A new year is a great time for a fresh start. If you are looking for a practical way to kick off energy savings in 2026, winterizing your home is one of the smartest places to begin. It can help you stay warm and comfortable, lower your energy costs, and reduce energy waste during one of the most expensive seasons of the year.
The good news is you do not need a big renovation to make a difference. Small changes can add up, whether you own or rent your home. Here is a simple guide to help you winterize your space, save energy this winter, and start the year feeling more in control of your energy use.
Why energy bills are higher in winter
If your electricity bill tends to rise during the winter, you are not alone. A few common factors can drive higher energy use this time of year:
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- Heating runs more often. Even in mild California winters, chilly mornings and colder nights can lead to more heating.
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- Shorter days mean more lighting. When it gets dark earlier, lights are on longer.
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- Hot water use often increases. Think longer showers, more laundry, and holiday cleanup.
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- Chilly drafts make your home heating system work harder. Small gaps around windows and doors can let warm air escape while allowing cool air in, forcing heaters to run longer.
Understanding what drives winter energy use makes it easier to focus on simple changes that can have the biggest impact.
Bonus tip
Quick winterizing steps you can do today
Here are some simple ways to save energy during the winter. They cost little to nothing and make your home more comfortable.
Use sunlight during the day; block out the cold at night
Open curtains on sunny windows during the day to let natural warmth in. Close them in the evening to keep heat inside.
Seal drafts around doors & windows
If you feel cold air coming in around the edges of doors or windows, add a draft stopper or removable weatherstripping. Even a small gap can make a big difference.
Set your thermostat to support comfort & savings
A comfortable home does not require high temperatures. Try lowering your thermostat slightly and adding a layer, especially at night.
Bonus tip
Winterizing for renters: Comfort upgrades you can take with you
Renters can winterize their spaces, too. Many of the best energy-saving changes do not require permanent upgrades.
Here are some renter-friendly ways to stay warm and lower your electricity bill:
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- Removable weatherstripping for doors and windows
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- Window insulation film to reduce cold drafts
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- Thermal curtains to keep heat in at night
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- LED bulbs to reduce lighting costs during darker winter days
- Smart power strips to reduce energy waste from electronics
Bonus tip
Winterizing upgrades for homeowners to get bigger savings over time
If you own your home, winter is a great time to think about upgrades that improve comfort year after year. You do not have to make several changes all at the same time. Even one upgrade can make a big difference.
Upgrade to a smart thermostat
A smart thermostat can help you automatically reduce heating when you are asleep or away, without having to remember to adjust it every day.
Consider efficient electric upgrades
If you are planning to replace an older gas furnace, water heater, or stove, efficient electric options can help reduce energy use and improve indoor air quality. Examples include:
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- Heat pumps for heating and cooling
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- Heat pump water heaters
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- Induction cooktops
Bonus tip
Use our Rebate Finder to explore incentives that can make home upgrades more affordable.
A simple clean energy upgrade: ECO100
As a Peninsula Clean Energy customer, your home is already powered by 100% clean electricity. If you want to take your clean energy impact a step further, you can choose ECO100, which is 100% renewable electricity.
It’s a simple upgrade that does not require any new equipment or lifestyle changes.
Start 2026 with a more comfortable, efficient home
Winterizing your home is one of the most practical ways to lower winter energy costs and improve comfort at the same time. Start with a few quick wins, try renter-friendly improvements if you rent, and explore bigger upgrades when you are ready.