Saving on Utilities: Habits That Reduce Monthly Energy Bills

Smart Money Moves Editorial Team Staff Writer · Mar 20, 2023 · 7 min read

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Practical, no-cost and low-cost habits that can meaningfully lower electricity, gas, and water bills in a typical US household.

Key Takeaways

Heating and cooling typically account for nearly half of a US household's annual energy costs.
Many effective energy-saving habits cost nothing to implement beyond a behavioral change.
Water heating is the second-largest home energy expense — reducing hot water use pays off quickly.
Phantom load (devices drawing power while idle) can account for up to 10% of electricity use.
Combining several small habits compounds savings significantly over a 12-month period.

Why Utility Bills Deserve a Closer Look

For most US households, utilities — electricity, natural gas, and water — represent one of the largest fixed monthly expenses outside of housing and food. According to the U.S. Energy Information Administration (EIA), the average American household spends over $2,000 per year on home energy alone. That figure climbs higher in regions with extreme summers or winters.

Unlike groceries or entertainment, utility bills can feel immovable. But a significant portion of that spending is driven by everyday habits rather than unavoidable baseline costs. Shifting those habits — often at zero upfront cost — is one of the most accessible ways for budget-conscious households to free up meaningful cash each month.

This article focuses on durable, no-gimmick practices grounded in how energy and water are actually consumed in a typical home. If you're already working to trim other recurring expenses, consider pairing these strategies with an audit of recurring subscriptions that quietly drain household budgets for a fuller picture of monthly outflows.

Proven Habits That Shrink Energy and Water Bills

The practices below are organized from highest to lowest typical impact. None require a contractor or capital investment to start — though some low-cost upgrades amplify results significantly.

Adjust your thermostat by 7–10°F when sleeping or away from home

Heating and cooling account for about 43% of a typical US household's energy bill, according to the U.S. Department of Energy. Even modest temperature setbacks during the 8 hours you're asleep or at work can reduce HVAC energy use noticeably over a month. A programmable or smart thermostat automates this without daily effort.

Example: Setting the thermostat to 68°F during waking hours and 60°F overnight during winter can reduce heating costs by a meaningful percentage compared to maintaining a steady 72°F all day.

Eliminate phantom load by unplugging idle electronics or using smart power strips

Devices like televisions, game consoles, and chargers draw power even when switched off — a phenomenon called phantom load or standby power. The Lawrence Berkeley National Laboratory estimates this accounts for roughly 5–10% of residential electricity use. Cutting it costs nothing beyond awareness.

Example: Plugging your entertainment center into a smart power strip and switching it off at night eliminates standby draw from the TV, cable box, and streaming device simultaneously.

Run dishwashers and washing machines only with full loads, and use cold water cycles

Appliances use roughly the same energy per cycle regardless of load size. The U.S. Department of Energy notes that about 90% of a washing machine's energy goes toward heating water. Switching to cold-water cycles and maximizing load fullness reduces both electricity and water heating costs.

Example: A household that runs the dishwasher five times a week at full loads instead of seven times at partial loads cuts the same number of cycles — and the associated water and energy costs — by nearly 30%.

Fix dripping faucets and running toilets promptly

A single faucet dripping once per second wastes more than 3,000 gallons of water per year, according to the EPA's WaterSense program. A running toilet can waste far more. Both are typically cheap to fix with a basic washer or flapper replacement, making this one of the highest-return low-cost actions available.

Example: Replacing a worn toilet flapper — a part that typically costs under $10 at a hardware store — can stop a running toilet that was silently adding $50–$100 to a quarterly water bill.

Lower your water heater temperature to 120°F

Many water heaters ship from manufacturers set to 140°F, which wastes energy and poses a scalding risk. The U.S. Department of Energy recommends 120°F for most households — sufficient for daily use, significantly more efficient, and safer for children and older adults in the home.

Example: A family that dials down from 140°F to 120°F can cut water heating costs by 4–22%, depending on usage patterns, with no change in shower or dishwasher performance.

Use natural light and ventilation strategically before reaching for switches or thermostats

Opening blinds to let in winter sunlight provides passive solar heat at no cost. In summer, closing blinds on south- and west-facing windows during peak afternoon hours reduces cooling load. Cross-ventilating with windows in the evening can allow the AC to stay off longer into the night.

Example: A household in a Southern state that closes west-facing blinds from 2–6 PM during summer months measurably reduces afternoon cooling demand, cutting the time the AC runs at its peak rate.

Quick Actions You Can Take Today

Not every change requires planning. Several high-impact behaviors can be adopted immediately, with savings showing up on the very next billing cycle.

medium Walk through your home right now and unplug all chargers, small appliances, and electronics that aren't actively in use.

high Check your water heater's temperature dial — if it's above 120°F, turn it down to that setting today.

medium Switch any remaining incandescent bulbs in high-use rooms (kitchen, living room) to LEDs, which use about 75% less energy according to the U.S. Department of Energy.

high Put a note on your thermostat tonight to remind yourself to drop the temperature before bed — then set a recurring alarm until it becomes automatic.

medium Check every faucet and toilet in your home for leaks; listen for the hiss of a running toilet flapper or feel for a dripping tap.

Once you've stabilized lower utility bills, consider redirecting the difference into savings automatically. Our guide on automating your savings explains how to put that recovered money to work without thinking about it each month.

Putting It All Together

No single habit here will transform a utility bill overnight. The power is in combining several changes so that savings layer on top of each other. A household that adjusts thermostat schedules, eliminates phantom load, runs full dishwasher loads, and fixes a dripping faucet could realistically reduce energy and water costs by 15–25%, depending on current habits and local rates — though individual results will vary.

43%

Share of home energy used for heating and cooling

According to the U.S. Department of Energy, HVAC is by far the largest energy expense in a typical American home.

~$2,000+

Average annual household energy spending

The U.S. Energy Information Administration estimates most American households spend more than $2,000 per year on residential energy.

3,000 gal

Water wasted per year by one dripping faucet

The EPA's WaterSense program estimates a single faucet dripping once per second wastes over 3,000 gallons annually.

Tracking your bills month-over-month is the best way to measure progress. Many utility providers offer free online dashboards that break down usage by category. Use those tools to identify where you're winning and where more attention is needed. Building this habit of tracking fits naturally into a broader household savings plan — see our complete guide to building a household savings plan for a structured framework.

This article is for general informational purposes only and does not constitute financial or energy-efficiency advice tailored to your individual circumstances. Actual savings will vary based on household size, local utility rates, climate, and existing appliances. Consult a licensed energy auditor or financial professional for personalized guidance.

Smart Money Moves Editorial Team

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