blurs the traditional lines between “business”,
academic research and education.
https://shop.openenergymonitor.com

12. https://emoncms.org

13. Emoncms
https://emoncms.org

15. Emoncms Android & iOS mobile apps

16. https://community.openenergymonitor.org

17. https://guide.openenergymonitor.org
New user guide
helps make
getting started
easier

18. https://guide.openenergymonitor.org/setup/connect
New user
guide
helps
make
getting
started
easier

19. https://blog.openenergymonitor.org/2015/07/open-source-circular-economy-oscedays/
https://blog.openenergymonitor.org/2015/06/investigating-embodied-energy-of-emonpi/
emonPi Embodied Energy
Assuming installing in average household, if a 5% reduction in energy can be achieved
the emonPi will save the amount of energy used in it’s manufacture in 3 months.
Inspired By:

20. https://github.com/openenergymonitor/build-workshop
Build Workshop: Web connected Energy Monitor
Assemble & program
(Arduino) emonTx V1
Energy Monitor
Configure EmonESP to post to Emoncms (via ESP8266 WiFi)
Connect to WiFi Pixel
(ESP8266) display power
value via LED’s

21. @openenergymon
Thank you / grazie!