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Table 4 Potential of three optimized EGS designs with an i-p separation of 2000 m

From: Maximum potential for geothermal power in Germany based on engineered geothermal systems

Parameter Doublet Triplet Reversed-triplet
Injection flow rate (L s −1) 100 150 90
Average thermal power (MW t ) 38.0 57.7 68.3
Average electric power (MW e ) 3.6 5.3 6.3
Surface area required a (km 2) 0.7 1.3 1.3
Electric energy produced in 31 years (TJ) 3584 5260 6251
  1. aProjection of the subsurface heat-exchange area on the surface. The actual land footprint is much less