Will the heat ever be used up?
Geothermal energy is constantly
being generated by the earth over
geological time. However EGS sites,
where water is circulated through the
same geothermal reservoir, will find
temperatures are reduced over time.
To combat this, a project may develop
multiple reservoirs which are used on a
rotational basis. The dormant reservoir
will naturally re-gain temperature and
be available for use again.