Paul RakoTechnical Editor Paul Rako looks at analog technology in power supplies, interface, the signal path, and life in general.


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Friday, August 29, 2008

Wind power is great; government subsidies are not

Aug 29 2008 3:50PM | Permalink | Email this | Comments (21) |
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The Christian Science Monitor has an article about wind power in a small German town. The article continues a depressing habit of completely ignoring the economies of wind power in favor of the cachet and charms of an alternative energy source. Since the article is more like a wind power hagiography than a dispassionate science article, it is hard to glean what the actual financial situation is in the small town. The author tells is that the townsfolk put in a 2.3 million dollar down payment on two wind turbines but goes on to mention that there are four windmills in the town. The author of the story says the investment on the first two windmill provided a 10% return but does not clarify if that is a gross return or net after maintenance, insurance, debt service, and other costs. Although the article avoids any direct cost numbers, the author inadvertently lets us see what is really happening in this German town. She says that one family uses solar panels to make 30kwh, and that is 50% more than they need. Then she goes on to say the grid pays them $24,000 for the surplus. OK, so that means they use 20kwh and sell 10kwh, 50% more, to the grid. So this means the grid is paying them $2.40 per kwh. In contrast the rate we pay in California is $0.13 per kwh. So the family is being paid 18 times the US rate for their power. What is interesting is if you look at the wholesale cost of power, which is what this should really be compared to, then they in the US they should have been paid $0.045 per kwh. That represents a cost 53 times lower than what the German government pays the family to pump electricity on the grid.

Now I have nothing against wind power or solar power. I do have problems with articles that gush and fawn over something without clearly explaining the cost tradeoffs. In fact I wonder if the CSM article had the numbers right, a commenter to the article points out that Germany pays something more like $0.66 a kwh to PV power generators. The commenter also says the German power rates are something like $0.29 per kwh. What is even more disturbing is when the commenter says, “Each Renewable Energy source has different rates of support (Wind, Geo-thermal, Wave, Ocean Current, Bio-fuels, organic farming, Eco-friendly material production, etc).” Boy, you can see the handouts were more designed to increase the size of the bureaucracy than do any sensible energy policy. The tragedy of this German policy is that the government, about the most technically incompetent bunch of people you can find anywhere, is picking winner and losers. Oh, I am sure they can point to mountains of paper studies that supposedly lead to the various hand-out rates for the different energy sources, but the real deal is like with politicians everywhere, each industry put their brown envelopes under the table, or reminded the commissar about that “incident” at a party back in college twenty years ago, or just schmoozed an laughed at jokes until they got their handout allocation.

This is not energy policy, this is fascism. Having a strong central government working “in partnership” with big business is not democracy and it is never good, look at the two trillion dollars that our government is shoveling to Halliburton and its cronies. If you want to subsidize alternative energy you should set a fixed handout- 20, 30, 40, cents a kwh and let us technical types figure out the best way to get there. This is just a modern-day version of the farm handouts and dairy handouts and wheat handouts and a host of other subsidies that governments use to concentrate benefits (and brown envelopes) while diffusing costs. You are not doing anything sane if you tax the entire population and hand out incentives for people that want to put windmills up. The government is distorting the market and they are wasting the resources. But politicians always prefer to have the money sent to them and then doled out to their deadbeat relatives and favorite cronies.

I find it amusing that the same people who love centralized government demand decentralized business. They want a huge government that takes all our money and then hands it out in small dollops to make us behave the way the ruling elite wishes. In Red China Mao loved to see little steel mills in everybody’s back yard. The new advocates of big government now want us all to have wind generators and solar panels in our back yard. I agree with people that say we have to take away subsidies for big oil, but lets not then go on to hand them out to the folk-energy people. Either one is a betrayal of the public’s trust.

Here is another CSM article about a thermal solar plant. It turns out that using solar energy go boil water and fire steam turbines is also about ready to pay out. What is fascinating is that the same people that demand we have alternative energy at any cost don’t like thermal solar since you have to string power lines to the facility and it covers up the desert, something, along with tundra, that seems to need preserving in these people’s minds. The greenies hate for thermal solar is confusing. They hate PG&E but would rather subsidize solar and wind big business rather than the people that have been in the energy business for 100 years. Indeed, the most radical greenies don’t really want alternative energy at all —they will pine for electric cars and then fight the nuclear and coal power plants we will need to run the cars. This is because radical greenies demand equality. Not equality of opportunity, like is guarantied in the US Constitution, but equality of outcome. Since 80% of the world lives in mud huts and scratches in the dirt with sticks, the radical greenies’ goal is to reduce America to that economic status. Good thing Americans are overwhelmingly in possession of common sense. We don’t want to rape the planet and we don’t want to be wasteful, but we do insist on a lifestyle that gives us freedom of mobility and freedom of comfort and freedom of location. The radicals want us to live in hovel cities as dictated by the new urbanism movement, taking mass transit to our jobs in buildings without heat or cooling, all to be rewarded with a food pellet that drops out of the wall every few hours. I am sure the pellet will be vegetarian. Perhaps the more obedient will be getting canned food instead of dry. Sorry, this is America and we want our cars and our air conditioning and our suburban house. And best of all, Americans, especially the engineers, want these things for all the underprivileged people of the world too. We want to achieve equality of outcome, only we want to bring the rest of the world up to our living standard rather then reduce our to that of cave-people.

