What does a demand meter measure?

A demand meter is specifically designed to measure the maximum power usage over a certain period, usually defined by a billing cycle. It captures the highest amount of power drawn by a facility or system within a specified timeframe, which is essential for utility companies to understand peak demand periods. This peak demand information allows utilities to manage resources effectively and plan for supply, as high demand can impact the overall grid and require additional generation resources.

This measurement differs from the others; for instance, voltage levels are typically measured by voltmeters, while electricity usage over time is monitored by energy meters, usually in kilowatt-hours (kWh). Instantaneous power consumption is related to real-time power use, often tracked by other types of meters like a wattmeter. Understanding the specifics of what a demand meter measures helps in energy management strategies and controlling costs associated with energy consumption peaks.