(Very) Passive (Not) Solar

The only place we’ve seen sunshine for the past … oh … I don’t know … at least a week, maybe two … was on a video call with Annelieke in Portugal. And this is what the 10 day forecast looks like:

This is that time of the year where the sun can be absent for weeks and the temperatures drop … and the theory of passive solar design simply cannot deliver. We simply cannot rely [for warmth during our winter months] on a daily cycle of solar charging and discharging.

That shortcoming hit me during the first winter at Bhudeva … and that is why I got excited when I discovered Passive Annual Heat Storage which is about creating a YEARLY cycle of charging abundant summer warmth and discharging it during winter.