Page 199 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

LEED Ener gy and Atmospher e 177

Requirements
• Option 1: Develop and implement a Measurement & Verification (M&V) Plan
consistent with Option D: Calibrated Simulation (Savings Estimation Method 2), as
specified in the International Performance Measurement & Verification Protocol (IPMVP)
Volume III: Concepts and Options for Determining Energy Savings in New Construction,
April, 2003.
Or
• Option 2: Option B: Energy Conservation Measure Isolation, as specified in the
International Performance Measurement & Verification Protocol (IPMVP) Volume III: Concepts
and Options for Determining Energy Savings in New Construction, April, 2003.
• For both options: the M&V period shall cover a period of no less than one year of
post-construction occupancy and a process for corrective action must be provided
if the results of the M&V Plan indicate that energy savings are not being achieved.

Potential Technologies and Strategies
Develop an M&V Plan to evaluate building and/or energy system performance. Characterize
the building and/or energy systems through energy simulation or engineering analysis.
Install the necessary metering equipment to measure energy use. Track performance by
comparing predicted performance to actual performance, broken down by component or
system as appropriate. Evaluate energy efficiency by comparing actual performance to
baseline performance. While the IPMVP describes specific actions for verifying savings
associated with energy conservation measures (ECMs) and strategies, this LEED credit
expands upon typical IPMVP M&V objectives. M&V activities should not necessarily be
confined to energy systems where ECMs or energy conservation strategies have been
implemented. The IPMVP provides guidance on M&V strategies and their appropriate
applications for various situations. These strategies should be used in conjunction with
monitoring and trend logging of significant energy systems to provide for the ongoing
accountability of building energy performance.

Calculations and Considerations
EAc5 gives an additional avenue for enhanced energy performance by implementing a
program that measures and verifies (M&V) energy performance in the built environment.
If this is done, then there is a potential for detecting and modifying energy inefficiencies
over the lifetime of a building. The credit is given if the Measurement and Verification
(M&V) Plan is developed and implemented through at least one year of postconstruction
occupancy. The engineering details for obtaining this credit are varied, and it is not the
intention of this book to go into these details. However, there are a few items useful for
all participants in a green building project to understand.
This credit is worth three points in LEED 2009 and is based on documents developed by
the Efficiency Valuation Organization (EVO), which is a nonprofit organization devoted to
global energy efficiency (www.evo-world.org/ipmvp.php). The relevant standard is the
International Performance Measurement and Verification Protocol (IPMVP), Volume III: Concepts
and Options for Determining Energy Savings in New Construction, April 2003. There are two
different approaches that can be taken. For smaller or less complex buildings where it is
relatively easy to isolate the separate energy-saving and energy systems, the credit may be
obtained by following the Energy Conservation Measure (ECM) Isolation method (Option
B) of the IPMVP Volume III. For more complex energy systems, the Whole Building
Calibration Simulation method (Option D) of the IPMVP Volume III may be chosen. In