Commercial Building Energy Saver: An Energy Retrofit Analysis Toolkit

摘要

This paper introduces the Commercial Building Energy Saver (CBES),an energy retrofit analysis toolkit,developed by Lawrence Berkeley National Laboratory.The CBES toolkit provides a rich set of features: (1) Energy Benchmarking provides an ENERGY STAR score for the building and how it compares with its peer buildings; (2) Load Shape Analysis identifies potential building operation improvements using statistical analysis of the building's 15-minute interval electricity use data; (3) Preliminary Retrofit Analysis searches a pre-simulated database for retrofit measures based on investment criteria; and (4) Detailed Retrofit Analysis performs EnergyPlus simulation to evaluate energy savings of user configurable energy conservation measures considering the actual building characteristics and operation schedules.A case study is provided to demonstrate the use of the toolkit for retrofit analysis of a small office building.The object oriented software architecture of CBES enables its expansion to cover more building types,more climates,and more building technologies