Texas isn't the only place with cold weather right now. Even if other grids haven't collapsed, they're surely under higher strain than normal.

Ameren (electric company serving parts of MO and IL) has requested customers cut back on power consumption if at all possible.

When there's a sustained negative-degree-weather event for over a week, many people start plugging in extra space heaters or run their electric central heater longer, which places a huge amount of strain on the grid.

Luckily there are many in the midwest who use gas for heating, since it's way more efficient in the long winter months.

There are other factors too, like some plants not being maintained to a level where they can operate at full capacity in freezing weather for weeks at a time (many can, but some are not maintained to that standard—see TX), so those plants can't just pop online like they normally would during the summer.

Southwest Gas asked their Arizona natural gas customers to cut back as the pipeline through Arizona feeds Texas.

Did they? I have two properties serviced by them and didn’t get any notification.

>Southwest Gas is asking customers to conserve resources as states contend with cold weather.

According to the utility, shortages are not anticipated in Arizona, but conservation will help maintain the interstate pipeline system.

https://www.kgun9.com/news/local-news/southwest-gas-asks-cus...

Ontario Canada reporting. CAD$85/mwh (or ~US$65). We have several gw available on standby, and pretty much even on exports/imports. And we do export to USA as needed to/through Michigan/NY.

Parents got ~10" of snow yesterday night. But it's just business as usual.

https://www.ieso.ca/en/Power-Data

Could be a number of factors. Prices are generally composed of generation, loss, and congestion terms. The generation term is driven by the marginal cost of energy (i.e. what's the cheapest generator that still has capacity). The losses term is fairly self explanatory. The congestion term factors in the thermal ratings on equipment based on what can be delivered to a location.

Someone else speculated that this is due to a rise in Natural Gas costs. This would make some sense given that the rise is uniform across the region.

Disclaimer: I work in the energy space. I know nothing about what is happening here and these are personal opinions.

Demand, Texas isn't the only location experiencing severe cold weather that it isn't prepared for.

This will all repeat itself during the summer for excessive heat.

capacity and demand.