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...
Friday, 24 February 2017
This is my electricity consumption for four days to 11.00 am on 22nd Feb 2017. There are large peaks for electric shower use, and smaller peaks for off peak heaters at night, and electric kettles.
I am reasonably happy with the relatively low consumption between 3 and 8pm, but I do have an immersion heater that kicks in very shortly thereafter. My wife complains if I leave it any later for it to start! Average consumption is running at 23.5 kWh (units) per day, only just under 1kW average, so let's see if I can reduce that. It should be relatively easy to do so as the seasons warm up (we have no aircon here in chilly England), the big test will be whether I can improve on like-for-like consumption over the years. I now have almost entirely LED lighting, and mainly new A+++ fridges and freezers. The big consumers are night-time heating, washing appliances and immersion heaters.
Monday, 20 February 2017
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.
Wednesday, 15 February 2017
Located in the Exeter University Innovation Centre
The Time Cheese Company Ltd is up and running!
Tom Langdon-Davies and Michael Watts have taken the plunge!
So now we can:
- Supply you with time-of-use indicators ("time cheeses" or any shape you like - time hearts, time fruits....)
- Create electricity awareness programmes for your workforce or community
- If you are an electricity supplier, we can support you in bringing about time-of-use shifting
- If you are introducing time-of-use tariffs, we can help you raise awareness and increase take-up and utilisation
email us to find out more-
Tuesday, 14 February 2017
If "we" stand to gain £56 billion from 7GW less of nuclear capacity by rational electricity time-of-use, who benefits? Who are "we"?
In the end, we all gain, either as bill-payers or as taxpayers, or as members of their households.
The suppliers will benefit in the short term by paying lower half-hourly wholesale prices at peak times.
Monday, 6 February 2017
|UK Electricity Production to 6th Feb 2017.|
On the Past Month chart,- third from the left - you can see that on 2nd Feb 2017. wind power - green - exceed coal - black - and virtually equalled nuclear - brown.
Whilst this is a major achievement, it was little more than momentary - wind is not and never will be a predictable source of electricity.
To make better use of it, we need to substantially shift the time we use electricity.
An excellent start is to stop using it for non-time sensitive devices -dishwashers, washing machines, tumble driers, immersion heaters - during the 3-8pm peak in UK
Happy timeshifting! Tell your friends you are doing it - it makes a difference.
Friday, 3 February 2017
Do you think there are problems with the decarbonization of electricity?
Well there are now!
Heat and transport are a long way behind electricity in decarbonizing.
And it will probably be electric solutions that enable them to make progress.
Electric cars, heat pumps and CHP heat all depend on and will increase demand for electricity.
The only way the grid can cope with this is massive domestic demand response.
So get time-shifting now!
Early adopters like you and I are the necessary beginning to this process.