Yes, Richard Nelson did most of the R&D work in 1980’s and 1990’s. The following two charts showing the curves of four temperatures monitored (outside, inside, bubbles, and soap liquid tank) with a prototype greenhouse he set up in his own backyard:
Want to see how this prototype looks like? Here is a screenshot from a video:
Here is the video showing Richard’s three historic projects, from 1982 to 1997:
Sadly, all other parties doing either DIY or prototype tests either did not collect data as Richard did or chose not to reveal data they collected. The following chart is taken from a 2015 Master Thesis showing CO2 concentration, temperature and humudity of a large scale SolaRoof greenhouse built in Norway:
How does this large scale greenhouse look like? See below:
If you would like to read the thesis and Richard Nelson’s commentary, please go to the following URL:
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