Category Archives: Energy

Financial impact of ethanol for boaters

The Press of Atlantic City has some good first-person accounts in their story on the ethanol problem for motorboats. The citations are a little suspicious because they say things like “Thomas estimates” without ever identifying who Thomas might be…. Anyway, they make a good attempt at trying to quantify the per-boat damage and costs from the sudden introduction of ethanol in New Jersey:

“It’s been a nightmare,â€? said Michael Advena, owner of Newport Marine Inc. in Ventnor. “During the first week this summer, we had 11 boats towed in. Out of those 11 boats, nine of them were fuel-related (problems).â€?

[…]

Thomas estimates that a carburetor ruined by fuel residue can cost about $700, plus a few hours of labor, to replace.

“You also get into towing fees,� Thomas said. “If it actually breaks down offshore.�

Fuel tanks can be even more costly. Boaters unwilling to wait for the ethanol to wash all the residue out of the tanks may choose to remove the fuel tank completely and have it power washed. Add on the expense of tearing up the boat deck to get to the fuel tank and the price tag can add up to several thousand dollars.

It is funny how biofuels are said to “clean out” the engines. Bio-diesel in an car or truck with high mileage often scrubs out all the old dirty petroleum waste, which obviously clogs filters. It is not unusual for a biofuel distributer to recommend that users change their filters more often. This seems like a minor inconvenience to me since a cleaner-running engine is a good thing both for health and maintenance. But the problem on boats is significantly greater.

My guess is that most pleasure boats do not have very clean filters to begin with (most people change their commuting/work vehicle oil regularly, but neglect motors for hobbies and toys) and their tanks are also not kept clean so the first blend of ethanol is more likely to cause problems than in automobiles. And that is not to mention that vehicles are far less susceptible to water than boats, as discussed earlier.

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.