The ‘Sand Battery’ that heats your home, NOT the planet!

The global energy crisis is starting to really hurt, and the prospects for winter fuel prices are starting to look pretty bleak for millions of people in the Northern hemisphere. So how do we get ourselves off our hopeless dependence on fossil fuels? And if the alternative is intermittent renewables then how are we going to keep our homes constantly warm during the colder months? Perhaps our friends in Scandinavia can provide some answers…