With EGS, the
water is the «bucket» that carries the
heat from depth to the surface, and will
typically be a relatively costly portion of the operation, so it will be cycled as a closed
system in wells that case - off potable aquifers, shuttling
water from the surface to the fractures where it's
heated, back up to the surface to extract the
heat for running turbines, and then back down to the fractures.
Mechanicals: All new plumbing with new
water heaters; Boiler
heating system replaced with forced air furnaces / duct work; Electric services upgraded to 100amp,
typically new panels and meter bank; Rod out sewer lines and repair any damaged pipes; Install laundry services in basement