System Assessment Standards

Energy Efficiency Assessments for Specific Systems: Overview

System assessments collect and analyze information on system design, operation, energy use, and performance data. This information is used to identify energy efficiency improvements that will optimize system energy use or performance. An assessment may also include additional recommendations for improving resource utilization, reducing per unit production cost, and improving environmental performance related to the assessed system(s).

Why Develop System Assessment Standards?

Superior Energy Performance will initially pursue standards for four system types:

  • Pumping
  • Compressed Air
  • Steam
  • Process Heating Systems

System assessment standards set requirements on how to conduct an energy-efficiency assessment at an individual facility for a specific system type. The standards provide a framework for conducting assessments that will help define the market for system assessment services.

The objective is to provide clarity for services that have been variously described as energy assessments, energy audits, energy surveys, and energy studies. Standards will assist both users and sellers of these services. By applying these standards, the systems are analyzed through various techniques such as measurement and analysis, which will identify, document, and prioritize energy performance improvement opportunities.

These standards also set the requirements for reporting the results of an assessment that considers the entire system – from energy inputs to the work performed as the result of these inputs. An assessment meeting these standards need not address each individual system component or subsystem within an industrial facility with equal weight; however, it shall be sufficiently comprehensive to identify the major energy efficiency opportunities for improving the facility's overall energy performance.

These standards are designed to be applied primarily at industrial facilities, but many of the concepts may be used in other facilities (e.g., in the institutional and commercial sectors).

How Will These Standards Be Developed?

All four standards are being developed through the American Society of Mechanical Engineers (ASME) with four technical committees in each system type and a consensus committee that guides all four standards.

Guidance documents are also being developed to provide technical background and application details to support the understanding of the system assessment standards. The guidance documents provide rationale for the technical requirements of the assessment standards and give technical guidance, application notes, alternate approaches, tips, techniques, and rules-of-thumb.


Draft Standards for Trial Use Approved Completed in June 2008
Draft Versions of Guidance Documents Developed Aug. 2008
Testing of Draft Standards and Guidance Documents Aug. through Nov. 2008
Project Team Review of Trial Use Comments/Revisions to Draft Dec. 2008 through Jan. 2009
Committee Approval/ANSI Public Review Jan. 2009 through June 2009
ANSI Approval of Standards and Guidance Documents Mid-2009