First cities go dark for Earth Hour – CNN.com

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Digital Dim Sum » Can virtualization save the real world?

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Next big green thing: LED lighting

In Switzerland, Migros is the first supermarket to switch to 100% LED lighting.

The energy saving from LED is currently around 90% of Compact Fluorescent Lamp, which in term is about 8 times more efficient than traditional incandescent light bulb, i.e. LED is about 80 times more efficient than regular light bulb.

When we move to the new apartment this week, I am going to experiment and purchase some LED lamps for the desk as well as the living room from Koncept Technologies. The saving should be substantial but currently LED 'bulb' is about 10 times more expensive than CFL so only the most used lighting will be justifiable purchase.

Read more on eartheasy.com and TreeHugger.

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Gentlemen – Let’s start your smear campaign!

I am surprised that it lasts as long as it did. So finally the personal attack started on Al Gore. The Tennessee Center for Policy Research accuses Al Gore of hypocrisy over energy usage at his mansion.

The average household in America consumes 10,656 kilowatt-hours (kWh)
per year, according to the Department of Energy. In 2006, Gore devoured
nearly 221,000 kWh—more than 20 times the national average.

20 times the national average? OH MY GOD!

Hang on though, I believe his 20 rooms mansion is rather large and the national average home is a lot smaller than his. May be not 20 times smaller, but certainly not comparable.

Last August alone, Gore burned through 22,619 kWh—guzzling more than
twice the electricity in one month than an average American family uses
in an entire year. As a result of his energy consumption, Gore’s
average monthly electric bill topped $1,359.

WOW this is getting worse!

Again, let's take the figures from this paragraph. 22619 X 12 = 271,428, which is comparable to the 221,000 kWh annual usage mentioned before.

This just shows how statistic can be phrased to make you think the figure is worst than it is. And remember, by definition 'Average' implies there are less and more in the whole data set, so picking up on the extremes are like claiming everyone is average. Life doesn't work this way.

The more important omission from their short report are:

  • How many people occupy and use this mansion? How does the energy consumption per person at Al Gore's mansion compares to the 'national average'?
  • How is Al Gore's mansion compares to other similarly sized, private properties?

And the question for all the people out there (critics and proponents): Even if Al Gore is a hypocrite, what have you done or been doing to reduce your carbon emission?

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Save the energy, Save the world

Typical bulb = 100w, a Compact Fluorescent Light bulb that outputs the same amount of light =
23w, a difference of 77w. Multiply that number by total # of US
Households (~120 million) & you can see that if every home switched
out 1 bulb, then we would save about 9.24 Billion watts of electricity
per kw/hour – Enough energy to curb emission levels of nearly 800,000
cars
.

(via Digg & Energy Star)

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