'Net metering' is sometimes seen in the news in the context of promoting the
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Answer: A. Net metering lets a household with rooftop solar panels send extra electricity to the grid. The meter records power both ways, and the consumer pays only for the net amount used. It encourages solar energy use.
Watch for: The word 'metering' makes students think of gas or water meters.
Why the other options are wrong
- B. Wrong because piped gas is billed by gas meters, not net metering.
- C. Wrong because CNG kits have no net metering.
- D. Wrong because water meters do not run both ways.
Source to check: Ministry of New and Renewable Energy, Rooftop solar programme guidelines; State Electricity Regulatory Commission net metering regulations (2014-15)
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.