[dheatherly]

@ShieldSean don’t wait for your tank to die.  Get it out of there and replace it with a heat pump water tank – we use the Rheem mentioned in the top post.  Our hot water energy usage (previously had what was called an ‘efficient’ tank) went from a strong #2 (around $30/mo) to an also ran among things like our fridge (now using about $7/mo).  The savings are crazy.  There’s a fed tax rebate and lots of power companies offer rebates as well.  Our ROI time was more or less a year with the rebates.  The warranty on the Rheem is 10 years.  Do it.  Don’t wait.

[dheatherly]

Just chiming in to give my support for graphing ‘total usage’.  Would be nice to see to keep track of conservation measures.

[dheatherly]

I think what you’re seeing is a rounding error.  I have solar as well – so see this screen often.  Total usage is what your house is currently using – in your case 6.216kW.  Solar is what your array is providing – 3.639kW.  And Main is what the net power usage is – so if you have net metering – what is or isn’t going back to the grid – in your case you’re using 2.576kW of grid power.  If the Main number goes negative then that’s what’s going back to the grid.  I say rounding error as 3.639 (solar) +2.576 (grid) is 6.215 (close to your 6.216 reading).

• This reply was modified 3 years, 11 months ago by dheatherly.

[dheatherly]

An added bit of info – when the dryer isn’t running my balance is around .200-.300. / second.  When the dryer is running but not heating the balance drops to around .030/s.  when the heating element kicked in (as evidenced by an increase in energy usage) the balance energy drops into negative territory (like around -.030/s). Is this a factor of accuracy error or is using a 2.0 multiplier on this (or some other 240v circuit) not ideal?

[dheatherly]

Hopefully a quick easy question. Switched over from gen 1 to gen 2 so going through the sensor allocation again. Attached one sensor to one of the wires coming from a 240v breaker for my dryer. Noticed later the dryer was running but emporia wasn’t tracking the energy draw on that sensor. I then switched it to the other wire on that same breaker and all is good (using 2x multiplier). Why is that?

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