2020 March

Another month of house data... The weather is getting nice, with enough rain to put almost normal moisture back in the system. Grass is actually growing! Of course the bug news this month is COVID-19, so starting the 24th we have had everyone (2 adults + 2 children) at home... all... of... the... time... and we are not too crazy yet.

Power usage data is included in the monthly summary for the first time. We were net energy producers for the month (63.4kWh net production, or 2.3kWh/day). Because we don't have batteries, we exported 226kWh and imported 162kWh.



Inside / Outside% < 20 °C% 20 - 25 °C% > 25 °C
Inside 7 92 1
Outside 62 30 9

Methods: I have taken the 5 minutely data from the wirelessTag sensors and calculated the median temperature of each sensor for each hour and determined the proportion of hours falling inside of the 20 - 25 °C target temperature (using the R functions 'aggregate' and 'hist'). Inside includes data from 12 wirelessTag sensors spread across every room of the house. Outside is the data from the wirelessTag sensors outside near the cubby house and HRV intake. The water wall, clerestory and door data are not included.


Inside / OutsideMin5%25%Median75%95%Max
Inside 19 20 21 22 23 24 25
Outside 11 14 16 19 21 29 39

Methods: I have taken the 5 minutely data from the wirelessTag sensors and calculated the median temperature of each sensor for each hour and determined the indicated quantiles for each sensor (using the R functions 'aggregate' and 'quantile'). Inside includes data from 12 wirelessTag sensors spread across every room of the house. Outside is the data from the wirelessTag sensors in the cubby house, outside, and HRV intake. The water wall, clerestory and door data are not included.

QuantileEnergy Produced (kWh)Energy Net (kWh)
Min 1.98 -12.61
Median 12.80 2.33
Max 20.01 14.52

Methods: I have taken the 15 minutely data from the Enphase Enlighten website summed by day and determined the indicated quantiles (using the R functions 'aggregate' and 'quantile'). Energy produced and Energy Produced - Energy Consumed. Note: this only measures indoor electricity usage (doesn't include the rainwater tank pump, the garage door, or the garage lights) because the solar is tied into the inside distribution panel not the meter.

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