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97% of climate scientists agree that global warming is a man-made phenomenon¹. Our planet is reaching a critical tipping point—unless we curb our greenhouse gases, there’ll be appalling consequences for our species.
This article is part of a comprehensive guide on what you can do to help fight global warming. Millions of people can make a huge impact, but we must act right now.
This piece focuses on what you can do to save energy at home.
Hands off the thermostat
Cooling and heating is responsible for the most energy usage in your home—a whopping 47%⁶. Feeling cold? Put some warm clothes on and cocoon yourself in a cozy blanket. Feeling hot? Use a desktop or ceiling fan to cool yourself instead of power-hungry air-conditioning units.
If you must use your home’s heating/cooling, consider setting a less expensive temperature. Even a single degree can save you between 1–3% on your energy bill⁷, and reduce the amount of carbon that’s released into the atmosphere.
“The greenest Watt is the one that doesn’t have to be produced.”
— Eenovators Limited
Get a programmable thermostat
It’s absolutely crazy to keep your heating/cooling system running when there’s nobody home. Installing a programmable thermostat that allows you to activate the system for specific time periods can save a hell of a lot of energy. Even better, modern thermostats such as Nest learns from your behaviour, and eventually maintains your preferred temperatures all by itself. Hive home is another good option.
Get a professional energy audit
A professional energy audit can help to identify areas of your home that can be improved, in order to save energy. Typical suggestions from an auditor might be installing roof insulation, or fixing “leaks” for draughty doors and windows, but there’s much more. An energy audit could result in a saving of between 5–30%⁸. Usually, the initial cost of the audit is quickly recouped.
You may even have access to free energy audits—a quick Google search will reveal.
Switch to a green energy plan
Many energy companies now offer “green” energy plans, which guarantees that your power is coming from renewable sources. You can generally opt for a percentage of green energy, or 100%.
You’ll pay a premium (roughly 15% for completely green energy²), but if you can afford it, you’ll be helping to save our planet by reducing the burning of filthy fossil fuels, in addition to supporting the renewable energy sector.
Switch off outlets
Energy used by appliances in standby-mode can add up to 5% of your annual bill, or 1% percent of global CO2 emissions³. That’s a stupendous amount of CO2 released into the atmosphere, for practically nothing.
Get into the habit of turning off your power outlets. If they’re difficult to reach, consider purchasing a power board with its own on/off switch, to make things easier.
Similarly, if you aren’t using something, it has no reason to be turned on. This includes lights, your TV, fans, your laptop, and anything else that uses power.
Switch to energy efficient, LED light bulbs
LED light bulbs use between 1/3 to 1/30th of regular incandescent or CFL bulbs, are much more durable due to their lack of filament, and can last up to 40 times longer⁴.
If everyone in the US switched to these bulbs, 40 new power plants would no longer be required⁴.
Don’t use your dryer
Clothes dryers are one of the biggest energy hogs in our homes. If you’re lacking space, consider getting yourself a foldaway clothes horse instead.
If you must use the dryer, purchase yourself some dryer balls. They decrease drying time by 30–50%, and remove some of the wrinkles from your clothing⁵.
After each cycle, removing the lint from the filter is another good way to save power.
Purchase energy efficient appliances
Make energy efficiency your biggest priority when purchasing appliances—look for products that have a good Energy Star rating. You could save yourself thousands of dollars in the long-run, and reduce your carbon emissions massively.
Try the “dollar-bill” test
Old fridges and freezers have a tendency to leak air — if a bill shut in the door is easy to pull out, you should consider replacing the gaskets. Even better, purchase a newer energy efficient appliance.
Recycle your old appliances
Some appliances can be incredibly harmful to the environment if not properly recycled, particularly refrigerators that contain HFC, a gas that is 1,000 times worse for global warming than carbon dioxide⁹. Older fridges can contain CFC, a chemical banned years ago for its similarly devastating warming effects.
When purchasing a new appliance, many retailers offer a recycling service for your old one. Alternatively, a quick Google search will reveal your other options.
Use energy saving modes
Many modern household items have an eco-friendly setting, which reduces their energy usage. This includes your TV, computer, washing machine, dishwasher, air-conditioning unit, and much more. Have a quick look at the item’s interface for an option that identifies eco-friendly mode, or dust off the instructions. Your power bills will drop.
Turn down the brightness
Your phone doesn’t need to light up the entire room when its turned on—reduce its brightness and save energy. Using your phone and laptop in bed has also shown to confuse your brain into thinking that it’s daytime, curbing the chemical that regulates sleep (melatonin) and damaging the quality of your slumber¹⁰.
The same goes for your TV and desktop computer—turning down the brightness a little can reduce your carbon footprint and help to save our planet.
