School energy audit

Students examine how much electricity the classroom consumes and recommend energy-saving habits.

Steps

1. We catalog appliances in the classroom and record their power ratings from label plates.
2. We compute energy usage in kWh based on typical operating hours.
3. We measure phantom load in standby mode using a plug-in wattmeter.
4. We compile an energy-saving action list for the school administration.

Tip: A plug-in socket energy meter is inexpensive and doubles as an engaging physics tool.

Materials needed

• Plug-in power meter / wattmeter (1 piece)