BMS Financial Management & Budgeting 2 — Questions and Answers
Question 1: A battery energy storage system (BESS) costs $500,000 installed and saves $60,000/year in demand charges. What is the simple payback period?
- 6.3 years
- 8.3 years (Correct answer)
- 10.2 years
- 12.5 years
Correct answer: 8.3 years
Simple payback = $500,000 ÷ $60,000/year = 8.33 years.
Question 2: Which financial metric accounts for the time value of money when evaluating a long-term BESS investment?
- Simple payback period
- Gross margin
- Net Present Value (NPV) (Correct answer)
- Debt-to-equity ratio
Correct answer: Net Present Value (NPV)
NPV discounts future cash flows to present value, properly capturing the time value of money over a project's life.
Question 3: A battery system has a 10-year useful life and cost $400,000. Using straight-line depreciation, what is the annual depreciation expense?
- $20,000
- $40,000 (Correct answer)
- $50,000
- $80,000
Correct answer: $40,000
Straight-line depreciation = $400,000 ÷ 10 years = $40,000/year.
Question 4: When budgeting for a BMS replacement project, which cost category covers ongoing software license renewals?
- Capital expenditure (CapEx)
- Operating expenditure (OpEx) (Correct answer)
- Salvage value
- Sunk cost
Correct answer: Operating expenditure (OpEx)
Recurring costs like software licenses are classified as operating expenditures (OpEx), not one-time capital costs.
Question 5: The Internal Rate of Return (IRR) of a battery project is 12%. If the company's cost of capital is 15%, what should the financial manager recommend?
- Proceed — IRR exceeds the discount rate
- Reject — IRR is below the required rate of return (Correct answer)
- Defer — IRR is insufficient but promising
- Accept — any positive IRR indicates profit
Correct answer: Reject — IRR is below the required rate of return
A project should be rejected when its IRR is below the company's cost of capital (hurdle rate), as it destroys value.
Question 6: Which federal incentive program most directly reduces the upfront capital cost of a commercial battery storage installation in the US?
- MACRS accelerated depreciation
- Investment Tax Credit (ITC) (Correct answer)
- Production Tax Credit (PTC)
- LIFO inventory accounting
Correct answer: Investment Tax Credit (ITC)
The Investment Tax Credit (ITC) under the Inflation Reduction Act provides a direct percentage credit on qualifying battery storage system costs.
Question 7: A budget variance report shows actual BMS maintenance costs are 20% above the planned budget. This is best described as:
- A favorable variance
- An unfavorable variance (Correct answer)
- A zero-based variance
- A sunk cost variance
Correct answer: An unfavorable variance
When actual costs exceed budgeted costs, the variance is unfavorable (adverse), indicating overspending.
BMS Financial Management & Budgeting 2
A battery energy storage system (BESS) costs $500,000 installed and saves $60,000/year in demand charges.
What is the simple payback period?