It's a really lazy one too - there are so many open source harnesses, including e.g. Codex and Kimi-CLI, and of course the leaked Claude Code source, so it's trivial to verify if someone even just bothered to ask an agent to check actual source code examples.
This is very standard stuff in Finland for decades. And before heat pumps became popular large tanks were common and those were heated during the night.
The explanation is lack of interconnect, not losses in transmission. If you have enough capacity to transfer electricity the prices will be equal in two neighboring electricity markets.
Finland is probably like 15000 kWh/year/house (for a new house more like 10000 kWh/year). All the heating of the house & water is done by electricity, though.
There are similar retailers in Australia. They even had a insurance against these super spikes such that the customers did have some fall back security. Details I'm not sure about but check https://www.amber.com.au/how-it-works