Category Archives: Energy

The danger of a fuel cell infrastructure

A cursory review of the “Comparison of hydrogen, methanol and gasoline fuels…” in the Journal of Power Sources 79 (1999) 143-168, brought up a curious argument. Joan Ogden, Margaret Steinbugler and Thomas Kreutz suggest the following, on page 166:

Defining ‘infrastructure’ to mean all the equipment (both on and off the vehicle) required to bring hydrogen to the fuel cell, we find that the cost is comparble for hydrogen, methanol and gasoline POX fuel cell vehicles. Hydrogen appears to entail the lowest capital costs.

By how much? And what does that cost look like relative to other more stable and safe sources of fuel that also do not require long-haul centralized distribution? They do not say. Instead, they back away from their own conclusions by offering optimism about hydrogen.

The cost and efficiency estimated for various types of fuel cell vehicles depend on our assumptions, which may change as technology progresses. For example, future improvements in onboard fuel processor technology or development of fuel cells with higher performance on reformates could increase the vehicle efficiency for methonal or gasoline vehicles; better methods of hydrogen storage might lead to lower cost for hydrogen vehicles.

The last sentence is especially important. The amount of security required to properly distribute and store hydrogen fuel is not actually difficult as much as it is incredibly expensive. And the expense is not because of the materials involved, but rather due to the need to retrofit or build out a new system with a constant state of surveillance to avoid loss or damage of this form of energy. Compared to energy sources like biodiesel, which are actually used to clean up petroleum spills and distributed as one of the most environmentally stable forms of fuel, a highly expensive and centralized system of hydrogen seems like exactly the wrong thing to build in a climate of fear from terrorist attack or sabotage.

Since the article is focused on which fuel cell technology is best, it lacks important perspective on whether a fuel cell is really the right choice among all alternative sources. While the US military is running all their engines now on diesel, and spending billions on improvements to supply-chain logistics, this article gives a prediction about fuel cells that is hardly based on real-world experience and thus rather uninspiring:

The capital cost of developing hydrogen refueling infrastructure is comperable to or less than the total cost (on and off the vehicle) for methanol or gasoline fuel cell vehicles. The lifecycle cost of transportation is slightly less for hydrogen than for gasoline or methanol fuel cell vehicles. Like compressed natural gas or methanol, hydrogen faces the issue of reaching beyond centrally refueled fleet markets.

Fuel cell vehicles, even hydrogen, will have to be more realistic before their claims can be validated. For example, today’s gasoline engines could be more efficient, but the car manufacturers and the petroleum companies do not seem inclined to make it happen. They blame the consumer, but no matter who is at fault the fact remains that there has been little/no progress made for over a decade even though the capability exists. And I think we all know that most Americans, especially those driving on the open road at high speed, prefer large, heavy and “safe” feeling vehicles. So economic and cultural factors are important. On the other hand, electric vehicles have long been known to be capable of long distance travel at high-speeds in spite of the efforts by the car manufacturers and petroleum companies to undermine their development. So, with this in mind I have to ask why this report did not point out the more obvious conclusion that hydrogen power-plants fueling electric vehicles would solve the problems of hydrogen distribution as well as power-plant and vehicle emissions. The hydrogen fuel dream could thus be realized, but only as a competitor to other plants but not on an individualized level. Then, after the means of securing the energy had been developed and tested extensively, it would be more reasonable to propose extending it to consumer fueling-stations. Although in the meantime, people might also realize that a diesel-hybrid is far more practical, inexpensive and safe.

Ethanol versus food

Here is another misleading report, this time from Fortune:

We are facing an epic competition between the 800 million motorists who want to protect their mobility and the two billion poorest people in the world who simply want to survive. In effect, supermarkets and service stations are now competing for the same resources.

Sensationalist point, really, since it completely overlooks the simple fact that biofuel production can come from recycling waste instead or or in addition to grain stocks. Even more relevant to the bold claims by Fortune is that production has and can still significantly outpace consumption needs. The problem is not quantity of grain stocks as much as economic and policy decisions that have resulted in waste and graft rather than generosity. I have studied the impact of trade on international stability and security for many years and will never forget the US position twenty years ago. Here is some analysis from 1985 that perfectly describes the unusual economics and politics of US agriculture and foreign aid:

This is a strange and painful year to talk about grain. Our televisions bring us pictures of starving African children, but world grain stocks exceed 190 million tons; a record surplus.

[…]

Worldwide production of wheat and feed grains has grown 20 percent since 1974, 100 percent since 1964. Between 1960 and 1980, food production grew slightly faster than population, yielding a net increase in food supplies per person …

Although this production boom slowed down significantly after 2000, and by 2002 people were warning that climate change (i.e. global warming) could spoil the parade, it is not hard to find agriculture references that still show surplus that could be made into fuel in addition to food:

Compared to the wheat and corn markets, the soybean market has been relatively tame for the last several months. Record large world stocks, increased soybean acreage in the U.S., and prospects for at least a trend yield in the U.S. suggest that surpluses will continue for another year. Soybean oil prices have been supported by speculative demand in light of prospects for increased bio-fuel demand, even though domestic soybean oil stocks have grown to the highest level in four years. Soybean meal prices remain at a low level, reflecting the large supply situation.

