High density heat demand in inner city, sources of waste heat, and the speed of deployment at higher temperatures make heat networks a great solution for this.

I would also add that heat networks utilising waste heat are the perfect solution in high density cities. They also help address the pressure on the local electricity grid and can make use of energy storage.

For proper large scale, long term storage, PIT storage is where it's currently at. I had a chance to visit this one just outside Copenhagen last year. About 3.3 GWh capacity. Acts as a balancing mechanism for the main district heating transmission network.

And an order of magnitude cheaper than electrical storage. Great seeing large scale thermal storage getting discussed!

I can't see any mention of sector coupling. I know you're a big fan of Denmark's impressive progress to net zero. I was over there at the SES conference a couple of weeks ago and their looking at using large thermal storage to reduce grid constraints. No magic bullet but then nothing is.

Exhibit number 694