Appliance Power Usage Table
If you are looking to supply an area with Solar Power Energy and are wondering how much power you need, what sized solar panel to get and which appliances you can run on a particular set up, then you have come to the right place. We have taken average power consumption figures of popular appliances and listed them in the table below. This table shows many usefula appliances you may wish to power with a solar power supply, along with the power they use in Watts.
The following information is to be used as a rough guide. As every appliance varies accross makes and brands it is impossible to provide exact figures. As a result, we offer this information to allow you to estimate your intended power usage for your Solar Powered setup. If you would like more precise figures, then please check the manual and power information plates of your appliances themselves. This will give you a more accurate figure.
|Coffee Pot – 200||Laptop Computer – 20-50||Weeder – 500|
|Coffee Maker – 800||Desktop Computer – 80 – 150||Hedge Trimmer – 450|
|Toaster – 800-1500||Printer – 100||1/4″ Drill – 250|
|Popcorn Popper – 250||Scanner – 14||1/2″ Drill – 750|
|Blender – 300||Shredder – 100||1″ Drill – 1000|
|Microwave – 600-1500||Hard Drive – 15||8 1/4″ Circ. Saw – 1400|
|Waffle Iron – 1200||Typewriter – 80-200||9″ Disc Sander – 1200|
|Hot plate – 1200||Ceiling Fan – 10-50||3″ Belt Sander – 1000|
|Frying Pan – 1200||Table Fan – 10-25 12″||Chain Saw – 1100|
|Dishwasher – 1200-1500||Electric Clock – 3||14″ Band Saw – 1100|
|Gbg. Disposal – 450||Answering Machine – 10||7 1/4″ Circ. Saw – 900|
|Fridge Freezer – 200-400||Electric Pencil Sharpener – 100||Electric Mower (n/a) – 1500|
|Food Blender – 350||Wireless Router – 7||AC Grinder 1/2 hp – 1080|
|Electric Whisk – 120|
Home Media (w)
|Handheld Vaccuum – 100||TV (47″ Plasma) – 250-450||Clock Radio – 1|
|Upright Vaccuum – 200-700||TV (47″ LCD) – 125-200||Electric Blanket – 200|
|Iron – 1000||TV (47″ LED) – 90-150||Portable Heater- 1500|
|Sewing Machine – 100||CD Player – 35||Garage Door Opener – 350|
|Washing Machine – 300-500||Portable Stereo – 10-30||Waterbed – 400|
|Clothes Dryer – 4000||Satelite – 30||Car Stereo – 8|
|Air Conditioner (n/a)…||DVD Player – 60||Shaver – 15|
|Air Con Room – 1000||Projector – 120-200||Guitar Amplifier – 40|
|Hair Dryer – 1000||DVR – 33||Synthezier – 30|
|Hair Straighteners – 80||HI-FI – 30||Games Console – 190|
|Hair Curlers – 750||VCR – 30||Cinema Amplifier – 800|
How To Calculate Power Requirements
Make a note of up to 5 appliances from the above table, then next to each appliance, note how many hours you intend to use that item for each day. Now multiply the Watts by the hours for each appliance and then add all of these totals together. This will give you your total Watts Per Hour requirement from your Solar Power Supply. An example is shown below.
Hours of Use
(Watts x Hours)
|Total Watts Per Hour Required||194|
Now, with this Total of 194 W/hr we find it safest to multiply it by 1.2, in order to account for up to 20% loss of power in the system, just to account for any unforseen circumstances and natural system losses. It will also provide a buffer of extra charge in the battery.
Final Power Requirement
|194||x 1.2||233 W/hr|
So Which Solar Power Kit Do I Need?
The average number of useful hours of daylight each day in the UK varies throughout the season. This will have an impact on how much power your Solar Panel will capture and store in your Solar Power Supply. As a result, it is worth thinking about when you are most likely to use the Solar Power Supply and stock up accordingly. The table below gives the average daylight hours which will charge your solar panel. If you would like a yearly average, use the figure of 4.5 Hours as a rough guide, but only if you are intending on using this set up during the dark winter months, otherwise this will give a misleadingly high result.
|Month||Average Peak Sun Hours Per MonthUK Met Office Data 2000 – 2010|
|Yearly Average||4.5 Hours|
With the table above, with each month you intend on using your Solar Power Supply, divide your Final Power Requirement from above by the number of hours of daylight for that month. This will give you the Wattage of the Solar Power Supply you will need to run your appliances for the required time that month. Choose a Solar Power Kit with a Wattaghe as close to the result you have calculated. Usually, we would advise rounding up to the nearest Power Supply, to ensure that you are able to use your appliances for the intended amount of time.
Solar Power Kit Required
|March||4 Hrs||233 W/hr / 4Hrs||60 Watts|
|June||7 Hrs||233 W/hr / 7Hrs||30 Watts|
|August||6 Hrs||233 W/hr / 6Hrs||40 Watts|
So, In our example above, we would be looking for a Solar Power Set Up which can provide 50-60 Watts in order to run our example appliances. Our 50W Solar Panels should do fine for this.
Our Solar Panels can be Found Here:
Our Solar Power Kits Can Be Found Here:
- Geo 1 – Mains Free Solar Lighting Kit – 5 Watt
- Geo 2 – Mains Free Solar Lighting Kit – 10 Watt
- Geo 3 – Mains Free Solar Lighting Kit – 20 Watt
- Geo 4 – Mains Free Solar Lighting Kit – 30 Watt