INVESTMENT-GRADE AUDIT (IGA)
The scope of our energy audits are consistent with ASHRAE Level III standards, and includes compilation of field data, engineering analysis, life-cycle costing, and energy modeling to calculate the project’s anticipated savings as accurately as possible. Taking into account such variables as building design, envelope, orientation, weather, schedules, controls, district systems, and energy-using systems, energy modeling allows Entegrity to prioritize energy efficiency measures by first cost, rate of return, and environmental impact. Entegrity gives the upfront engineering support to define energy and operational savings by measure. With the support of our Preconstruction Team, we quantify project costs in the IGA and develop plans for implementation.
An IGA includes many activities, but in general there are three (3) main phases of the process:
An energy model is a simulation based on building design, envelope, orientation, weather, schedules, controls, and energy-using systems to project comparative energy consumption and costs. Using energy modeling, Entegrity can prioritize energy efficiency measures by first cost, rate of return, and environmental impact. The most value from energy modeling is gained in early schematic design integration using a simple/box model and continues to provide more specific and thorough feedback through construction documents.
Entegrity’s Energy Models conform to all the requirements of: LEED and other sustatinability rating systems, U.S. Department of Energy UFC 1-200-01 Life Cycle Cost Assessment, ASHRAE 90.1, and Energy Policy Act 2005. Our team of Energy Modelers utilize the most advanced modeling software including IES Virtual Environment, Trane Trace, and Energy Plus.
MEASUREMENT & VERIFICATION
The Measurement & Verification process includes establishing the potential of a project’s efficiency measures to save energy and then verifies that the expected results associated with these upgrades are achieved. Entegrity can evaluate with specificity where and how energy is used and provide information that reassures our customers get the results they expect from investing in energy efficiency.
Our process utilizes the industry standard protocol of the IPMVP (International Performance M & V Protocol). Our M & V solutions are customized based on project needs and include metering hardware and an easy to use software platform.
M & V Basic Process:
- Determine IPMVP Option and Set Goals
- Gather Baseline Energy Data and Record
- Design Energy Saving Program
- Prepare Measurement and Verification Plan
- Issue Design Specifications for M&V Plan
- Commission M&V equipment
- Gather energy use data as defined in the M&V Plan
- Compute and Report Savings
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