Energy Efficiency Q&A Round Two

As promised here we are with the second round of question and answers about energy efficiency. Today we will answer questions about rebound effect and negawatt, so if you want to find out the meaning of these terms keep on reading.

What does energy efficiency mean for businesses?

For a business, energy efficiency mostly applies to electrical appliances, heating equipment and everything else powered by electricity. Governments have pushed manufacturers to produce increasingly low-energy devices, such as desktop computers, televisions, refrigerators, freezers and a wide variety of electrical appliances used in each industry.

Simple energy efficiency measures at work include installing loft and wall insulation, draught-sealing windows and doors and replacing incandescent bulbs with efficient, modern CFLs and LED lights.

Cars are covered by a different energy efficiency scheme, which looks similar to the red-to-green EU Energy Label and ranks vehicles on their carbon emissions per kilometre (CO2 g/km). The most efficient modern cars emit less than CO2 100g/km, and all new cars in the EU will be required to – on average across European fleets – emit less than 130g/km by 2015. But this is content for another article, lets get back to energy efficiency.

What’s the rebound effect, and what does it mean for energy efficiency?

In 1865, William Stanley Jevons suggested that improvements in energy efficiency could result in unintended “rebound effects” – such as behavioural changes – that offset the energy savings. For example, greater fuel efficiency in cars may actually lead to motorists driving more frequently and for greater distances, cancelling out the environmental benefits of efficiency.

A report from Cambridge University earlier this year suggested that such rebound effects could cancel out 52% of anticipated energy efficiency savings by 2030.

What’s a negawatt?

The IEA suggests that energy efficiency should effectively be viewed as just another energy source, much like coal or wind power. Following the spirit of the IEA, the US scientist Amory Lovins suggested using the compound “negawatt” (negative-watt) as a unit for expressing the energy waste avoided through energy efficiency.

We have reached the end of the second of our Energy Efficiency Q&A. We would love to have a third round but for this we’ll need your help. Head to our Twitter account or Facebook Page and leave your questions there or if you prefer you can use our comments section below.

If you would like more information on our range of energy broker services or would like to find out how this could benefit your business, simply call our energy team today on 0870 710 7560 or request a call back at time to suit.

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1. Energy Efficiency Q&A Round Two…

   Whats needed is some form of micro generation at source, a lot of people forget tha so much energy is lost through the delivery process. And from power station to final delivery some 50% may of vanished….

   Trackback by socialwebcms.com — August 15, 2010 @ 11:40 am

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