Theory and Practise

We are intersted in how well our house will live up to the predications in the passivhaus spreadsheets. How much will the temperature fluctuate? Will we overheat? How much solar will we produce?
To answer these questions Mike has put various temperature and humidity sensors around the house, including the ktichen floor and concrete wall. They are based on Raspberry Pi and feed into the Open Energy Monitor Project. There are a multitude of ways to look at the results, but here are a few that I have chosen.
emoncms1The current temperature is an easy way to work out whether to open the windows in summer.emoncms 2Here I have reduced the scale so that I can look over the last six months in one window.
emoncms 3And finally here are the results merged together so that you can see how the house temperature compare to the external temperature.