CEM - Certified Energy Manager Energy Accounting and Economics Questions and Answers

Question 1

An energy efficiency project has an initial cost of $150,000 and is expected to generate annual savings of $40,000. The equipment has a useful life of 5 years and the company uses a discount rate of 8%. Which of the following economic evaluation methods ignores the time value of money?

Accepted Answer

Simple Payback Period (SPP)

Answer

The Simple Payback Period (SPP) is calculated by dividing the initial investment by the annual savings ($150,000 / $40,000 = 3.75 years). This method does not consider the time value of money, meaning it doesn't account for the fact that a dollar today is worth more than a dollar in the future. NPV, IRR, and LCC all incorporate a discount rate to account for the time value of money.

Question 2

A facility is considering two lighting retrofit projects. Project A costs $50,000 and saves $15,000 annually. Project B costs $80,000 and saves $22,000 annually. Both projects have a 10-year life. Using Net Present Value (NPV) with a 10% discount rate, which project should be chosen and why?

Accepted Answer

Project B, because it has a higher NPV.

Answer

To make the best decision, one must calculate the Net Present Value (NPV) for each project. NPV accounts for the time value of money and provides a measure of total project value. Project B, despite its higher initial cost, will have a higher NPV because its larger annual savings compound to a greater present value over the 10-year life at the given discount rate. While a positive NPV indicates a viable project, the one with the highest NPV is the most financially attractive option.

Question 3

Which of the following best defines the Internal Rate of Return (IRR)?

Accepted Answer

The discount rate at which the Net Present Value (NPV) of all cash flows from a project equals zero.

Answer

The Internal Rate of Return (IRR) is a key financial metric used to evaluate the profitability of an investment. It represents the discount rate that makes the Net Present Value (NPV) of all cash inflows and outflows equal to zero. If the IRR is greater than the company's required rate of return (or hurdle rate), the project is generally considered acceptable.

Question 4

A company is evaluating an investment in a new high-efficiency boiler. The analysis shows the project's Net Present Value (NPV) is positive. What does this indicate?

Accepted Answer

The project will generate more value in today's dollars than it costs.

Answer

A positive Net Present Value (NPV) signifies that the present value of the expected future cash inflows (savings) from the project, discounted at the company's required rate of return, is greater than the present value of the cash outflows (initial investment). In essence, the project is expected to be profitable and add value to the company.

Question 5

The Levelized Cost of Energy (LCOE) is a metric used to compare the economic viability of different energy-generating technologies. Which of the following is the most accurate description of what LCOE represents?

Accepted Answer

The average revenue per unit of electricity generated required to break even over the project's lifetime.

Answer

The Levelized Cost of Energy (LCOE) represents the average minimum price at which the electricity generated by an asset must be sold to offset the total costs of production (including capital, O&M, and fuel) over its assumed lifetime. It is calculated as the total lifetime cost (in present value terms) divided by the total lifetime energy production (also in present value terms). This allows for an apples-to-apples comparison between different generation technologies.

(CEM) Certified Emergency Manager Practice Test

(CEM) Certified Emergency Manager Practice Test

CEM - Certified Energy Manager Energy Accounting and Economics Questions and Answers