NOT an advantage of renewable energy?

• A. Expensive capital cost of new tech
• B. Sustainable so will not run out
• C. Reduces operational cost with natural resources
• D. Little or no waste

Answer: (A)

The point being tested is recognizing which benefits renewables offer and spotting a drawback. The statement about expensive upfront capital costs isn’t an advantage, because although renewables can save money over time, the initial investment for equipment, installation, storage, and grid connections is high. That upfront cost acts as a barrier and is a disadvantage.

By contrast, renewable energy being sustainable means the supply won’t run out, which is a clear long-term benefit. Reducing operational costs comes from using free natural resources (like sun and wind) instead of paying for fuel, plus generally lower maintenance than fossil-fuel systems. Little or no waste reflects the environmental advantage of generating electricity with minimal emissions and waste.