How to heat a cup of tea post apocalypse (and other energy efficiency facts)


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We’re still in a penny-pinching economic climate, so the amount of energy we use in our home is a big concern. Here are some of the most fascinating facts we discovered!

  • The word ‘??energy’? comes from the Greek energeia, meaning operation, activity.

  • If the average kettle holds 1.5 pints, you’re spending around 2.5p every time you boil a full kettle.

  • If you want to wash your clothes, on the other hand, a one hour wash will set you back roughly 50p.

  • A 10 minute shower can cost upwards of 31p, whilst a 150 litre bath costs up to 90p.

  • A report released by the Energy Saving Trust, Department for Environment, Food and Rural Affairs (DEFRA) and the Department of Energy and Climate Change (DECC) found that the average household was wasting between £50 and £80 of their annual £530 electricity bill by leaving appliances on standby.

  • A heavy coat of dust on a light bulb can block out up to half of its light.

  • Only 10% of energy in a light bulb is used to create light, whilst 90% creates heat. Compact fluorescent light bulbs (CFLs), on the other hand, use about 80% less electricity than conventional bulbs and last up to 12 times as long.

  • One of the newest energy sources is poo (cows’, not ours). In a process called anaerobic digestion, bacteria breaks down the manure in tanks, producing methane gas. The methane is then burned to generate electricity and heat that can be used right on the farm. Nifty!

  • Google accounts for roughly 0.013% of the world’s energy use, using enough energy to continuously power 200,000 homes.

  • Enough sunlight reaches the earth’s surface each minute to satisfy the world’s energy demands for an entire year, meaning if we all invest in solar panels, we’ll be hunky dory when the apocalypse comes!

  • If a person yelled for 8 years, 7 months and 6 days, he or she would produce enough energy to heat a cup of coffee. So if you don’t invest in solar panels before the apocalypse, there’s that.