USA
Biofuels - risky bets, high returns?
Submitted by Hans De Keulenaer on Sun, 2008-01-06 15:51.In bioenergy, it's often difficult to see the forest through the trees. The many articles about 'truths' and 'myths' do not really help.
Meanwhile, biofuels are currently produced in volumes where they start to make a real contribution to energy security. An ethanol boom in the USA has led to a production of 16 million cubic meters, primarily based on corn. Brazil has a longer tradition and currently produces 15 million cubic meters of ethanol, using sugarcane. In Europe, Germany is leading with a 2 million m3 production of biodiesel in 2005.
Production cost for bioethanol has come down to 0.15 - 0.18 euro/liter (with one liter of ethanol equivalent to 0.67 l of gasoline in terms of energy content).
Are biofuels sustainable? Well, they are definitely not energy or CO2 neutral. The ethanol production process is energy intensive, consuming almost as much energy as it produces. Depending on the carbon emissions of energy used in production, the net CO2 effect can be a fine balance, rising a lot of debate.
algae | bioenergy | Renewable energy | USA
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Bike to Work
Submitted by Hans De Keulenaer on Mon, 2007-12-24 20:58.Battelle has a corporate programme promoting to bike to work.
The programme saves employees costs, gives them a workout and offers bike racks upfront near the office entrance. A few 100 people have entered the programme and use bicycles regularly to work.
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Over 3 out of 4 adults lack fundamental knowledge about energy issues
Submitted by Hans De Keulenaer on Sat, 2007-07-07 11:30."The energy crisis is certainly one of the most complex subjects ever put before the media, and through them, to the American public. It encompasses international relations, economics, science, and that most unpredictable of groups, the consuming public.”
Walker, 1974
Most citizens have strong opinions on energy matters, but a recent survey in the USA of 1,333 adults demonstrates that the factual basis for such opinions is often missing in the respondent's mind. Asking 20 questions, typically less than a quarter of respondents answer correctly, and not a single question has more than 46% correct answers.
Of course, one does not need to know the exact numbers to form an opinion, and for some questions, the 'correct' answer is more a matter of opinion or expectation than actual fact.
Still, some misunderstandings may cause future surprises:
- a typical overestimate of the current impact of renewables, probably related to high media attention
- an overestimate of the US dependency on Middle East oil
- an overestimate of US energy dependency in general
- and an underestimate of the efforts made by companies to find alternatives (though the inclusion of gas-to-liquids and oil shale in this list adds apples to oranges)
It shows that 30 years after the first energy crisis , energy remains an education challenge. With energy currently at its peak of attention, low awareness of the facts now is unlikely to improve in the future.

