Flip the Switch: Why Home Energy Use Matters

Here goes!

Leaving your charger plugged in, running the AC a little longer—those small choices add up. Residential energy use may feel personal, but it’s a big part of the global energy story.

How Much Do Homes Use?

In the U.S., buildings account for about 30% of energy use and the same share of CO₂ emissions (EIA). Globally, homes use about one-quarter of electricity (IEA).

Most of this goes to heating, cooling, water heating, and appliances. But here’s the surprise: devices that sit “off” or on standby still draw power. This phantom load can make up to 32% of a home’s electricity use (Home Idle Load, NRDC).

Why Does It Matter?

Most electricity still comes from fossil fuels in the USA (and most of the world). That means greenhouse gases: the average U.S. household’s electricity use emits about 7.5 tons of CO₂ a year (EPA). Energy production also pollutes water, disrupts ecosystems, and spreads infrastructure through natural habitats. Every kilowatt-hour saved reduces that impact.

What Can We Do?

The good news: simple changes cut home energy use by 20–30% without losing comfort (IEA). We can start with:

• Switching to LED bulbs (use 75% less energy; DOE)

• Unplugging chargers and game consoles, or using smart power strips

• Sealing drafts and improving insulation

• Installing a smart thermostat for 10–15% savings

Call to Action

Pick one change this week—like unplugging your charger or swapping a bulb—and track your family’s energy use. Each small step adds up to lower bills and a cleaner planet.