Hi , I'm Tom Langdon-Davies from a farm near Exeter in sunny Devon, South West England. I have worked all over the world for energy companies, renewable and conventional. Now it's time for me to see what I can do to raise awareness of the easy things we can do to make our energy more sustainable. Thanks for reading. Please help me by commenting!
After a brief spell seismic surveying around Europe and Africa, I ran the Natural Energy Centre in London - that was back in 1977, and we...
Monday, 20 February 2017
Interesting (to me anyway!) Appliance Signatures and Consumption
I linked the Owl transmitter to the Intuition receiver plugged into a Devolo broadband repeater. My broadband routers are 20 metres and around 3 metres of cob wall away from the transmitter, so no chance of a direct link!
I can now read the real-time data anywhere with an internet connection.
The graph starts at around 10:12 on 20th Feb and runs for two hours.
The initial base load is around 350 Watts, which is with two routers, TV aerial amplifiers, lights, and assorted fridges and freezers on. I am not proud of this level of base consumption!
The first sharp peak is an electric kettle, on for around one minute. The smoothing in the Owl software makes it look longer.
The subsequent long peak and smaller ones around every ten minutes are the washing machine.
It makes disaggregation (identifying demand from specific appliances) look fairly easy - but in practice it is not as easy as it looks, as several companies are discovering.