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Saving Energy

With the move to PrepayPower you will be more aware of the amount of electricity you use. If you follow our energy saving tips and use the functions on the keypad to monitor your usage, you should be able to reduce the amount of energy you use.

Kitchen Tips


  • Get yourself a fridge thermometer. 5° Is the perfect temperature for your fridge. Any lower, and you’re wasting money!
  • Make sure not to overpack your fridge either. Some items like tomatoes and eggs don’t need to go in the fridge and can free up space for items that do. Click here for tips on managing your fridge storage.
  • Close the door! Can’t decide what to eat? For every 10-20 seconds you keep the door open it can take 45min for the fridge to cool down to its set temperature
  • Don’t put hot food into the fridge or freezer either. It will have to work harder to get the temperature back down.
  • If you can see a build-up of frost or ice in your fridge/freezer you need to clean it out. These build ups can cause them to be less efficient. So, defrost them regularly!


  • Have a look to see if your dishwasher has a more energy efficient eco cycle that you can use.
  • If you’ve got a day/night meter, then why not put on your dish washer to start after 11pm when you’re paying cheaper rates


  • If your dinner is nearly cooked, then turn off the oven/ring and let the leftover heat finish the work for you.
  • Cover your pots and pans with a lid, this keeps the heat in the pot and stops you wasting energy.
  • Don’t use a bigger pot than you need to.
  • Microwaves and toasters are better than Ovens and grills.
  • If you are using the oven then don’t keep opening the door, you’re just letting the heat out.


  • If you’re only making 1 cup of tea then you don’t need to fill the kettle to the top! The more water in it, the more it’s costing you to boil!

Average Costs for Kitchen Appliances

  • Average Power data taken from a range of sources including here and here. Unit price based on PPPs current standard rate of .1986 per kWh.
Laundry Tips

Washing Machine

  • Clothes can be washed at 30° unless they’re very dirty. In fact, it’s often better for them to be washed at a lower temperature. Only towels and bedclothes need to be washed at higher temperatures. 
  • If you’ve got a day/night meter, then why not put on your washing machine to start after 11pm when you’re paying cheaper rates?
  • Have a look to see if your washing machine has a more energy efficient eco cycle that you can use. 
  • Make sure the machine is full when you put on the wash. It will use the same energy for one pair of jeans as it does for washing a full drum. 

Tumble Driers

  • Is it a nice day outside? Hang the clothes outside in that case! 
  • If you’ve got a day/night meter, then why not put on your tumble dryer to start after 11pm when you’re paying cheaper rates?
  • Make sure to regularly clean out the filters on the tumble dryer. 
  • Have a look to see if your tumble dryer has a more energy efficient eco cycle that you can use. 

Average Costs for Laundry Appliances

Average Power data taken from a range of sources including here and here. Unit price based on PPPs current standard rate of .1986 per kWh.

Bathroom Tips


  • If you’ve an electric shower in your bathroom, then it’s one of the top 5 energy drainers in your house
  • By cutting your shower time from 15 to 5 minutes per day you could save anything up to €90 a year

Hot Water

  • Turn your hot water down. Just 5°C will make a big difference. You should also fit a good quality 80mm (3”) lagging jacket around your water tank. This will insulate the tank, keeping water warmer for longer.

Average Costs for Bathroom Appliances

  • Average Power data taken from a range of sources including here and here. Unit price based on PPPs current standard rate of .1986 per kWh.
Heating & Lighting Tips


  • Just a 1° drop in your temperature setting can lead to a 10% reduction in your heating bill!
  • If your thermostat is set to more than 20° then it’s too high
  • You weren’t born in a barn, close the doors behind you!
  • Make sure that you or your landlord gets your heating system serviced once a year.
  • Feel a draught inside? Plug them when you can, pull the curtains closed, use a draft excluder.

Storage Heaters

  • Click on the "Storage Heater Tips" section below for additional information on how to get the most, and save the most, from your storage heaters


  • Lights can use up to 11% of your annual energy costs.
  • If you’re using older light bulbs swap them out for energy efficient LED or CFL bulbs. CFL bulbs are 80% more efficient than regular bulbs and last significantly longer.
  • Select the lowest wattage bulb you can that will light the space to your requirements. 
  • Turn them off when you leave the room. 
Entertainment & Transport Tips


  • Most TVs are quite energy efficient, but you can still save money by not leaving them on stand-by and turning them off at the mains at night or off fully when not using them.
  • The bigger the TV, the more electricity it uses, do you really need the 52”? 
  • The brighter the screen the more energy you’re using, why not try turning down the brightness a bit?
  • Even the most efficient 60” television is still more expensive to run per year against the lowest rated 32” television. Choosing a smaller television generally means choosing a more efficient television.


  • Charge your phone before you go to bed, don’t leave it charging all night long! 

Computers/Games Consoles

  • Just like your TV, when you're not using them, turn them off fully, and turn them off at the mains at night.
  • The brighter the screen the more energy you’re using, why not try turning down the brightness a bit?
  • Laptops are designed to be more efficient than their desktop big brothers. So why not go for a laptop instead of a bigger desktop P.C.? Better still, go for a tablet for even more energy efficiency!

Electric Scooters

  • Enjoy scooting around town? You could be using up to 200KWH every year charging your scooter, this could be costing you around €35 a year, can you charge the scooter at work during the day? Or what about getting a push bike instead? 

