Category Archives: Information

What Devices In Our Home Use The Most Energy

We found this list on-line today and it advises you which uses more energy in standby mode, a computer or a phone charger etc etc.  There is some supprises in the list.  This of cause is based on UK energy use and is in UK pounds.

The green electricity company has compiled a list of the worst household offenders and the results may come as a surprise to many of you.

Annual energy usage while on standby:

Wireless Router (e.g. BT Hub) – £21.92

Printer (Laser) – £18.26

Set-top (Satellite) – £18.26

Amplifier – £12.18

Compact Hi-Fi – £12.18

iPad charger – £12.18

Nintendo Wii – £12.18

Set-top box (Freeview) – £7.31

Alarm Clock – £6.09

Microsoft Xbox 360 – £6.09

Modem – £6.09

Sony PlayStation 3 – £6.09

Air freshener plug-in – £4.87

CD player / Tuner – £4.87

Television (Plasma) – £4.87

Video Player – £4.87

Inkjet printer – £4.26

Desktop PC – £3.65

Nintendo DS – £3.65

Oven (Electric) – £3.65

Microwave – £3.04

Television (CRT & LCD) – £3.04

Mobile phone charger – £2.44

PC monitor (CRT) – £2.44

Electric toothbrush – £1.22

Childs night light – £0.73

Part P Third Party Certification

New Part P third party certification schemes for electrical installation work in dwellings were introduced in England on 6th April 2014. The bodies that have been authorised to operate schemes are listed on the DCLG website at

http://www.gov.uk/third-party-certification-schemes-for-domestic-electrical-work

If you want to know more about this scheme, what it is and how it works there is a great article on the IET website we suggest you read. Click here to read the full article.

How do I convert Watts to Amps ?

Watts and amps are both measurements that involve the consumption of electricity, and they measure two different things. A watt is a measurement of power conversion, whereas amps measure the amount of electricity passing a point in a given amount of time. They can be converted, but only if you also know the voltage.

1 – Determine the voltage. You can do the math if you know either watts or amps, but you need the voltage to do it. North American wall outlets operate at 110 volts, whereas those in Europe vary from 210 to 240.

2 – Use a calculator, or a pen and paper if you do not have one.

3 – Convert watts to amps using this equation: amps = watts divided by volts. An example is that a typical 60 watt light bulb on the standard 110 U.S. voltage operates at 0.54 amps (60/110 = amps). The same bulb on European voltage is .025 amps (60/240 = amps).

4 – Convert amps to watts by reversing the equation: amps multiplied by volts = watts. A device operating on 3 amps at 110 volts consumes 330 watts (3 x 110 = watts).