The Smart Meter: Energy Investigation
Seabrook nuclear (56 percent of in-state generation) and hydroelectric generation (8 percent) power New Hampshire's grid, creating some of the nation's lowest-carbon electricity. The state's seventh-highest retail electricity price—20.61 cents per kilowatt-hour—makes device efficiency a directly measurable household concern. Building a working smart meter is the natural entry point because students can measure and cost out exactly what each device consumes, turning abstract efficiency into concrete savings.
Mission spotlight
Coding the Smart Meter
Students can code a micro:bit to calculate watts and watt-hours for any device, transforming raw sensor data into concrete measurements of electricity consumption. In New Hampshire, where retail electricity costs 20.61 cents per kilowatt-hour—the seventh-highest price in the nation—those measurements reveal direct dollar values for household power use. By connecting their code to real electricity costs, students turn abstract data into a practical tool for finding efficiency savings in their own homes and schools.
Included in LEA curriculum