Comment by shagie

Of old... https://web.archive.org/web/20210115152829/https://www.nrel....

It's got a "heat energy to/from campus" exchange in there.

That's a link in March and the air temperature was 31°F.

https://web.archive.org/web/20210708150410/https://www.nrel.... is later with air temperature of 68°F.