The Chiller Plant is a significant energy consuming process. Although there are control strategies that have the potential to improve chiller performance, none of strategies provide a real-time means to optimize the chiller plant to reduce energy consumption and, at the same time, increase efficiency and reduce CO2 emissions. Miss-application of present strategies can actually increase energy use and, in extreme cases, even damage a chiller.
The Chiller Plant Optimizer™ (CPO) is a system that significantly improves the operation of a chiller plant by reducing energy use and CO2 emissions up to 25% on an annual basis. The CPO measures performance, calculates and displays the results, compares the results against a benchmark, and makes appropriate adjustments in operating parameters to match current conditions and loads, all in real-time. Built in safety limits also insure operation is always within the manufacturer’s working envelope.
The CPO, in achieving a 25% to 45% reduction in energy utilization in the operation of a chiller plant, will yield significant savings in the cost of operation as well as improve the overall reliability and operation of the plant.
Optimum Energy’s Loop is a cloud based application that networks customer provided sensing and control devices to optimize the total HVAC system. Compared to our CPO, it is more expensive to install and operate. Other control methods for improving chiller plant operations lack means to measure plant performance and apply corrective strategies in real-time.
Note: Carbon dioxide CO2 emissions are produced in proportion the electrical generation by the local utility. Therefore PG&E claims a factor of 0.524 lbs of CO2 per kWh, while the EPA puts the national number at 1.521 lbs of CO2 per kWh.
Web Site Objectives
When energy efficiency and chiller plant operations are part of your mission, whether direct or indirect, you need to be aware of these methods that will reduce your energy usage.
New and interesting control methods for central plant operations and energy efficiency improvements with promised chiller efficiency gains of 50% are on the market from organizations like Johnson Controls, Siemens, Optimum Energy and Energy Technology Engineering. Here are video tools that will help you to understand and evaluate the technologies to implement these strategies and typical savings that can be achieved.
This site has two sets of objectives that will assist you to evaluate these methods.
Using the menu at the top of page you can access the various strategies and video tools for your edification.
- Explain and show with videos how the proven strategies work together to realize the goal of energy savings.
- Expose the proven strategies and the Chiller Plant Optimizer(TM) application method used to implement these strategies.
- Provide the control contractor with a solution that can be implemented independently of existing control and building automation systems.
- Provide the engineer with solutions to support their efforts to configure and optimize client central plant operations.
- Using a video presentation, describe the Chiller Plant Optimizer with real time display of efficiency results.
- Explain condenser water temperature reset and how it is implemented in real time with a video presentation.
- Define cooling tower relief and show how it complements condenser water reset in real time.
- Clarify variable flow condenser water and inform one of the pros and cons, where it should and should not be considered as a valid strategy.
- Show how overall balanced chiller plant efficiency methods are applied, and tested and including an example of energy savings.
- Explain the chiller plant simulator and test bed and how it is used to configure the Chiller Plant Optimizer off site prior installation by a contractor.
- Show U.S. Patent # 6,718,779 B1 “Method to Optimize Chiller Plant Operation”
This site will help you in your quest for ways to reduce energy use, lower your electrical usage, improve your carbon foot print and save operating costs.
True savings are the result of an overall balanced approach for optimizing the chiller plant. Improving the efficiency in one are can result in increased energy use in another area. The claim for 50% reduction in chiller energy takes place with certain conditions which typically only occurs infrequently. Real energy savings must be measured on an annual basis. Actual savings depend on many factors and one should only expect annual savings of up to 25% for conservative estimating practices.