Turn off your laptop
It’s easy to just close the lid of your laptop instead of shutting down, but it’ll continue to use valuable power. Turning off your laptop and computer will reduce greenhouse gases, and save you money. It’ll also extend the lifetime of the device.
Reduce your water heater’s temperature
The default setting for water heaters is usually 140°F (60°C) , but the US department of energy recommends setting the temperature to 120°F (49°C). This can save you between 6–10% on your energy bill¹³—no small amount.
Get a heat-pump water heater
Heat pump technology is highly efficient—it can reduce your water heating energy by more than 50%¹¹. Though initially expensive, you’ll eventually save on your energy bills.
Request a smart meter
In-home smart meters allow you to monitor how much energy you’re using, on a hourly or daily basis. These are fantastic at giving you a better idea of how much energy your appliances are using, e.g. discovering how much it costs you to air-condition your lounge during a particularly warm weekend.
Smart meters also submit their energy readings electronically, which means that a meter reader won’t need to make any more trips to your home in their dirty diesel van.
Wash your clothes in cold water
Modern washers are well-designed for cold water washing, effectively removing stains such as grass and makeup. Warmer water can even make certain stains (such as blood and sweat) worse.
Between 75–90% of the energy used in a washing cycle is for heating the water¹², creating a massive saving when washing on cold.
Get a water efficient shower head
Water efficient shower heads can save up to 50% of your water usage, making them incredibly economical, and excellent for the environment. Modern shower heads are much better at dispersing water, making them just as effective as their inefficient predecessors.
Take cooler showers
On the topic of showers, you might want to consider turning down the temperature in order to save energy. Colder showers have a ton of benefits—increased alertness, stimulated weight loss, better muscle recovery, and improved circulation to name a few¹⁴.
Get solar panels
Why buy energy when you can get it for free? Solar panels are becoming more affordable, and any excess power that you generate can be sold back to energy companies, giving you an additional source of income.
Solar panels are low maintenance — there’s no moving parts, and they only need cleaning twice a year. They usually come with a lengthy warranty period too: 20–25 years.
Ask for e-billing
Many companies now offer an e-billing option, sending your bills via email instead of wasting paper. More trees means more harmful carbon dioxide being converted into oxygen for us to breathe.
Clean your furnace’s air filter
If you have a furnace in your home, a dirty air filter will slow airflow and make the system work harder. Cleaning the filter can reduce your energy costs.
Get yourself a rainwater tank
If you have a garden, you might consider purchasing a rainwater tank. You can use the water in your washing machine, your toilet, your garden hose/sprinklers, to wash your car, and much more. This free supply of water might end up saving you a ton of money.
Plant a tree
A single tree absorbs a ton of carbon dioxide in its lifetime¹⁵. If you have a garden, planting a tree is a great thing to do for the environment. They look lovely too.
Compost your old food
Composting your old food provides you with a natural, valuable source of fertiliser for your plants. It reduces the need to transport the waste, and prevents methane gas creation after being dumped in landfill. Methane gas is 21 times more harmful than CO2¹⁶.
There’s lots of compost solutions available, for all different types of homes.
Boil the right amount of water
There’s no point in filling the kettle or the saucepan to the top — it’s a complete waste of energy. Just boil the amount of water that you actually need.
Buy a reusable water bottle
Less plastic means less pollution, and fewer nasty, carcinogenic chemicals leaking into your body. There’s tons of charity-supporting water bottle companies out there, with awesome designs.
Recycle your trash
An obvious suggestion. If you’re not already recycling, shame on you.
There’s a hell of a lot we can do to save energy in our homes. Every little action counts, and when multiplied by millions of people, adds up to a huge difference.
- Skeptical Science, The 97% Consensus on Global Warming
- Harrison Astbury, Everything You Need to Know About Green Power
- Arizona State University, Vampire Energy
- Earth Easy, Energy Efficient Lighting
- David Suzuki, Wool dryer balls shrink drying time
- Jeff Desjardins, What Uses the Most Energy in Your Home?
- Welklin, Set Up A Few Degrees For Significant Savings
- Energy Sage, Should You Get an Energy Audit?
- Matthew L. Wald, When Refrigerators Warm the Planet
- Cathy Johnson, How technology use messes with your sleep and what you can do about it
- Pierce Delforge, Christina Swanson, Eric Weiner, Very Cool: Heat Pump Water Heaters Save Energy and Money
- Ge Appliances, 6 Reasons to Cold-Water Wash—and 3 Not to
- Trent Hamm, Turn Down Your Water Heater (155/365)
- Lizette Borreli, Benefits of Cold Showers: 7 Reasons Why Taking Cool Showers Is Good For Your Health
- NRDC, How You Can Help Fight Climate Change
- Justin Quigley, Why Should I Compost?