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Chilled Water System Optimization and Data-Driven Commissioning



Case study on a Fortune 100 Consumer Products R&D organization’s journey to optimize their central chilled water plants to reduce energy costs and gain operational efficiency.  Presentation focuses on the collaboration between the Owner, the Facility Management partner, and the Solutions Provider to achieve these outcomes and tangential benefits to the entire HVAC system.   The partnership has optimized cooling plants across multiple office and technical center campuses including 18 chillers and over 23,600 tons of cooling capacity.  These improvements are realizing annual electricity savings of $482,000 and one-time utility rebates of $535,000.

We will discuss the program’s goals:  (1) Provide a uniform automation approach, instrumentation, and sequences of operation to optimize existing equipment in place with an initial payback not to exceed 4 years; (2) establish KPIs to insure on-going operations are within predicted parameters; (3) optimize connected systems such as secondary pumps and air handlers, (4) build an overlay of fault detection and diagnostics (FDD) to guide  O&M practices; and finally (5) create a data-driven methodology based on historical operating data  to inform lifecycle equipment replacement and improvements.



David Eslinger, CEM
Senior Energy Engineer
Siemens Smart Infrastructure

Mr. Eslinger is an energy engineer with 20 years’ experience in building controls, performance contracting, heating and cooling, lighting, mechanical systems, industrial process equipment, combined heat and power, and renewable power generation.  Before joining Siemens Smart Infrastructure, David converted coal plant to biomass, managed off-taker agreements for a 300-MW windfarm and developed $16M in performance contracts at two Ohio State prisons.  In his current role, he develops new energy projects and services for Siemens building automation customers around Cincinnati, ranging from retro-commissioning air handling units to optimization of chilled water plants.  David also helps deploy cloud-based data analytics to help sustain energy savings and reduce maintenance surprises. 

Steve Winbigler
Global Technical Leader – Utilities Systems


Mr. Winbigler is responsible for providing Global Technical Governance for Facility Systems in Procter & Gamble’s GBS Workplace Services. Key Areas of focus include Asset Life Cycle Management, Energy Optimization, Organization Technical Skill Education, and Focused Improvement Opportunities.  Additionally, responsible for Performance of the Physical Security Systems and Global Technical Safety Systems at the Offices & Technical Research Facilities.