Energy saving lightbulbs have become much easier to find over the last few years and anyone with any green pretensions has probably at least got a few in their house. I have used them for some time now and recently replaced the remaining few normal bulbs still in use in my flat.
Much is made of their energy saving qualities, but I began to wonder how much energy they save and consequently what is the reduction in my "carbon footprint".
I found some information on this and it makes quite interesting reading. By replacing a 60W lightbulb that is used for 5 hours per day with a 15W energy saving bulb, you reduce your carbon output from 47kg per year, per bulb to about 12 kg per year, per bulb. Over the 5 year lifespan of the energy saving bulb, this equates to a carbon output of 60kg instead of 175kg per bulb. Multiply this by all the bulbs in your house and that is a large reduction in your annual carbon footprint.
Many people will say that the price of the energy saving bulbs are a deterrant to purchasing them, particularly for poorer people. Well, there's even more good news because over the lifetime of an energy saving bulb, the reduction in energy usage will result in a saving of £37 pounds over its 5 year lifespan. Multiply this by all the bulbs in your house and that is a decent reduction in the electricity bill.
For a student of conservation energy saving lightbulbs are wonderful - help the environment and save money!
Much is made of their energy saving qualities, but I began to wonder how much energy they save and consequently what is the reduction in my "carbon footprint".
I found some information on this and it makes quite interesting reading. By replacing a 60W lightbulb that is used for 5 hours per day with a 15W energy saving bulb, you reduce your carbon output from 47kg per year, per bulb to about 12 kg per year, per bulb. Over the 5 year lifespan of the energy saving bulb, this equates to a carbon output of 60kg instead of 175kg per bulb. Multiply this by all the bulbs in your house and that is a large reduction in your annual carbon footprint.
Many people will say that the price of the energy saving bulbs are a deterrant to purchasing them, particularly for poorer people. Well, there's even more good news because over the lifetime of an energy saving bulb, the reduction in energy usage will result in a saving of £37 pounds over its 5 year lifespan. Multiply this by all the bulbs in your house and that is a decent reduction in the electricity bill.
For a student of conservation energy saving lightbulbs are wonderful - help the environment and save money!
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