Accuracy of the Sense?

[kevin1]

I did some hour by hour comparisons here, since my electric company lets me see my usage by down to 15 min periods.

How Accurate is Sense vs. Utility Metering?

OK - I decided to evaluate my old historic Sense vs. PG&E data one last time using a little different methodology. My biggest issue was figuring out how to remove the bad data, that primarily resulted from Sense data gaps. This time round my goal is to remove data via use of a linear model (regression), via a pure statistical approach. I’m going to: Compare my Sense hourly net data (consumption - solar) vs. my utilities hourly net usage data Use the data to create a linear model via regressi…

You should be within 2% on overall bills unless:

• You have lots and lots of data dropouts - they will be visible on your Power Meter waveform - waveforms from to zero.
• You have your Sense connected to a sub panel rather than your main panel feeds (several folks on the forum have mistakingly done this, even with an electrician leading the show).