CEA Measurement & Verification (M&V) Protocols Flashcards
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Read the first 6 CEA Measurement & Verification (M&V) Protocols flashcards as text
What is the primary purpose of an M&V plan developed before project implementation?
Answer: To document the methodology, boundaries, baseline, and procedures for determining savings during the performance period
An M&V plan defines upfront how savings will be calculated, what will be measured, and how disputes will be resolved, providing a shared reference for all parties.
In M&V reporting, what does 'avoided energy use' represent?
Answer: The difference between adjusted baseline energy use and actual post-retrofit energy use
Avoided energy use = adjusted baseline energy – actual post-retrofit energy, representing the savings attributable to the efficiency measures.
What is the significance of a high coefficient of variation (CV) in an energy regression model used for M&V?
Answer: It indicates high variability or poor model fit, reducing confidence in savings estimates
A high CV(RMSE) in a regression model indicates that the model explains energy use poorly, making savings estimates less reliable and potentially requiring a different M&V approach.
Under IPMVP, which party typically bears the risk of 'performance risk' in an ESPC?
Answer: The ESCO (Energy Service Company)
In an ESPC, the ESCO guarantees the energy savings and bears performance risk — if savings fall short, the ESCO must cover the shortfall.
What is 'persistence of savings' monitoring in long-term M&V programs?
Answer: Ongoing verification that energy savings are maintained over time as equipment ages or operational changes occur
Persistence monitoring confirms that savings don't degrade over time due to equipment degradation, operational drift, or system setpoint changes.
Which measurement approach is recommended when metering individual pieces of equipment would be too costly relative to the savings being verified?
Answer: Stipulated values agreed upon by both parties under IPMVP Option A
When full metering costs exceed the value gained, IPMVP Option A allows stipulating well-understood parameters to keep M&V cost-effective.