Final answer:
The operating cash flows for each year are $50,000, -$16,667, -$16,667, -$16,667, $12,500.
Step-by-step explanation:
To calculate the operating cash flows each year, we need to consider the cost of the grill, its salvage value, and the savings in energy expenses.
Year 0: The initial cash outflow is the cost of the grill, which is $50,000.
Year 1-3: The annual depreciation expense is calculated by dividing the cost of the grill by the useful life. In this case, it would be $50,000 / 3 = $16,667 per year. There are no other cash flows in these years.
Year 4: The grill is sold for scrap metal, generating a cash inflow of $12,500.
Year 5: There are no cash flows in this year.