Particle energy

Energy saving tips

Together we need to reduce our use of electricity and energy to create a more sustainable society. Here you will find information and tips on how you can save energy.

If we make an effort, we can save our energy.

Energy consultancy

What is one kWh enough for?

Kitchen
Laundry
Bathroom
At home
Devices
One kWh?
Normal consumption
Counseling

Save energy…

... in the kitchen

Photo of person cooking

Use a lid on the saucepan to cook faster. Just a little water in the bottom is enough when boiling eggs, potatoes and vegetables. The food will be cooked by the steam.

Dents and scratches on pots and pans use more energy. Use pots and pans with flat bottoms that fit the size of the hob.

It's smart to use the kettle for more than just tea and coffee. Also use it when you want to boil water for potatoes, eggs or vegetables. Once the water has boiled, just continue cooking on the stove.

Turn off the stove (if you don't have an induction stove) and the oven a while before the food is ready and use the residual heat. If you baked – take the opportunity to cook in the oven afterwards while it is still hot.

You can save energy by pouring the coffee into a thermos when it's ready instead of leaving it in the coffee maker.

It is energy-smart to use the microwave when you want to heat small portions of food.

Should you defrost food from the freezer? Food tastes better if you take it out well in advance and let it defrost in the fridge instead of in the microwave. Also let hot food cool down before putting it in the fridge or freezing it.

In the fridge, +5 degrees is recommended and in the freezer, -18 degrees. Keep an eye on it by inserting a thermometer.

Defrost the freezer regularly, especially if there is ice in it. It is also a good idea to vacuum the back of the fridge and freezer – this reduces both energy consumption and the risk of fire.

A dripping tap can use as much energy and water in one day as a shower, and it's useless. If the tap is left dripping for a whole year, it's the equivalent of filling 100 bathtubs with water – completely unnecessarily!

If you wash dishes for a quarter of an hour under running hot water, you will use 75 liters. Use a basin or sink stopper instead.

If you use a dishwasher: run it at full load and turn off the drying function if possible. Scrape off food residue before washing dishes instead of rinsing them. Use the shortest possible washing program. Soak the dishes for a short while and the food residue will come off much more easily.

Let the laundry hang dry if you're not in a hurry! Use dryers and drying cabinets sparingly – they're big energy thieves!

It takes almost as much energy to dry a pair of socks as it does to fill the entire drying cabinet. Adjust the drying time so that the fan is not on unnecessarily.

It takes almost as much energy to wash a single sweater as it does to wash a full machine. And spin well – it shortens drying time and energy consumption.

Use energy programs if possible. Today's detergents wash just as cleanly at 40 degrees as at 60 degrees. Do not overdose the detergent, but read the package for how much is needed.

…when you wash

Photo of person doing laundry

…in the bathroom

Photo of child brushing teeth

Do you have an electric towel warmer in the bathroom? Don't forget to turn it off when the towels are dry.

Turn off the underfloor heating when it is not needed and avoid carpets and furniture on floors with underfloor heating so that the heat can move freely.

Just by letting the water run while you brush your teeth, six liters of water per minute is wasted unnecessarily.

A dripping tap can use as much energy and water in one day as a shower, and it's useless. If the tap is left dripping for a whole year, it's the equivalent of filling 100 bathtubs with water – completely unnecessarily!

A leaking toilet can waste over 1000 liters of water per day. That's the equivalent of almost seven full bathtubs – per day!

The average Swede uses approximately 200 liters of water per day. A third of this is used to keep ourselves clean and fresh.

Replace them if you feel drafty. If you live in an apartment, you can contact your property manager for help.

A rule of thumb is that lowering the indoor temperature by one degree reduces energy use for heating by 5 percent.

It's smart to divide your home into different zones. For example, it can be nice to have a slightly lower temperature in the bedroom. Feel free to lower the heat even further in rooms you don't use or when you're away.

The heat cannot escape into the room if you place large furniture such as a bed or have long curtains in front of the radiator.

Turn off the lights when you leave the room. Many people think that it takes more energy to turn on the lights than to use them. But that's not true!

Curtains and blinds help keep the cold out and keep the heat in. Report any drafty windows and doors to your landlord if you live in an apartment.

Air out the room with a cross-draft for a few minutes instead of leaving the windows ajar all day. This will quickly bring in fresh air without releasing heat unnecessarily. If you are airing out to cool the bedroom, it is better to turn down the heat on the radiators.

A house is built to have a functioning circulation of air. If valves are closed or clogged, the air exchange stops working effectively, and the level of harmful substances in the air increases.

Do not turn on the stairwell lights unless necessary. And turn them off if they are left on unnecessarily. If the windows in the stairwells are open, close them. Do not use the elevator unless necessary.

…at home

Photo of person sleeping

…with your devices

Photo with graphics on devices

When you turn off computers, televisions, DVD players and game consoles with the remote control, they are not completely turned off. They are in standby mode and then draw energy.

When you turn off computers, televisions, DVD players and game consoles with the remote control, they are not completely turned off. They are in standby mode and then draw energy.

There are inexpensive energy meters available that plug into the wall socket, allowing you to measure the electricity consumption of connected appliances.

