Nick Hedley | SA may have significant untapped geothermal energy potential

The push for clean energy has yielded technological advancements that make subterranean hot water and steam reservoirs more widely accessible and useable than ever before, says Nick Hedley.

Geothermal energy is in the midst of a renaissance as the world moves to replace polluting fossil fuels with cheaper, cleaner alternatives.

For decades, humans have harvested heat from within the earth's crust to generate electricity, regulate temperatures in our homes, and fuel industrial processes.