ESCO Cheat Sheet 2026

The 30 highest-yield ESCO facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. For ESCO measurement and verification of water savings, which IPMVP option is best when a submetered water meter is installed on the retrofitted system? → Option B — Retrofit Isolation with continuous measurement
2. In Energy Service Company, why is energy auditing knowledge important for professional certification? → It demonstrates competence and ensures practitioners meet established standards
3. In Energy Service Company, what does the PDCA cycle stand for? → Plan, Do, Check, Act
4. What is the relationship between theory and practice in Energy Service Company measurement and verification? → Theory provides the foundation and framework that guides effective practical application
5. The use and release of CFCs and HCFCs has a far-reaching effect on ________. → the stratosphere
6. In a typical US commercial ESCO retro-commissioning study, what is the average energy cost savings range as a percentage of total facility energy cost? → 5–15%
7. What does 'C-rate' describe in battery energy storage systems? → The rate of charge or discharge relative to total battery capacity
8. What is the primary objective of building envelope in Energy Service Company? → To ensure competence and proficiency in core building envelope concepts
9. In a chilled water thermal energy storage (TES) system, energy is stored as: → Cooling capacity, typically in the form of chilled water or ice
10. A flywheel energy storage system stores energy primarily as: → Kinetic (rotational) energy of a spinning mass
11. What does 'round-trip efficiency' measure in an energy storage system? → The ratio of energy output to energy input over a complete charge-discharge cycle
12. Which approach is most effective for mastering performance contracting in Energy Service Company? → Combining theoretical study with practical application and regular review
13. Which backup strategy in Energy Service Company provides the most comprehensive data protection? → Regular incremental backups combined with periodic full backups
14. Which resource allocation strategy in Energy Service Company project management focuses on maximizing output with limited resources? → Optimization of available resources through prioritization
15. What is the primary objective of energy auditing in Energy Service Company? → To ensure competence and proficiency in core energy auditing concepts
16. Which of the following materials would be best suited for use as a semiconductor? → Silicon
17. In Energy Service Company, what role does continuing education play in performance contracting? → To keep professionals current with evolving standards, technologies, and best practices
18. What does 'state of charge' (SOC) represent in a battery energy storage system? → The current available energy expressed as a percentage of total capacity
19. When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should: → Run the compressor and recover from the high side of the system only.
20. In Energy Service Company, what is the purpose of an audit trail in information systems? → To maintain a chronological record of system activities and changes
21. 'Peak shaving' in energy storage refers to: → Using stored energy to reduce a facility's highest power consumption intervals
22. Which approach is most effective for mastering renewable energy in Energy Service Company? → Combining theoretical study with practical application and regular review
23. What is white balance used for in Energy Service Company? → To ensure accurate color reproduction by compensating for the color of the light source
24. Which battery chemistry is generally recognized for the longest cycle life among commercial energy storage options? → Lithium iron phosphate (LFP)
25. What is a best practice in Energy Service Company energy auditing? → A method or technique recognized as superior based on evidence and expert consensus
26. Under LEED v4, how many points can a commercial building earn through Enhanced Commissioning (EAc1)? → Up to 6 points
27. Which of the following meters must use internal power to check a load or circuit? → Ohmmeter
28. Which approach is most effective for mastering building envelope in Energy Service Company? → Combining theoretical study with practical application and regular review
29. What does system integration mean in Energy Service Company hvac systems? → Connecting different systems so they can work together and share data seamlessly
30. After the refrigerant has been recovered, which of the following should be used to flush the system? → Nitrogen