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.