[…]

Stocks of U.S. soybeans on June 1, 2006 were estimated at 990.1 million bushels, 290.8 million more than on the same date last year and the largest ever June 1 inventory.

Treehugger on ethanol versus biodiesel

many things are missing in this thread, such as the fact that biodiesel can be made from recycling *extant* oils as well as made from new crops.

that means you are significantly reducing landfill and other hazards while simultaneously reducing petroleum dependence. fish and meat packing plants, tanneries, orchards, farms, fast-food chains, etc. all have waste that can be used for fuel.

moreover, cross-overs are possible too. for example, ethanol can be used to create biodiesel.

and finally, the “complete switch” argument is dangerously misleading. since when does a giant landmass with hundreds of millions of people perform a complete switch for anything?

how long did it take *vast majority* of people to stop smoking? you don’t need to produce 100% biofuel to make a huge boost in emissions quality while significantly reducing the amount of petroleum used. 10% of 150 billion gallons is 15 billion gallons!

even if you can only make 10% of all the fuel you need today by recyling waste, you have just reduced dependence 10% and created new economic incentives to drive innovation and growth. some european countries have mandated just 5%, for example. they’re not sitting on the fence and wondering about dreamy 100% planned solutions that will never come to fruition. diversification an localization of energy sources is clearly more secure than centralized distribution.

you have to take the first step to understand what it means to be headed in the right direction.

Students school Detroit with diesel-hybrid project

An inspirational story from last February:

A car that can go from zero to 60 in four seconds and get more than 50 miles to the gallon would be enough to pique any driver’s interest. So who do we have to thank for it. Ford? GM? Toyota? No — just Victor, David, Cheeseborough, Bruce, and Kosi, five kids from the auto shop program at West Philadelphia High School

Still amazes me that ethanol gets any news at all when there are projects like this out there. As I have said before, ethanol is a great way to make biodiesel. And hybrid-diesel engines are the right technology right now. But these kids have not only proven this fact, they seem rather astute about what is blocking innovation:

Stepping up is something the big automakers have yet to do. They’re still in the early stages of marketing hybrid cars while playing catch-up to the Bad News Bears of auto shop.

“We made this work,” says Hauger. “We’re not geniuses. So why aren’t they doing it?”

Kosi thinks he knows why. The answer, he says, is the big oil companies.

Imagine if the US government would give tax incentives to people developing alternative energy vehicles (like schools!) rather than to people buying Hummers and Escalades. Frankly, I don’t think you can blame just the oil companies:

However, owners of small businesses who buy a Hummer, Ford Excursion or other SUV weighing more than 3 tons get a deduction of up to $25,000 – depending on tax bracket – if they use the vehicle exclusively for work.

The benefits don’t stop there. Once they subtract the $25,000 from the cost of their 3-ton SUV, small-business owners can deduct the depreciation on the remaining amount. Someone who bought a $60,000 SUV, for example, can claim the remaining $35,000 over six years.

No such luck for small-business owners who buy cars weighing less than 3 tons. No matter how much the vehicles cost, they can claim just $15,535 in depreciation over six years and $1,675 each additional year. Deductions for depreciation on trucks and vans weighing less than 3 tons are slightly more generous.

The logic used to be that vehicles weighing over three tons would have to be some kind of heavy equipment like a specialized work truck that no-one would buy unless they had to do some good old fashioned American labor. Of course, that rule went right up in smoke as those with the most money found another way to shelter themselves:

Trying to jump-start the economy after the attacks of Sept. 11, 2001, Congress increased the deduction for small businesses from $25,000 to $100,000 for 2003 and most of 2004.

However, lawyers, doctors and others also took advantage of the measure.

That’s right. If you were in the right tax bracket, you could get $100,000 deduction on a vehicle over three tons. Great way to “jump-start the economy”, don’t you think? More doctors and lawyers with luxury SUVs has really made a difference. Just look at the wonderful results, as only three years later GM and Ford are finding a great deal of insecurity in their industry — tens of thousands of workers laid-off.

Dealers and owners who have benefited from the SUV tax incentive say it helps spur a key part of the economy – automaking – and allows small-business owners to purchase vehicles that improve their bottom line.

Short-sightedness. The benefit was like a shot in the arm that killed the symptoms but left the problem to grow worse. Now small-business owners must wonder if they will have to off-load their guzzler before it’s worthless and be forced to buy a foreign vehicle to improve their bottom line.