first of the first?

Today is the first anniversary of moving into our passive house... bittersweet to the data keen as we didn't have internet working well enough to log data effectively for another couple months (so we still don't have a year worth of data)... and solar installed for a few more months after that... and then not actually generating power for a few more.

We still don't have the final occupancy certificiate, as we still have not yet fully realised the landscape plan (although the back yard grass was seeded three weeks ago and it has a noticeable green-ness to it). All in due time!

Of course the National Broadband Network and solar did get installed and eventually even activated.

The workbench in the garage and the bench seat in the front entry were built out of timber salvaged from the old house... and both are fit for purpose.

We have made a lot of progress on the landscaping (a pallet plus of geohex was installed, lots of tons of wood chips and sandstone gravel have been placed, lots of bricks from the old house were cleaned and placed to edge garden beds, gypsum and mushroom compost has been tilled into the back yard and native grass seed has been planted), but have a bit more to do (grass needs to grow, the raised food garden bed needs to be built, lots of other random planting needs to happen)... Hopefully in another six months?

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Temperature (Out vs. Old vs. New)

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I have fielded more than a few questions about the temperature of our passive house versus the temperature of the house that we lived in prior (on the same lot).  So I've used the data I had on hand which is temperature (°C) recorded every 5 minutes over since October 2012. For the sake of consistency I am only using the NetAtmo sensors that I have had for that entire period. So I only have one outside sensor and one inside sensor located in the the respective living room. The outside sensor moved around a bit, but it should be good enough.  I've converted those measurements to hourly averages.  This ends up being ~ 66,955 hours to play with (52,232 hours from the original house, 14,723 hours from the passive house). I've left the rental house out of this comparison, but it was disturbing like the original house despite being ~ 20 years old. The key take-home messages: The passive house a much less variation in temperature than the original house (or outside).  In the summe
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