Understanding building performance is a central theme among building owners and managers. Measurement
and verification (M&V) of savings from energy efficiency projects has evolved into a well-defined and
mature discipline in North America. There are guidelines and protocols that define M&V, and a certification
path is available for the professionals who practice it. The primary purpose of M&V is to validate that time,
effort and money invested to reduce energy usage in buildings provides the expected results. This is done
by accurately measuring (or estimating) the savings generated from any type of energy efficiency project,
including major renovations, retrofits, facility improvements, and operational and behavioral changes.
These projects can be implemented solely by a building owner or through outside parties, such as energy
service providers, equipment manufacturers, financial service providers and utilities.