Diary for 18-08-2010
18th LEDs - now this is getting interesting: the sequel!
I started to hear a few murmurs about how electricity meters might work, and whether they really measure the current that results from equipment having a low power factor - and so recording higher energy consumption. Yesterday, I finally gathered myself together and spoke to someone who Knows About This Stuff - thank you David at Rayleigh Instruments in Essex. It turns out that the typical electricity meter measures kWh - that's Watts as in the useful energy that makes things wor...
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