Thornleigh Passivhaus

April moved into autumnal weather (median temperature 17 °C). Outside temperatures ranged from 9 to 31 °C, while inside we were a comfortable 19.9 to 24.9 °C. The split system was off for the entire month and the HRV was inbetween seasons. Temperature from inside and outside the house as the percentage of hours in 0.5 °C bins. I've scaled the temperature in hope that I will be able to use the temperature range for all months. Methods:  I have taken the 5 minutely data from the wirelessTag sensors and calculated the median temperature 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 the wirelessTag sensors spread across nearly every room of the house. Outside is the data from the wirelessTag sensors outside near the cubby house and HRV intake. The water wall and door data are not included. Energy production and consumption: 1. tota...

Another successful Sustianable House Day. It was all quite civilised with 46 people across three sessions. Lots of great questions and interested people.

March had typical summer weather (hot days but cooling off at night)fading into fall towards the end of the month (median temperature 20.7 °C). The HRV was in the cooling season but we were able to cool the house by openning the windows in the evening / night (I runined what was set to be a perfect 100% in the passivhaus temperature range for the month by leaving the windows open on night). The split system was cooling during peak solar production but not overnight. Outside temperatures ranged from 12 to 24 °C, while inside we were a comfortable 19 to 25 °C. Temperature from inside and outside the house as the percentage of hours in 0.5 °C bins. I've scaled the temperature in hope that I will be able to use the temperature range for all months. Methods:  I have taken the 5 minutely data from the wirelessTag sensors and calculated the median temperature for each hour and determined the proportion of hours falling inside of the 20 - 25 °C target temperature (using the R funct...

February was definitely summer but very overcast with much higher humidity and overnight temperatures than other months in recent memory (median temperature 21.7 °C). The HRV was in the cooling season and we were often not able to cool the house by openning the windows in the evening / night as the overnight temperature didn't drop far enough. The split system was cooling during peak solar production and even overnight when the temperature did not drop. Outside temperatures ranged from 14 to 38 °C, while inside we were a comfortable 20 to 25 °C. The month was quite overcast which decreased our solar production... and running the A/C overnight resulted in higher energy consumption relative to last year. Temperature from inside and outside the house as the percentage of hours in 0.5 °C bins. I've scaled the temperature in hope that I will be able to use the temperature range for all months. Methods:  I have taken the 5 minutely data from the wirelessTag sensors and calculat...

January was definitely summer but very overcast with much higher humidity and overnight temperatures than other months in recent memory (median temperature 22.3 °C). The HRV was in the cooling season and we were often not able to cool the house by openning the windows in the evening / night as the overnight temperature didn't drop enough. The split system was cooling during peak solar production and even overnight when the temperature did not drop. Outside temperatures ranged from 15 to 38 °C, while inside we were a comfortable 21.6 to 25.9 °C. The month was quite overcast which decreased our solar production... and running the A/C overnight resulted in higher energy consumption relative to last year. Temperature from inside and outside the house as the percentage of hours in 0.5 °C bins. I've scaled the temperature in hope that I will be able to use the temperature range for all months. Methods:  I have taken the 5 minutely data from the wirelessTag sensors and calculate...

Decembers's weather was definitely summer but not super hot (median temperature 21.4 °C). The HRV was in the cooling season and we openned the windows a fair bit in the evening / night when it was cool out, and the split system was typically cooling during peak solar production. Outside temperatures ranged from 14 to 42 °C, while inside we were a comfortable 19.7 to 25.1 °C. The last half of the month was quite overcast which decreased our solar production... and with six of us for the holidays energy consumption was up relative to last year when we were away for the last half of the month. Temperature from inside and outside the house as the percentage of hours in 0.5 °C bins. I've scaled the temperature in hope that I will be able to use the temperature range for all months. Methods:  I have taken the 5 minutely data from the wirelessTag sensors and calculated the median temperature for each hour and determined the proportion of hours falling inside of the 20 - 25 °C ta...

I'ver splashed out and picked up a pair of Purple Air Flex air quality monitors. These sensors measure temperature, humidity, pressure, PM2.5 concentrations, and total volatile organic compounds (VOC). (The VOC readings are currently experimental.) The sensor outside data are publically viewable on the purple air map , but the inside sensor data is not disclosed in real time. I will however be doing some experiments with it. One of these days I'll find the ideal sensor package, but until then I just keep collecting!