Maximization of electric power is perhaps the easier optimization method to implement as it does not require any costs to be included, so it is often used. Realization of the maximum power is achieved by reducing all heat exchanger temperature differences to the smallest value possible to extract the maximum heat from the produced geofluid. However, a ~zero pinch temperature difference requires infinite heat exchanger area, and thus infinite cost (Section S3.2.4). Thus, Adams et al. (2015) prescribed a minimum "practical" pinch temperature difference of 5°C.