International performance measurement and verification protocol Volume III: Concepts and options for determining energy savings in new construction
Concepts and Practices for Determining Energy Savings in New Construction has been developed by the IPMVP Inc. (a non-profit organization) to provide a concise description of the best practice techniques for verifying the energy performance of new construction projects. The objective is to provide clear guidance to professionals seeking to verify energy and demand savings at either component or whole building level in new construction. Professionals seeking the M&V credit specified in the LEED(TM) rating system. Although there is significant overlap between this document and IPMVP Volume I, the New Construction Subcommittee composed this document in a manner that minimizes the need for referral to IPMVP Volume I. This was done in recognition that many users of this protocol may be new to the field of M&V and would find a stand-alone document easier to use. While this document is broadly consistent with IPMVP Volume I and uses the same format and key terms, some concepts and definitions have been modified to suit new construction. These differences are identified either in the main text or through the use of footnotes. This protocol should not be applied to retrofit savings determination. This document also does not address sampling methodologies for large-scale programs involving multiple buildings. A chapter on the measurement and verification of energy savings in new construction was first published in the 1997 IPMVP (Section 6), and since then has provided general guidance to the industry. However, experience gained from the application of the 1997 methods to several well-documented projects indicated a need to review the protocol and formed the basis for its further evolution. Additionally, the 2002 publication of ASHRAE Guideline 14, which addresses detailed procedures and instrumentation for calculating and verifying energy savings, provided additional supporting context for the advancement of the protocol. The result is this document, Concepts and Practices for Determining Energy Savings in New Construction, which supersedes Section 6 of the 1997 IPMVP. IPMVP, in collaboration with US Green Building Council, will endeavor to ensure that this protocol will be referenced in future versions of LEED(TM) for new construction, commencing with LEED(TM) version 3.0.