Residential consumers have very similar usage patterns, so that a ________ can cover the fixed costs without much error.

• A. location charge
• B. minimum charge
• C. interruptible power charge
• D. supply voltage charge

Answer: (B)

Fixed costs of delivering electricity—things like meters, customer service, billing, and the distribution network—don’t vary with how much electricity a home uses in a month. To ensure these fixed costs are recovered across many customers, utilities implement a fixed monthly charge, known as a minimum charge. Because residential usage patterns tend to be similar, this fixed charge can cover the base cost with only small error, providing revenue stability without needing to gauge each household’s exact usage every month. The other charges don’t align with recovering fixed costs across residential customers: a location charge depends on where the customer is, an interruptible power charge applies to customers who agree to reduce consumption during peak times, and a supply voltage charge relates to the service voltage rather than recovering fixed infrastructure costs.