Hi,
So I have watts feeding into emoncms3 from a ted energy monitor... setup in this sequence:
Order Process Arg Actions
1 Log to feed power
2 Power to kWh power-kwh
3 kWh to kWh/d power-kwhd
4 histogram power-histrogram
Looking at the feeds - the kwh and kwh/d seem way off?
power = 550
power-kwh = 3.16
power-kwhd=210
No way, power-kwh = 3.16 (3.16kWh currently? it should be more like 550) - and kwh/d - 210?/
Any ideas?
I grabbed the latest version from git yesterday -
Re: kWh to kWh/d
Why would you expect the cumulative Energy in kWh to be the same as the power in W?
The energy E in kilowatt-hour (kWh) is equal to the power P in watts (W), times the time period t in hours (hr) divided by 1000:
E(kWh) = P(W) × t(hr) / 1000.
Re: kWh to kWh/d
oops typo above.
So in watts, 500. 500 watts * 1 / 1000 = 0.5 kWh. I'm getting 3.16 above??