Enhanced geothermal systems (EGSs) take advantage of heat deep beneath the Earth’s surface, forcing water through an engineered set of fractures at high pressure. The resulting steam can then be used to generate electricity or to heat buildings. However, this complex process is vulnerable to short-circuiting— a positive feedback loop in which the thermal contraction of cooled regions of the reservoir leads to increased fluid flow through these regions and diversion of fluid away from…