Archive for October, 2009
Home energy monitoring is a hit at BarCampLondon7
Thanks to @adamcohenrose for letting us upload his notes from the home energy monitoring talks at BarCampLondon7. Check out his blog here: http://adamcohenrose.blogspot.com/
Saturday, 24 October 2009 BarCampLondon7: Energy Efficiency & Usage Monitoring
Nigel Crawley
- digital meter — LED flashes fast or slow depending on how much electricity you use
- can pick that up with an arduino with wifi and then make available as EEML
- EEML (eeml.org) — XML for electricity cost
- can humm output eeml?
- can then input into Pachube
- can then do visualization like this:
- lilypad arduino — can sew into clothes
- can include a vibra-ball
- can recognise individual devices by whole home electricity usage
- fridge, kettle, toaster, electric oven
- Tom Raftery — greenmonk.net
- devices using too much electricity — an organisation will offer to replace it and tell you the savings
- Camden, New Jersey: government offers subsidies on lower energy appliances
- visualisations:
- one for schools that showed a polar bear running out of iceberg
- DisplayLink have done a blog post on energy visualisation
- the UK will run out of energy by 2014… we must save
- comparing with your neighbours
- mancini project — plug by plug usage
- there was some effort in the Zigbee standard — all appliances would publish their usage to a standard hub
- energyhive provided reduced price meters
- research that came out showed that by the end of the trial, loads of meters were in the drawer and not used
- several 1000 homes included in trial
- putting information online and sharing it is much more effective than a little meter in the corner
- in some places, there are dynamic tariffs
- would like to tell dishwasher to wash when it’s cheap
- not in the UK…
- energy providers buy at realtime, but sell at flat rate
- Dale Lane: energy costs vary between 2p and £3 a unit!!
- it’s in their interest to get us to use it at the right times
- base electricity is provided by nuclear power
- peak is provided by hydro
- DynamicDemand.co.uk: figure out national supply by checking frequency
- brownouts caused by frequency going too low
- looking at making fridges turn themselves off when the frequency is lower
- if all fridges did this, then peaks would be made less
- see also caniturniton.com
- in California they have battery farms (since the 80s)
- solar panels are less efficient in the heat…
- they get powered by light, not heat
- bike generators:
- bikes available for free — have generators
- when they are parked, they provide their power for the local buses
Some interesting stuff knocking about on the web…
…from a week or so ago.
- Microsoft positions itself as the platform that can integrate smart energy tech with SERA.
- Germany takes a giant leap into the energy revolution with, among other grand plans, the German Federal Ministry of Economics and Technology’s E-Energy scheme. Billed as “intelligent networking of energy generation, distribution and consumption”, 6 projects are being piloted which place the empowered consumer at the heart of the energy marketplace. You can check out the full E-Energy story here (PDF alert!).
- Google PowerMeter get the energy detectives on the case with the TED 5,000 partnership. Thanks @divydovy for flagging that one up.
- The Guardian gets excited about a new smart meter from Intelligent Sustainable Energy. Any Oxford Home Campers had a sneak peek at this one?
- And it looks like the Home Camp concept has caught on over the pond. The premier conference eh? I guess that makes us the protopremier unconference.
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