Average Costs for Entertainment Appliances

  • Average Power data taken from a range of sources including here and here. Unit price based on PPPs current standard rate of .1986 per kWh.
Storage Heater Tips

Storage Heaters: What are they?

  • Storage heaters look like radiators, but they aren’t connected to a boiler. Instead, they’re plugged into your home's electricity and, when set up correctly, they use electricity at night when it’s cheaper and use this to store heat in some form of internal bank of clay or ceramic bricks. So, they store up heat at night for gradual release the following day. 
  •  They can be a good option if you have a day/night meter and use electricity to heat your house. When they’re set up correctly, they are going to be using the cheaper night rate to heat your house during the day.

Input - Output Dials

  • Controlling the balance between the input and output will determine how much energy they use; how efficient they are and how good they are at heating your room.
  • Input Dial: This controls how much electricity is absorbed and stored by the heater during the night, ready to warm your home the next day. The higher the input setting the more heat it will store and the more electricity it will use. If you set it too high for the size of the room it has to heat, or for the time of year, you will be wasting money.
  • Output Dial: This is the setting that controls the level of heat released into the room. Typically, this should be set to the lowest possible level during the day when not so much heat is needed, then turned up in the evening to release more heat if it is required. Turning the output dial up will release more heat. The higher the output dial, the more heat will be released. So, this should be at its lowest setting when you go to bed. 

What happens if I set both dials to maximum overnight?

  • You would have maximum heat in the early part of the day, but you’d have a lot less heat in the evening and may need to “boost” the storage heaters, which means using electricity at the higher day rate. 

How do I know if I’m on a day/night Meter?

  • You can see further details on ESB Networks here.
  • Contact us here in PrepayPower and we can help you check too.

When should I change the input settings?

  • The input settings control how much electricity your storage heaters take in at night. 
  • Around September, you should start with a low-middle input setting and gradually increase as winter starts until you reach a level, you’re comfortable with. 
  • In Spring, start to reduce the input level gradually, depending on your comfort levels. 
  • During summer and hopefully warm weather, you should switch off the storage heaters entirely at the wall. 
  • If you do need some heating during the summer, you may only want to charge them every other night and keep the input setting low. 

When should I change the output settings?

  • The output settings control how much heat your storage heaters give out during the day/night. 
  • You always need to make sure that the output dial is turned/timed to the lowest level at night, whatever the time of year. This stops the storage heaters from heating empty rooms and saving you money.
  • During the day, adjust the output to suit your needs, but make sure it’s at its very lowest level if you’re not in the room/house. The more heat you use during the day, the less you’ll have at night. 


  • If you haven’t been warm enough, and the storage heater isn’t releasing any heat towards the end of the day, check the output is turned down to its lowest settings overnight and turn the input control up slightly. Test again the following evening to see if any further adjustment is needed and you’ve reached a comfortable temperature.

Top Tips for Storage Heaters

  • At night, make sure the output control is turned down to the lowest setting.
  • If it is not particularly cold, or you will be out of the house for most of the next day, you don’t need to set the input to maximum because you won’t need to store as much heat.
  • If you’re warm enough, keep the output low during the day, so you have enough heat banked if the temperature drops in the evening.
  • As you can control storage heaters individually, you can choose different heat settings for different rooms, depending on how often or when they are in use.
  • Make sure you have the correct settings on your storage heaters before using any additional heating sources. If you are on a day/night rate, then electricity will be more expensive for you to use during the day. 
  • Keep furniture and curtains away from the heaters to make sure the heat gets into the room and never cover the surface of the heaters.
  • When the weather gets too warm to need any heating, switch off your heaters at the wall.
  • Sign up with PrepayPower! PrepayPower is the perfect option for people who are tired of receiving huge electricity or gas bills based on estimates. We provide electricity and gas services to people who are looking for a smarter way to monitor and pay for electricity and gas.  Click here and we’ll be in touch.


Check Your Usage
Did you know that you can check your usage directly on your meter to see how much you are spending on a daily, weekly and monthly basis? Just press Button 2 on your meter once and it will show you how much you spend yesterday. Press Button 2 twice and it will show you how much you spent last week. Press Button 2 three times and it will show you how much you spent last month.

If you press Button 8, you will see the highest consumption you have had in any 30 minute period over the last 24hrs and when it occured. So using this button, you can see when you used the most electricity during the last 24hrs.

Finally, if you press Button 6 once, you can see how much electricity in Kilowatts you are using at that time, press it twice, and you can see what the current cost of your electricity was in the last hour.

If you have one of our Smart meters, you can also check your usage using our mobile App. Simply open up the app and click on the "Spend" button on the bottom of the screen. You will then see 3 tabs, Saving, Improvement and Hourly. The "Saving" tab shows you your savings with us over the past 7 days. The "Improvement" tab shows you what your spending is like compared against other Prepay Power customers and finally the "Hourly" tab shows you what your usage was like yesterday on an hourly basis and how that compared against other Prepay Power customers. If you don't already have the Prepay Power mobile app, you can download it to your phone by clicking here..
Request A Usage Check
We'd also be happy to talk to you to check your usage and spend with you either through live chat or over the phone. We can carry out a range of checks on your meter with you to look at when your highest spend was over the past day, and look at how much you are spending compared to other Prepay Power customers. To organise a usage check, click on the yellow button on the bottom right hand corner of your screen to start a chat conversation with us. Alternatively, you can call us on 0818 323 920.