Tips for Saving Electricity

The cheap-electricity era is over. Rates across most of the US have climbed 30–50% in the past several years, and in many regions they continue to rise faster than inflation. Small-change advice from 2010 (“unplug your phone charger!”) barely moves the needle. The real savings now come from a short list of higher-impact changes — most of which pay for themselves in a year or two. Here is what actually cuts your electric bill.

Know where your electricity is actually going

Most people blame the wrong things. The old TV is not the problem. The big ones in almost every US household are, in order: heating and cooling (typically 40–50% of the bill), water heating (12–18%), lighting (5–10%), the fridge (4–7%), laundry and dishes (3–6%), and everything else combined (the rest).

That ranking tells you where to spend your effort. Every dollar you chase in the “everything else” category is a dime of real return; every dollar spent making HVAC more efficient earns a quarter.

HVAC: the one change that matters most

A programmable or smart thermostat, set properly, is the single highest-ROI electricity upgrade in most homes. Setting back the temperature 7–10°F for 8 hours a day (overnight in winter, during work hours in summer) cuts HVAC energy use by about 10% — and a wifi smart thermostat automates it so you do not have to remember.

While you are up: change HVAC filters on schedule (a clogged filter makes the system work harder), seal obvious air leaks around windows and doors with weatherstripping, and close curtains on sun-facing windows during summer afternoons. If you are in an older home and have not had an energy audit, many utilities offer them free — it will find the specific leaks and insulation gaps that matter in your house.

Heat pumps quietly outperform everything

If you are replacing a furnace, AC, or water heater, look seriously at heat-pump options. Modern heat pumps are 2–4x more efficient than resistive electric or gas alternatives, work in cold climates that used to be problematic, and qualify for significant federal tax credits under the Inflation Reduction Act. A heat-pump water heater can cut the water-heating portion of your bill by more than half.

Lighting: LEDs everywhere, and be done with it

If you still have incandescent or CFL bulbs anywhere in your house, replacing them with LED bulbs is the easiest and most uniformly profitable electricity upgrade possible. LEDs use 75–85% less energy than incandescent and last 10–25 times longer. A household-wide swap typically pays for itself in under a year.

Skip the “smart bulbs” for most rooms — they are useful in a few specific places but the price premium is hard to justify in a closet or a pantry.

The hot-water surprise

After HVAC, water heating is the biggest electricity use in most houses. The fixes are unglamorous and effective: lower the water heater’s thermostat to 120°F (factory default is often 140°F, which wastes energy and is a scald hazard), wrap an older tank in an insulating blanket, and install low-flow showerheads as covered in the water-saving post.

An insulation blanket for an older tank heater is a $25 upgrade that pays back in one or two winter heating cycles.

Laundry

Cold water for almost every load — modern detergents are designed for it, and around 90% of a washer’s electricity goes to heating the water. Air-dry when weather and space permit. If you must use a dryer, clean the lint filter every load (a clogged filter takes 30%+ longer to dry and is a fire hazard) and clean the duct run annually.

The fridge — one small upgrade, one big decision

Keep the fridge full (a full fridge holds cold better than an empty one), set it to 37–40°F and the freezer to 0°F, and vacuum the coils once a year. If your refrigerator is 15+ years old, replacing it with an Energy Star model will typically save $100–$200 a year in electricity alone, which meaningfully shortens the payback.

Phantom loads: real but smaller than you think

“Vampire” loads — devices drawing power while “off” — are real, especially from TVs, game consoles, cable boxes, and older electronics. Grouping them on a smart power strip that cuts power to peripherals when the main device is off cleans this up with a single plug. The total savings are modest (usually $50–$100/year), but worth the one-time setup.

Time-of-use rates change the game

Many utilities now offer time-of-use pricing, where electricity during peak hours (typically 4–9pm) costs 2–4x more than off-peak. If your utility offers this, and you can shift laundry, dishwashing, and EV charging to overnight or weekend mornings, the savings are immediate. Check your utility’s rate structures; a lot of households are on flat-rate plans by default who would save meaningfully on a time-of-use plan.

Solar is a much longer conversation

Rooftop solar makes sense for some households and not others — it depends on your roof orientation, your electric rate, your state’s net-metering policy, and how long you plan to stay in the house. If you are interested, get two or three honest quotes and run the payback math yourself; the industry sales pitch always looks rosier than the real numbers.

Stack the small ones

None of these items single-handedly cuts your bill in half. Together — smart thermostat, LED lighting, weatherstripping, lower water heater setpoint, smart power strips, cold-water laundry — a typical household can cut electricity use by 20–30% in the first year. That is real money, on an upfront investment of a few hundred dollars. The cheapest-electricity era is over, but the cheapest-to-run home is still a solved problem.