The document discusses Optimum Energy's HVAC optimization solutions which can reduce energy consumption and costs by 30-60% through technologies like OptimumHVAC, OptimumLOOP, and OptimumTRAV. It provides examples of universities, airports, and research facilities that achieved annual energy savings of 150,000 kWh to over 6,000,000 kWh through Optimum Energy's solutions, with payback periods ranging from 12 to 36 months.
KK Wind Solutions presentation on Control System Retrofit
Chilled Water Plant Optimization
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3. Commercial Building Energy Usage * Source: U.S. Energy Information Administration’s 2003 Commercial Buildings Energy Consumption Survey (CBECS) HVAC 50%
4. Setting a New HVAC Standard Proven technology: 60+ commercial/government projects Ultra High Performance HVAC 12-36 month payback 30-60% wire-to-water energy & operating cost reductions Web-based measurement & verification Patented, proprietary solution Demand-based software approach LEED points, Energy Star rating Reduce carbon emissions, save water Persistent optimization
5. Measuring Energy Efficiency in HVAC Average annual chiller plant efficiency in kW/ton. Input includes: chillers, tower fans, condenser and chilled water pumping. Chiller Plant Efficiency Scale
Commercial building market: More than 4.7 million commercial buildings in the U.S. Today, commercial buildings account for 18% of total U.S. energy consumption. USGBC estimates that greater building efficiency can meet 85% of future U.S. demand for energy, and a national commitment to green building has the potential to generate 2.5 million American jobs. So why HVAC? Heating, Ventilating and Air Conditioning (HVAC) systems are a major energy consumer in commercial buildings – typically 40% - and 7% of the total U.S. energy consumption. Green building is catching on Benefits include reduced operating costs, enhanced asset value and profits, and optimized life-cycle economic performance. Federal support and state level mandates are encouraging commercial facility owners to find new ways to increase energy efficiency. As our customer, Kevin Kuretich, at the University of Texas at Austin says, “We believed that taking a green approach can be both environmentally right and economically sound, and now, with Optimum Energy, we’ve proven it.”
Optimum Energy is the first (and only) company to apply a standard, enterprise applicable software approach to HVAC efficiency. Optimum Energy’s demand-based software solutions – called OptimumHVAC –help commercial and public sector facility operators save money by reducing HVAC energy consumption up to 60%. Depending on the size of the centrifugal chiller plant, that can mean hundreds of thousands of kW/hours – and in many cases, our customers are saving hundreds of thousands of dollars a year. With savings of 30 to 60 percent across the entire HVAC system regardless of your chiller plant or variable air volume HVAC system configuration, OptimumHVAC delivers a level of energy performance that sets a new standard for the industry. We call this Ultra High Performance HVAC. We create a baseline of performance starting with our building-specific energy savings analysis that forecasts energy reduction and the ROI, which is typically 12 to 36 months. Then we deliver the projected savings via OptimumHVAC’s persistent optimization software, resulting in increased operating efficiency that lasts the life of the plant. OptimumHVAC also gives facility managers the ability to measure and validate HVAC performance – anytime, anywhere, via a secure Web site. With OptimumMVM, you can be confident your HVAC is working efficiently – now and into the future. The energy savings leads to significant reductions in carbon emissions and water use. OptimumHVAC also makes it easy to raise green credibility by earning LEED points or help you become an Energy Star Leader. To date, Optimum Energy’s solutions have delivered the planned energy savings in more than 60 installations across the U.S. and the globe, including: office towers, airports, medical facilities, shopping centers, university campuses, convention centers, as well as public sector buildings of all types, including administrative buildings, libraries and courthouses.
