What does M&V stand for, and how is it used in commissioning practice?

• A. Monitoring and Visualization; used to display data.
• B. Measurement and Validation; used to calibrate sensors.
• C. Management and Verification; used to authorize budgets.
• D. Measurement and Verification; used to validate energy savings and performance.

Answer: (D)

Measurement and Verification is the practice of quantifying and confirming energy savings and system performance. In commissioning, it means establishing a baseline of energy use, collecting metered data after implementation, and comparing actual results to the predicted savings, while adjusting for variables like weather and occupancy. This provides objective evidence that the project delivers the promised energy improvements and that the equipment operates as intended. The other options don’t fit because they describe data display (Monitoring and Visualization), sensor calibration (Calibration of sensors), or administrative budgeting (Management and Verification).