Certified Energy Auditor Economic Analysis of Projects Questions and Answers

Question 1

An energy efficiency project has an initial cost of $120,000 and is expected to generate annual savings of $30,000. The company also secured a one-time utility rebate of $15,000 upon project completion. What is the Simple Payback Period (SPP) for this project?

Accepted Answer

3.5 years

Answer

The Simple Payback Period is calculated by dividing the net initial investment by the annual savings. The net investment is the initial cost minus any rebates or incentives. In this case, ($120,000 - $15,000) / $30,000 = $105,000 / $30,000 = 3.5 years.

Question 2

An energy project is evaluated using the company's minimum attractive rate of return (MARR) as the discount rate. The analysis shows a Net Present Value (NPV) of $5,000. What does this positive NPV signify?

Accepted Answer

The project's return is greater than the company's MARR.

Answer

A positive Net Present Value (NPV) indicates that the present value of the project's future cash inflows, discounted at the company's minimum attractive rate of return (MARR), is greater than the present value of the cash outflows. This means the project's rate of return is higher than the minimum required rate, making it a financially attractive investment.

Question 3

Which of the following economic metrics is defined as the discount rate at which the Net Present Value (NPV) of all cash flows (both inflows and outflows) from a project equals zero?

Accepted Answer

Internal Rate of Return (IRR)

Answer

The Internal Rate of Return (IRR) is the specific discount rate that makes the Net Present Value (NPV) of a project's cash flows equal to zero. It represents the expected annualized rate of return for the investment.

Question 4

A hospital is deciding between two different chillers. Chiller A has a low initial purchase price but higher projected annual energy and maintenance costs. Chiller B has a significantly higher initial cost but is much more efficient, leading to lower annual costs over its 20-year expected life. Which economic analysis method is most suitable for comparing these two options?

Accepted Answer

Life Cycle Cost Analysis (LCCA)

Answer

Life Cycle Cost Analysis (LCCA) is the most appropriate method because it considers all costs associated with an asset over its entire lifespan. This includes initial purchase price, installation, energy consumption, maintenance, repair, and disposal costs. It is specifically designed for comparing alternatives with different initial and operating costs.

Question 5

When performing a discounted cash flow analysis for an energy project, the 'time value of money' principle is a core concept. This principle fundamentally states that:

Accepted Answer

A dollar received today is worth more than a dollar received in the future.

Answer

The time value of money is the concept that money available at the present time is worth more than the identical sum in the future due to its potential earning capacity. This core principle is the foundation for all discounted cash flow analyses, including NPV and IRR.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Economic Analysis of Projects Questions and Answers