Persistence of Energy Savings in Industrial Retrocommissioning Projects

摘要

Pacific Gas and Electric (PG&E) and Nexant, Inc. are implementing an IndustrialRetrocommissioning (IRCx) program in Northern California. The first of its kind in the PG&Eservice territory, IRCx is focused on the entire manufacturing sector and has built-inrequirements intended to promote savings persistence.All major utilities have retrocommissioning (RCx) programs in their energy efficiencyportfolios, most of them focused on commercial buildings and systems. One daunting challengeof these programs has always been savings persistence.This paper will show how the Industrial RCx program is employing different measures toaddress the typically short useful life of RCx measures. The program incorporates advancedmeasurement and monitoring techniques into each facility’s operation and maintenanceprocedures to enhance the average measure life. The program is also demonstrating effectivecollaboration among multiple consultants and service providers. An example of the IRCxapproach is part of this paper.