On 13.09.16 12:23, Russell Coker wrote:
On Monday, 12 September 2016 9:53:50 PM AEST Erik Christiansen via luv-main wrote: ...
http://www.solarquotes.com.au/blog/victorian-residential-demand-tariffs/
Interesting. I've been wondering how difficult it would be to use some IP enabled switches to control home energy use. If you had a meter on the main power that reports the power use to a Linux system then you could have it turn off non-essential devices and make your PCs stop running BOINC if power use is too high.
Something ready to go might be: https://openenergymonitor.org/emon/ if you don't mind wireless and Raspberry Pi. (If you find a more attractive product, it would be interesting to hear.) There's a tangentially related article in issue 136 (July - September 2016) of ReNew magazine (probably still in the newsagents), titled "Power without waste - Building (or buying) an efficient computer". I'm tempted by the Udoo X86, a US$89 mobo which appears to compare favourably for more general use compared to Raspberry Pi: https://www.youtube.com/watch?v=dJkHxDjFuNA The included arduino interface ought to provide a path to utilising arduino-based power measurement. ISTR that there are a couple of them out there, ... e.g. https://store.open-electronics.org/Powermeter_shield But there's nothing wrong with doing it all under Linux as suitable clamp-on measuring units seem to be available. (And the wireless hook-up is both awfully convenient and something of a safety feature.) Erik