UPSC CSE Prelims
Question 97
Consider the following:
- Battery storage
- Biomass generators
- Fuel cells
- Rooftop solar photovoltaic units
How many of the above are considered "Distributed Energy Resources"?
View correct answer and explanation
Correct answer: D
Correct Option: D (All four)
Explanation: Distributed energy resources include decentralised generation and storage near users: batteries, biomass power, fuel cells and rooftop solar PV.
Statement / Pair / Item-wise Analysis:
1. Correct/True - Battery storage is a distributed storage resource.
2. Correct/True - Biomass generators can supply local distributed power.
3. Correct/True - Fuel cells can provide on-site electricity.
4. Correct/True - Rooftop solar PV is a classic behind-the-meter DER.
Option-wise Analysis:
A. Incorrect-it counts 1, but items 1, 2, 3, 4 qualify, giving 4.
B. Incorrect-it counts 2, but items 1, 2, 3, 4 qualify, giving 4.
C. Incorrect-it counts 3, but items 1, 2, 3, 4 qualify, giving 4.
D. Correct-exactly 4 of the 4 listed items satisfy the condition.