ASA sized key equipment and assessed construction methods, routes, and durations, considering the retrofit compatibility with existing infrastructure (e.g. condensers or circulating water pumps) with new components (e.g. closed-cycle cooling towers or fine-mesh screens). The fine-mesh evaluation considers replacing the coarse-mesh on existing screens with fine-mesh; expanding the intake structure to maintain reasonably low intake velocities; and seasonal overlays of fine-mesh over coarse-mesh. ASA prepared cost estimates using vendor quotations, data from past projects, client information, and other costing tools with an accuracy goal of +50/-30 percent.
Changes in energy use were estimated using equipment operations and hydraulics.