Closed-loop geothermal involves no fracking, mitigating earthquakes
This form of next-gen geothermal works like a giant underground radiator, circulating fluids in huge, sealed loops deep underground.
Two wells are dug thousands of feet into the ground and connected by horizontal pipes to create a deep U-shaped well.
1
The loop is filled with water, which circulates through the well.
2
As the water travels, it absorbs heat.
3
Further legs can be drilled and connected off the horizontal pipe.
4
The hot water comes up to the surface where it is used to run a turbine to generate electricity.
5
Cooled water then travels back down again, continuing the
cycle.
6
thousands of feet
Two wells are dug thousands of feet into the ground and connected by horizontal pipes to create a deep U-shaped well.
1
The loop is filled with water, which circulates through the well.
2
As the water travels, it absorbs heat.
3
Further legs can be drilled and connected off the horizontal pipe.
4
The hot water comes up to the surface where it is used to run a turbine to generate electricity.
5
Cooled water then travels back down again, continuing the
cycle.
6
thousands of feet
Two wells are dug thousands of feet into the ground and connected by horizontal pipes to create a deep U-shaped well.
1
The loop is filled with water, which circulates through the well.
2
Further legs can be drilled and connected off the horizontal pipe.
3
As the water travels, it absorbs heat.
4
The hot water comes up to the surface where it is used to run a turbine to generate electricity.
5
Cooled water then travels back down again, continuing
the cycle.
6
thousands of feet
