Energy conservation is a really, really good and absolutely necessary idea. And it’s an idea that Americans need to spend more time getting used to. That being said, it’s not an idea that can be brought about by focusing so heavily on its cost savings. The fact is that conserving energy is a change in lifestyle that will in the short-term raise costs in some cases, and require adjustments to ways of life.
The retrieval, transport, delivery, and consumption of energy is a very large and complex process involving thousands of interactions and touch points. Any change we make in one of these touch points will have an impact on the machinations in another. Adding to the complexity, it is a system that is not closed. That is, it is beholden to influences outside of itself. The diagram above oversimplifies this situation. In reality, the calculation of the depicted numbers involves multiple moving pieces: truck owners, shipping companies, fuel prices, fuel company profits, truck manufacturing profits, engine manufacturing, metals industry, just to name a few of the more obvious ones. Unfortunately, the associate report does not go into detail about how the numbers are derived.
Given the complexity, it is entirely possible that if all long-haul truckers drove these trucks, then profit margins for fuel companies would go down due to the reduction in fuel purchasing frequency. Dropping profit margins are anathema to publicly-traded companies, so fuel prices would likely rise to offset the change in the purchase frequency. Also, any savings would likely take years to materialize given the nature of ownership of these trucks and the initial costs to own them. It is entirely likely that private contractors would not be able to afford the short-term costs and be driven out of business (not dissimilar to smaller fishing concerns in Gloucester, MA have been due to increased restrictions and fuel costs), thus paving the way for larger conglomerate companies who can afford the short-term cost increase.
So yes, we will see a reduction in fuel use and an increase in distance between fill-ups, but at a cost that is perhaps not sustainable in our current system of business ownership and relationships.
A better long-term solution is to drastically alter our reliance on fuel of this kind. To take a look at those things outside this system and see how changes there could have an affect on what we do. Simply using less fuel in a more efficient way will not — in a long-term view — get us where we need to be. At least until our current concepts of business and profit get in the way of true, unadulterated, energy advances.
How about long-haul trucks that are powered by the same kind of solar technology that goes into the pan-Australian race? The fastest car (from the Netherlands) had an average speed of just over 55 MPH. With further research, this can only get better. With better advances in wind power technology, perhaps a solution could be offered that provides on-the-go reserve batter charging for when the sun is down or clouds are above. Perhaps more research into long-distance maglev trains for shipping.
My point is that no matter what solution we propose, there are countless impacts on the existing system that have to be accounted for. A simple poster does not provide an accurate view of what will happen if we enact such things.
This comparison chart from Consumer Reports shows the vast range of differences in cost of ownership across hybrid, standard-, and deisel-fueled models. It’s too long to show here, so I’ll wait. I’m not going anywhere.
As you — hopefully — have seen, the chart shows that the impact of fuel-type on cost is not always positive. There are definitely benefits that owners can realize (financial, environmental, etc.), but it’s disingenuous to say that there will always be a cost benefit. That being the case, I submit that it is just as disingenuous to say the same for owning a hybrid truck.
The argument for hybrid engines — regardless of vehicle type — needs to go beyond cost. There are too many variables to make clear predictions and the historical results are too varied to make a broad statement that it is cost-efficient to own and drive hybrid. Much better arguments are that we are looking to have cleaner air, increase distance between refueling, or use fewer fossil fuels in cars. And if we begin to use these arguments for reasons to own hybrids, it opens up the discussion for other alternative fuels and vehicles such as solar, or mass transit solutions.