due to cold brittle behavior of the materials that they are made of.
"Lethbridge was -30 as was Drumheller, according to The Weather Network."
Actually we have known a solid week of minus forty quite often over the years in Central Alberta.
Also, snow accumulations and ice storms are bound to shut off solar at least for a while.
Here is the AESO forecast FWIW.
https://www.aeso.ca/grid/grid-planning/forecasting/wind-and-solar-power-forecasting/
…The invective, the cheap booing, the grandstanding, & the flirtation with a lethal communist government are not going down well. Americans are starting to take notice." Victor Davis Hanson is a national treasure & when he speaks, people should give a listen.
https://x.com/CecileShaw/status/2098859375557480780