Comment by kieranmaine
18 hours ago
The system in the article works alongside gas and wood chips heating, so there are other options in place if the sand battery cannot be "charged".
FTA:
> The project will cut fossil-based emissions in the Vääksy district heating network by around 60% each year, by reducing natural gas use bu 80% and also decreasing wood chip consumption.
Not really, we're currently borderline. If OL3 goes down, and it's simultaneously cold over the nordics + northern germany and the baltics, and no wind, our industry will have to shutdown.