Energy roundup

1) News from Green Car Congress

• Hybrid sales are continuing to climb. According to the diligent folks at Green Car Congress, hybrids accounted for 3% of cars sold in May. It's weird, almost like there's some kind of incentive, perhaps something to do with the cost of fuel? Yet, the politicians tell us, the market will fail to bring us efficient cars unless we force them to do it via CAFE and hybrid subsidies. Hybrid subsidies might be a factor in their popularity, except that Toyota doesn't seem to be seeing much drop in demand after they hit the magic number that shuts off the subsidy every year.
• In another GCC article, we find that Honda is discontinuing the Accord hybrid. Apparently, "hybrid" does not equal "slam dunk". The Civic Hybrid works, the Accord Hybrid does not. Apparently, consumers haven't gone completely irrational over the "sexiness" of hybrids.
• Honda, Mercedes, and Bosch are exploring diesel-electric hybrids. Apparently they believe there may be a market in 70 mpg vehicles that can run on vegetable oil.
  

2) An NPR article on plug-in hybrids titled, "Corporations push Congress on Climate Policy" makes some fantastic-sounding claims:

A company called A123 Systems invented the battery pack. Les Goldman is the lawyer hired by the company to represent it in Washington. He has been bringing the Prius up to Capitol Hill, singing its praises to senators and staffers. He tells them it gets 100 to 170 miles per gallon — "and that includes charging the battery every 40 miles or so. And one charge, which takes about four hours, will cost you at the electricity rates in the Washington metropolitan area, at night at about 55 or 60 cents."

What A123 Systems wants is a tax break, not for itself, but for consumers. A decade ago, Congress approved tax credits worth up to $2,000, for buyers of new hybrids. It helped dealers sell thousands of the high-mileage cars. Now, Goldman asks the senators, why not do the same thing for these new battery packs?

Now, I assume you caught the fact that they want it for their consumers, not themselves, right? So they selflessly hired a lobbyist to point out that tax breaks helped Toyota sell "thousands of high-mileage cars". At no point does the reporter stop and ask if rising fuel prices were behind that increase rather than the tax breaks, nor does the reporter point out that A123 might perhaps benefit from those increased sales.

But let's go beyond that. Assuming the following:

• Approximately 65% of electricity energy is lost in transmission (see this great graphic). Thus, for each kW-h consumed, 3 must be generated.
• 1 kW-h of electricity is 3,600,000 Joules (3.6 MJ)
• A gallon of gasoline contains 132 MJ of energy
• Electricity costs about $0.10 per kW-h, so $0.55 to $0.60 worth of electricity is about 5.5 to 6.0 kW-h
  

That means that the plug-in hybrid is getting 40 miles per 5.5 kW-h or 40 miles per (5.5*3.6 MJ) = 2.02 miles/MJ. Inverting that, I get .495 MJ/mile, but that is for energy consumed, not energy generated. By multiplying by 3, I find that the vehicle used about 1.485 MJ of energy generated per mile. By inverting that number and multiplying by the 132 MJ/gallon of gas, I can calculate an equivalent mpg. The electricity is giving an equivalent of 267 miles per gallon for energy consumed, but about 89 mpg equivalent of energy generated because of transmission losses. Not bad.

It is also using gasoline at the rate of 170 miles per gallon. Using the higher figure, that's 170 miles per 132 MJ, or about .776 MJ/mile, roughly half the energy required to go one mile with electricity when accounting for transmission loss.

So for every mile it goes, it's consuming about .495 MJ of electricity used or 1.485 MJ of electricity generated and .776 MJ of gasoline. By adding those, I get the total average energy usage per mile. The combined efficiency -- accounting for transmission loss -- is about 58.5 mpg. That's not much more significant that what I can get in my car (50 mpg on the last tank).

Also, gasoline at $3.5/gallon is equal to $0.095 per kW-hr, or slightly cheaper than what I am using for the cost of electricity (diesel currently happens to be a much better deal at $2.70/gal).

So, instead of serving as a panacea, plug-in hybrids shift the fuel from oil to coal, natural gas, or nuclear, and shift the costs from your cheaper gasoline bill to your slightly more expensive electricity bill. Coal is reputed to be dirtier; it also happens to be burned somewhere other than in your own neighborhood. As you might guess, electric companies are behind some of these efforts to promote plug-ins.

Of course, if you were to install a wind or solar generator at the house, the electricity would be "free", but then again the sun and the wind usually aren't very effective at night when the car is parked. And, as I noted near the end of this article, some people are trying to get something for nothing by plugging their electric vehicles in at work. So here are two predictions/suggestions of what we may see in the next few years if fuel prices stay this high:

• Employers providing charging stations at worksite parking areas for charging employees' plug-ins. Install solar panels on the shelters and you increase your "green cred" while simultaneously providing shaded parking and "free" recharging. Sell extra power back to the grid (net metering) and make that unused space pay its own rent.
• Coin-op meters at large parking facilities for car charging. The coin-op serves as both parking fee and recharge fee. It would be nice if they would allow debit/credit/Paypal transactions, too.
  

3) Regarding the previous post on the news that Congress is considering a measure to block states from enacting more stringent measures: this poses a tactical problem for a decentralist. On the one hand, I'm against turning over all decision-making to a large and growing central decision-making bureaucracy and would much rather see local communities working to preserve their environment. On the other hand, opposing the federal/national Leviathan means protecting the paternalist busybody living next door. It puts you in the position of fighting for local decision-making, and then fighting against those decisions. Geez, I guess that's what Jefferson meant by, "The price of freedom is eternal vigilance." But at least I can meet my neighbors and reason through these issues. And when locals make decisions that help some and harm others, they know the score and can compensate them on the next go-round; when large nations make decisions, the far-flung citizens have little idea who is harmed or benefited, so they will remorselessly slam the same scapegoats in every round.

4) Department of Duh: The Worldwatch Institute claims that photovoltaic (PV) costs are set to decline 40% by 2010. Until just recently, as I noted back in July 2006, PV costs were rising. My guess is that consumer demand driven by both high fuel prices and worldwide government subsidization was driving the trend. Since then, the rise seems to have flattened out and even tipped the other way. If the WI predictions are correct, then Julian Simon should be calling WI founder and perpetual Malthusian doomsayer Lester Brown from the grave to say, "See? Told you so."

40% is a substantial reduction. As I noted in this post, PV is only economical under certain circumstances, but a 40% drop in prices certainly opens that up.

So why "duh"?

Well, if you know that the price is set to drop 40% in the next three years, why would you buy now? And if it is set to drop due to market supply and demand factors (which is arguable, see below), then why would you subsidize it? In fact, if many people would defer planned purchases just a little while, the over-production would create an inventory problem and drive prices down even faster.

Note from the WI report that the primary driver behind the supply increase is the money pouring into China from capital markets. Are they investing because they all believe in Peak Oil, in reducing carbon dioxide emissions, or in capturing some rents through programs like California's Million Solar Homes? If the latter, can this really be said to be a drop "due to market supply and demand factors"?

"Well, no matter" say the Big Government Greens, "whatever it takes to get there. As long as we get to screw Big Oil in the process."

How do you suppose Big Oil got that way? Hint: Among the biggest sellers of solar panels are little mom & pop companies like Shell and BP. Baptist, meet thy Bootlegger.