Energy Consumption

Light bulbs - When you turn on an incandescent light bulb, only 2 percent of the electricity used is turned into light. The rest is wasted as heat.

Electricity needed to power a light bulb - One kilowatt-hour (kWh) equals the amount of electricity needed to power a 100 watt light bulb for 10 hours. — BP

Light bulbs that save energy - Energy saving light bulbs last up to 12 times longer than ordinary light bulbs, and can save up to £100 on electricity over the bulb's lifetime. — BP

Household lighting - About 12 to 15 percent of the electricity used in a home is for lighting. — BP

Household lighting - It is best to use CFL lights in places where they will stay switched on for long periods. Switching CFL bulbs off after only a few minutes of use can reduce their lifespan. . — BP

Wasted Energy - In the UK, the energy wasted as a nation each year is now growing close to the equivalent of powering an additional 7 million non-existent homes. – BP

Lighting - One normal 100 watt light bulb creates a party balloon full of CO2 every half hour that it is on. – BP

Efficient Appliances - If everyone in the UK upgraded their fridges and freezers to Energy Saving Recommended ones, energy wastage would be cut by two thirds, saving nearly £500 million and the equivalent CO2 emissions of 350,000 homes. – BP

Power transmission lines