Which option describes net metering?

• A. Exporting all energy to the grid at market price.
• B. Measuring energy efficiency of appliances.
• C. Saving or crediting excess energy produced by on-site renewables against consumption.
• D. Metering only during peak hours.

Answer: (C)

Net metering is a billing arrangement where electricity generated on-site by renewable energy systems is used to meet your own demand first, and any excess energy you produce is fed back to the grid with a credit on your bill. This means you offset your consumption with your own production, so you pay only for the net amount of electricity you actually use. The description fits this concept because it emphasizes saving or crediting excess energy from on-site renewables against your consumption.

Exporting all energy to the grid at market price isn’t how net metering typically works, since net metering credits you for the surplus rather than selling it at market price. Measuring energy efficiency of appliances is about how efficiently devices use energy, not about crediting surplus generation. Metering only during peak hours describes time-based or peak-demand metering, not the offsetting of on-site production against consumption.