When will the panels pay for themselves?
Hospitals use a great deal of energy for heating, lighting and equipment. A hospital in southern Germany has installed solar panels on its roof and now produces about a fifth of its electricity itself. Managers say that the panels will pay for themselves within twelve years. Critics note that the hospital still needs electricity from the grid at night and that backup generators are essential for emergencies. The management agrees and says the panels are meant to reduce, not replace, external supply.
Answer and explanation
Correct answer: A. Within twelve years
- Step 1: Managers expect payback within twelve years. Answer: Within twelve years. Why not the others: The other periods are not mentioned.
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