Thornleigh Passivhaus

We have completed the 2nd upgrade to our power system. Our original solar system has: Longi Solar Half Cut Modules (14 x 375W = 5.25kW DC) Degradation profile: < 2% first year,  0.55% years 2-25. Efficiency: 19.5% with Enphase IQ7+ Microinverters (14 x 295W = 4.130 kW AC) Then we added batteries about a year ago: Enphase IQ Battery 5P  (2 x 5kWh = 10 kWh) Now we have topped up the solar system (in preparation for a future EV and to make us net positive in generation across the full year) with: AIKO Solar Neostar 2S (12 × 510W = 6.12kW DC) Degradation profile: < 1% first year,  0.35% years 2-30. Efficiency: 23% with Enphase IQ9 Microinverters (12 x 427W = 5.124kW AC) Enphase IQ Battery 5P (2 x 5kWh = 10 kWh) There are some technicalities in there including both the DC and AC sizing of the two solar arrays. The original panels are on the house roof and tilted 20° towards the sun, whereas the new panels are on the garage roof and tilted 7° away from the sun. This ...

May was cooler and very wet. Outside temperatures ranged from 7 to 26 °C (median temperature 16 °C), while inside we were a comfortable 19 to 24 °C (median 22 °C). The HRV was mostly between seasons but flirting with the heating season, so the split system mostly off or set to 21 °C heating. With the sun mostly hiding behind the rain clouds the rainwater tank is full, but the solar production was lower than typical. 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. We have made a decision to keep the house above the WHO recommended 18 °C rather than the passive house standard of 20 °C. 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'...