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How to save a lot of money

Wednesday Feb 04, 2009

Good news: You can save a lot of money easily! Here's how it works:

Go to http://www.fueleconomy.gov/mpg/MPG.do?action=browseList (for the US or Canada) or http://www.spritmonitor.de (for Europe) or a similar site where car drivers can enter data of their cars and their tank fillings. Search for similar cars like yours (same engine/power/cylinder capacity, same year of manufacture), look for the average and also for the lowest fuel consumption of these cars (maybe also for the highest).

Let's take the 2004 Toyota Prius. The average range is 46.3 mpg but the best is 62 mpg! Even if you do are not the perfect eco driver, you might be able to achieve 60 miles per gallon.

Suppose you are typically driving 20,000 miles a year. That's 20,000/46.3 = 432 gallons of fuel for the average 2008 Prius. Now let us do the same calculation for the fuel efficient driver: 20,000/60 = 333.3 gallons. Considering a price of 1.7 US $ per gallon, that's about $165 less (870.5 kg less CO2) per year. Not too bad!

What about the 2004 Ford F150 Pickup 2WD 8 cyl 5.4 L? Average mpg is 15.3, worst is 12 and best is 19 mpg. For 20,000 miles a year, that would be 20,000/15.3 = 1,307.2 gallons in average or 1,052.6 for the best driver. Difference is more than $432, so you should be able to save more than $400 (2.25 metric tons CO2) per year (and even more if you are used to driving at high speed and/or with too low air pressure in your tires, or if you use your car instead of your bike for getting fresh rolls in the morning)! For just a fraction of the saved money, you could buy a good computer racing game. Or do indoor cart racing once a year.

For those of you living in Europe, you will save even more (as fuel prices are a lot higher than in the U.S.). In my case, for about 20,000 km (12,427 mi) per year on a Toyota Corolla Combi 1.6 (station wagon), I achieved 5.7 liters per 100 km (41 mpg) in average, compared to 7.5 liters per 100 km (31.4 mpg) for the average driver. With a fuel price of 1.39 EUR per liter (5.25 EUR per gallon), I saved about 500 EUR (and more than 800 kg CO2) per year compared to the average driver, or twice as much compared to a driver that prefers an F1 driving style.

And this is the "car" I am using for short distances, including shopping in my home village - saved me another 100 EUR (plus the fitness center fees) and 160 kg CO2 per year:

Shopping Bike


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Time for a Change

Tuesday Jan 20, 2009

Read this book. Reduce your impact on the environment: Try to consume 25% less electrical energy this year. Ask for FSC certified wood products. Use your bike (with or without a trailer) for distances less than 3 km/2 miles. When driving a car, drive less fast.

Why? Read this book. Or maybe because you need a new challenge. Or just because it's fun to impress your neighbors (who are used to see you in a car) by coming home from shopping or from work on a bike.

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SAP's co-founder Hasso Plattner about the economy, the environment, and more

Saturday Jan 03, 2009

SAP's co-founder Hasso Plattner, now chairman of the supervisory board, recently had an interview with Der Spiegel, the well-known German news magazine.

It's well worth reading, either in the original German version or in the English translation.

The last paragraphs, about lessons learned from the financial crisis, reminded me of finishing reading Jared Diamond's book Collapse: How Societies Choose to Fail or Succeed, one of the most interesting books I ever read. Good book for reminding you to not always follow the mainstream (whatever kind or on which side it is) and to ask yourself from time to time which news are currently not discussed in the media (without falling into the conspiracy theories' trap). Toyota's Five Whys may be a guideline.

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A Report That Will Change the World

Friday Feb 02, 2007

... has today been published by the IPCC, the Intergovernmental Panel on Climate Change. It's about the world's climate and our influence on it.

Read it and keep it in mind when making decisions about your new house, car, desktop system, or server.

Some pictures from the report:

This is a graph of the atmospheric concentration of CO2 over the last 10.000 years.




And this is a graphic showing the temperature change in certain regions, where the blue shaded bands in the small graphs show results of simulations of climate models with only non-human influence, and the red shaded bands show results of models with human influence (e.g. burning of fossil fuels). The black lines are real measurements.

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