@janrosenow @dgoldsmithWhat’s the sunk carbon cost on the manufacture of a new heat pump? I can’t imagine it changes the conclusion that much, but if this is about replacing an existing boiler, those curves shouldn’t all met at t=0.

This is a great illustration of what the new energy order looks like:️ large to small️ centralised to decentralised️ large grids to microgrids️ one-directional to bi-directional️ passive consumers to active prosumersOf course this is simplified and highly stylised but it shows the direction of travel.