I was thinking of ways to get around the peak solar generation being when you don't need it for heating and genuinely really heartening to hear about solutions like this.
The article doesn't mention the costs or complexity in building each unit but definitely implies it's cheaper than storing it batteries, which makes sense if it's essentially a heating element buried in sand.
Wonder what the smallest viable size would be, could you have one for each street / block of flats? One of the comments mentions burying them for better insulation which I'm assuming they didn't want to do just for the prototypes?
The article doesn't mention the costs or complexity in building each unit but definitely implies it's cheaper than storing it batteries, which makes sense if it's essentially a heating element buried in sand.
Wonder what the smallest viable size would be, could you have one for each street / block of flats? One of the comments mentions burying them for better insulation which I'm assuming they didn't want to do just for the prototypes?