It is hard for me to imagine how that doesn't translate into a crisis of living standards. Either they're directly losing the ability to secure people comfortable lives, or they are losing the ability to export valuable products and becoming more vulnerable to foreign pressure. They literally can't have goods and services without energy.
[0] https://en.wikipedia.org/wiki/Energy_in_the_United_Kingdom#O... - the table here is a jaw dropper, looks like they are deindustrialising.