The #EdenProject today switches on its 5km deep #geothermal heat source to help power its climate control in the biomes (reducing their #energy bills by around 40%).
While there're issues of network connectivity (long delays currently) & expense (drilling these shafts is not cheap), the solution that has worked in #Iceland so well, may offer some benefit in our #renewableenergy mix....
so lets home we don't wait another 37 years for the next major geothermal project!