Allina Abbott Northwestern Hospital

Overview

Allina Abbott Northwestern Hospital

Chilled Water Plant Optimization

Minneapolis, Minnesota

Overview

HGA was retained by Abbott Northwestern Hospital (ANWH) to help improve the efficiency of the chilled water systems at the Heart Hospital and Main Hospital. Work was divided into two phases: Phase 1, take action to obtain immediate energy savings for the 2016 cooling season and Phase 2, implement longer term optimization strategies.

In Phase 1, a number of critical changes were made to improve the existing system and prepare the plants for optimization. Phase 2 focused on the two plants’ overall system operation, first setting parameters that allow equipment to operate as designed, then setting control strategies and setpoint equations to reduce overall plant energy consumption. The standal