Abstract
Best practices in EGS exploitation include different configurations of production wells, two phase pipelines, separators, steam and brine pipelines, power generation plant or heat exchanger, and reinjection wells. Power plants may be either condensing or binary or hybrid. Power generation costs vary from 0,04-0,07 €/kWh(e) in hydrothermal systems to 0,17-0,35 €/kWh(e) in enhanced geothermal systems. The corresponding costs for heat supply vary from 0,004-0,007 €/kWh(th) in hydrothermal systems to 0,017-0,035 €/kWh(th) in enhanced geothermal systems. Other important practices include field management, environmental protection, monitoring and control, as well as establishing partnership with local community from the very beginning of an EGS project. Innovation needs should aim towards improving EGS economics by increasing useful energy output per EGS plant or reducing capital and maintenance costs.

Vilnius, Lithuania