COMBINING DISTRIBUTED GENERATION AND ENERGY MANAGEMENT TECHNOLOGIES TO ACHIEVE ENERGY COST SAVINGS

摘要

Applying energy management systems to building control systems provides the capability to merge several conventional and non-conventional cost reduction strategies. Energy consumption reductions are derived from conventional strategies such as temperature resets in air and water handling systems, chiller plant optimization, HVAC scheduling optimization, and automation of lighting system operation. These activities alone represent a significant potential for energy savings at a facility. In the current era of deregulation, both the natural gas and electric utility suppliers find themselves in a changing and more competitive business environment. As a result, creative rate options have been developed to retain current customers and to attract new ones. Electric utility rates, including RTP (real time pricing), and interruptible service (IS) have been available to PJM (Pennsylvania, New Jersey, and Maryland) customers since 1994. On-site power generation systems have been utilized by many facilities to take advantage of these rates to reduce electric costs. Energy management systems are also used to manage the operation of on-site power generation systems, conventionally for power outages or to improve power quality.