This slide illustrates how we measure energy efficiency. Similar to MPG, we use a kW/ton measurement that calculates the amount of kW/ton of chilled water required to run the entire HVAC system (or C.O.P. for the air side). Another way we measure energy performance is by looking at the kW/ton of an entire chiller plant, or C.O.P for the air side. When we talk about kW/ton, we’re talking about a wire-to-water measurement that includes the entire plant – including centrifugal chillers, pumps, fans, etc. You can think of kW/ton or C.O.P. as the “miles per gallon” measurement of HVAC performance. No matter how far you drive (or how much cooling you need), the miles per gallon (or kW/ton) measure is consistent. Typical chiller plant installations run between 0.9 and 1.2 kW/ton. OptimumHVAC is setting a new standard for the industry with installations running 30% to 60% more efficiently – often less than 0.5 kW/ton for the entire chiller plant, or less than 0.25 kW/ton for the air system. Savings also come in the form of reduced cooling tower water usage and extended equipment life through less wear and tear. And they save money through better predictive maintenance and reduced time spent operating the plant. Discuss how we’re setting a new baseline that is really a paradigm shift in the industry, which until recently has not factored in energy efficiency as it designs HVAC systems.
Today’s HVAC systems use efficient equipment, but are controlled to provide a certain level of cooling, rather than being controlled to provide cooling in an energy efficient manner. The traditional method of control is to use PIDs. Under PID control, each system component is operated independently to maintain a setpoint (usually pressure or temperatures) that does not necessarily reflect the current requirements of the system. Controllability and stability are almost always issues with PID control. Energy optimization of any range of conditions almost always adds to these controllability and stability issues. Furthermore, energy optimization is constrained by precision and accuracy of the intermediate temperature and pressure instrumentation. That’s where Optimum Energy comes in. We provide software, which when combined with Variable Frequency Drives (VFDs) can reduce HVAC energy consumption by as much as 60% Even in efficient buildings that are LEED certified – we achieve 30% or more efficiency. Results can be forecasted – a complete ROI analysis provides savings projections that are validated after installation via ongoing measurement and verification of performance/savings.
*Animated version* The cornerstone of Optimum Energy’s energy efficiency solution is OptimumHVAC – third-generation software introduced in October 2008. OptimumHVAC ‘s bundled software solution includes OptimumLOOP and/or OptimumTRAV with OptimumMVM. We’ll give a deeper dive on each of these in the following slides, but this is the general overview. Depending on the type of HVAC system in your building, the optimization software you use will be OptimumLOOP or OptimumTRAV, or both. All OptimumHVAC installations (whether OptimumLOOP or OptimumTRAV) also include OptimumMVM. OptimumMVM provides real-time Web-based measurement, verification and management of that enables you to perform automated M&V reports, and view trend data that helps with preventive maintenance. OptimumMVM comes with long-term technical support from Optimum Energy’s technical support team to make sure the plant continues to operate as designed.
By comparing how OptimumHVAC plants are operated in comparison to conventional plants, you can see how OptimumMVM changes the way commercial HVAC systems are operated and maintained.
Describe the optimization architecture All the components of the HVAC system are controlled by the building automation system (BAS) OptimumHVAC is delivered on an industry standard controller that is able to communicate with any BAS using standard protocols such as BACnet. OptimumHVAC receives information from the BAS every 30 seconds, calculates how to run the HVAC system to optimize energy efficiency, and sends this information back to the BAS. With this delivery system, the BAS is always in control. We’ve decoupled the efficiency algorithms from the BAS. This provides a built-in fail safe: if OptimumHVAC is turned off, control will revert back to the BAS. The OptimumHVAC controller also sends information out to the OptimumMVM, where information is saved for M&V reports and tracking trends. OptimumMVM is the secure, Web-based measurement, verification and management service by which building operators and Optimum Energy engineers can view plant performance from anywhere they have access to the Internet.
The OptimumHVAC solution is a three part solution Without all three of these components, you are not competitive with OptimumHVAC. Efficiency contractors can offer engineering, and control engineers can provide some level of custom-programmed control sequences. Neither offers OptimumMVM.
Recap slide: briefly review key points. Quantitative economic results are key: ultimately it’s the ROI that sells our product.
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