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/
"Let me give you a number that should end every argument about national security. 417 kilograms.
That's roughly how much rare earth material goes into a single F-35. A Virginia-class submarine needs about ten times that.
Now ask the question nobody in Washington wants to answer out loud: who controls the supply? The chokehold, metal by metal.
NdPr. Neodymium-praseodymium oxide is the heart of the super-magnet.
China controls about 90% of rare earth processing and 93% of magnet manufacturing. America has exactly one rare earth mine, Mountain Pass.
And Beijing has shown the leash. Export controls in April 2025. A harsher second wave in October 2025. That sec
https://mailchi.mp/wealthresearchgroup/brics-chokehold-intensifies-russia-china-and-greenland-critical