Incandescent bulbs are basically a thing of the past, but there are still some halogen bulbs that can use 10 times more energy than the LED alternative. Reduce energy consumption by switching to LED lighting where possible.

As long as the mobile charger is plugged into the socket, it will draw power, even if the mobile phone is unplugged. Have a charging station for all rechargeable toys and games. Use a power strip with a switch so it is easy to turn off.

If you are going to buy a new TV, try to find one with a built-in digital box that can handle the broadcasts you have at home. This way you don't have to have a separate digital box that can use as much electricity as a smaller TV. The Swedish Society for Nature Conservation has listed the most energy-efficient TVs at toptensverige.se. There you will also find energy-smart refrigerators, lamps, washing machines, etc.

What can you do with a kWh?

All electrical appliances are labeled with their power output, and using this you can calculate how much energy they consume.

We measure energy consumption in kWh, which is a measure of an appliance's power multiplied by the time it is used.

A regular washing machine uses about 2000 watts of power when it heats the water. During a washing program, this is perhaps 30 minutes of the time. For one wash, 0,5*2=000 Wh is used, where h stands for hour. 1 Wh is in turn the same as 000 kWh, where k stands for kilo = 1.

Regular bulbs in an Advent candlestick with seven candles have an output of 3 W. The candlestick then draws 21 W when lit and you can use it for 1000/21=48 hours for 1 kWh.

If you switch to LED bulbs instead, they often have an output of 0,4 W. The candlestick then uses 2,8 W when lit, and for 1 kWh you can have it lit for 357 hours. If you look at a device, it often states what its output is. Using our examples, you can calculate the energy consumption per hour yourself.

Good luck!

8 minutes

Induction hob (maximum power 7350 W, all plates on)

10 minutes

Sauna (6000 W)

fifth drying

Tumble dryer, class B

20 minutes

Induction hob (one plate on, 3000 W)

27 minutes

Boil water in kettle

30 minutes

Infrared heating (1800 W)

1 hour

AC/Air conditioning

1 hour

Toast bread

1 hour

Microwave (on full power)

1,4 hours

Vacuum cleaner

1,5 hour

Engine heater

2 hours

Electric stove (500 W)

8 hours

1 m² underfloor heating

1-2 washes

Washing machine 40°

11 hours

Game console

14 hours

LED/LCD TV (on)

14 hours

Sewing machine

15 hours

Charge Laptop

18 hours

Flat iron

25 hours

Incandescent bulb 40 W

26 minutes

Oven (2300 W)

27 minutes

Iron

27 minutes

Hair dryer (2200W)

32 hours

Freezer, class A++

50 cups of coffee

Coffee maker (1500 W)

75 hours

Refrigerator, class A++

184 hours

Shaver

200 hours

Charge Smartphone

1000 hours

LED lamp 1 W

Family drawn on fingers

What is normal electricity usage for a household?

For a family, the standard values ​​per year are 5 kWh for hot water and 000-10 kWh for heating. Here too, there can be big differences. Things that affect this are, for example, how many people are in the household, how big the home is, how warm it is indoors and how well insulated the house is.

It is usually said that normal household electricity consumption in a villa or larger apartment is about 5 kWh/year with an approximate distribution as follows:

  • Washing and drying, approximately 1 kWh

  • Dishwashing, approximately 350 kWh

  • Electrical appliances, approximately 850 kWh

  • Refrigerator, freezer, cool, approximately 1 kWh

  • Cooking, approximately 800 kWh

  • Lighting, approximately 1 kWh

In recent years, more computers and other electronic devices have increased electricity use in homes. It is therefore not unusual to see much higher household electricity consumption than the above.
For a villa or townhouse, there is also energy consumption for heating and hot water. For a family, the standard values ​​per year are 5 kWh for hot water and 000-10 kWh for heating. Here too, there can be big differences. Things that affect this are, for example, how many people are in the household, how big the home is, how warm it is indoors and how well insulated the house is.

If you want to know more and get practical energy-saving advice and tips on what you can do at home, you can get guidance on the Swedish Energy Agency's website.

Energy consultancy

Partille Municipality has entered into a new collaboration with Lerum Municipality regarding energy and climate advice, which means that both municipalities' advice is coordinated in Lerum.
Energy and climate advice is an impartial and free service for households, associations and companies. The advice for Partille municipality has previously been coordinated with the city of Gothenburg, but is now instead coordinated with Lerum municipality. read about tips and news in the energy area from the energy advice on the Lerum municipality website: 
Current tips and advice - private individual | Lerum Municipality

What can I get help with?
The most common questions are about heating, high electricity bills and solar cells. Advisors Peter Rosengren and Radmila Silistarevic also like to talk about things like electric car charging and energy storage. A new area for the advice is energy preparedness.

You can reach the energy advisory service using the contact details below.
E-mail: energyadvice@lerum.se
Phone: 0302-521000.

The Swedish Energy Agency's guides for those who want to improve energy efficiency

There are many ways to use energy more efficiently. The Swedish Energy Agency has simple guides to help you get started with energy efficiency.
The guides are a guide to energy-efficient measures and are aimed at businesses and households.
Some of the measures come with a cost, but there are also tips for simple measures that cost nothing at all. Even simple measures make a big difference for your wallet and the climate.

To the Energy Authority's guides

 

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