If we want to hand out subsidies, how about handing some out to my pals? My buddies over at National Semiconductor have developed Solar Magic, an integrated maximum power point tracker (MPPT) for solar panels. Jim Williams has done a great job designing some very clever battery monitoring circuits for electric vehicles. International Rectifier has come up with appliance motor drive systems that can cut the power consumption by 30 to 60 %. Fairchild, STMicro and Infineon are all working on green systems. Power Integrations is making wall-wart and standby per supply chips that use less than a watt, and that can be used in hundreds of millions of consumer products. All the companies I cover, TI, Freescale, Maxim, all of them, are working on products that will save energy or promote alternatives. Yet they don’t get any government subsides and the radical greenies will disparage them because they are working for “the profit motive”. Like TJ Rogers, I don’t want to see subsidies for anyone, but I submit that if the German government gave half of what it pays in electricity subsides to innovative analog electronics companies, the payback would be far greater in human welfare terms, although perhaps not in smugness or self -satisfaction. I guess all I am saying is that we have to let natural economic forces take their time to work—rushing headlong into one technology or industry is not good policy. We cannot be so impatient to think we can solve problems that have developed over decades. Now that oil is over 100 per barrel, there are huge new reserves of fossil fuels such as in oil shale, as well as all the alternative energy systems that now make sense. Let’s be patient and let the market, meaning all of us in concert, choose the winner rather than letting some government bureaucrat decide to pay 50 times the going rate for electricity.


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Reader Comments


at 8/30/2008 8:33:55 PM, McKinnon said:
There is no "free market". There never has been. It is merely a pretext for having your invisible hand out for a government subsidy. These are the only invisible hands in the economy: unreported deals with political elites. So why not subsidize a technology that puts the feed down where all the calves can reach it? Why not de-monopolize, to some degree, the American economy? Benefit the many, not the few. That's what I'm voting for this year.

at 9/2/2008 2:20:24 PM, LCHIEN said:
That's too funny and probably too true. I thought I was the only one checking the facts and figures that don't add up and bemoaning the lack of detail in these media reports.

at 9/2/2008 2:37:42 PM, extech said:
The media makes the government bureacrats look like genius material.

at 9/2/2008 3:25:12 PM, J. Williams said:
So who on the ticket is benefiting the many, not the few?

at 9/2/2008 4:17:08 PM, piklballboy said:
Wow. You started with such a good argument, and you soiled it with such meaningless ranting. Let the facts make your point -- they are compelling enough. The calculations you present related to the German example are indeed yet another case of blind media coverage of the alternative energy movement. But, calling the German government "fascist", and insinuating that "greenies" are basically communists just about lost any credibility you built. Those certainly were not constructive comments. Fortunately I had the ability to stick it through and read the last section (about technical developments related to power management) where you again provided some value. Another interesting angle is the inability of our government to come up with a cohesive energy policy. It similarly a patchwork of subsidies, many of which still benefit the fossil fuel plants. In fact, Congress recently was unable to renew the solar energy initiative.

at 9/2/2008 6:01:07 PM, Tim said:
You should compare the 13cents (I think your average is likely to be) you for a kWh at your meter with the 33cents I sell peak solar power back to the grid, because the distribution costs are eliminated. When comparing with the 4.5cent wholesale cost you should compare against remote generators on the kV side of the grid. I don''t know where the windmills are.

at 9/3/2008 12:54:58 AM, A German said:
The situation is even worse: they sell all of the solar and wind generated energy at the subsidised rate (up to around 1 EUR/kWh) and procure electricity from the grid at the regular (low) price (around 15-20 EURct/kWh). You could even sell your "green electricity" and contract for nuclear electricity. Pure hypocrisy. A German

at 9/3/2008 2:16:22 AM, ploner said:
Some facts: The subsidised rate for electricity from solar panels in Germany is 35.49 to 46.75 Euro Cent per kWh (depending on the power output and where the solar panels are installed). This is for solar panels installed in 2008. The roof mounted 30kW system mentioned in the CMS article would get 44.48 Eurocent (around 0.64$). The rate for electricity from the grid runs around 20 Eurocent.

at 9/3/2008 2:18:30 AM, Alfonso Spain said:
In Spain are allso 15% green electricity with hight 300% the market prices, then sell to the nuclear co.

at 9/3/2008 2:59:09 AM, Paul Mc, London said:
There is so much groundless polemic in the article that it is hard to take the other parts seriously either. You may have noted global population passed a landmark 50% urbanisation not '80% in mud huts'. The very very non fascist German Gov't may be using un-economic subsidy but that is a decision they democratically take at the behest of a very environmentally aware electorate. There is no wholly free market that will solve a desire to move away from carbon fuel economy. it will be a mixture of private innovation and public 'pump-priming' just as telecomms relies on Govt' regulation of bandwidths to provide economic opportunity.

at 9/3/2008 6:44:22 AM, Mr. English said:
Americans. I like you, most of you, but i don''t think this sort of article does you any favours. The comments balance it out a good deal. Mr. Rako might insist that he needs the comfort of a monster SUV, and that it is his right to take it, but no, most public opinion sees it as needless vanity. Oh Paul, try visiting the rest of the world a bit, we don''t live waist-deep in mud looking for enough fresh water to boil a lizard. We have been civilised quite a lot longer than you have actually, and if it is our choice to use our taxes to prime future world-beating and world saving technologies, then compare that to what the average american gets for his taxes..? are huge weapons and Israel so much more important than free healthcare?

at 9/3/2008 7:09:52 AM, Voice of Truth said:
Dear "The Rest of the World": If America wasn't spending its resources taming the rest of the world, you would be spending your resources doing it instead. If we get B. Hussein Obama as president, he has vowed to slash our military to the quick. You will be on your own very soon. Remember the old saying, "Careful what you wish for... you just might get it." - A Proud American

at 9/3/2008 11:48:47 AM, Bob said:
I for one am all for elimating the US Dept of Engery. Take their billions and start buying Prius''...one for every household. I don''t think it would take 2 years to cover every household in the US...but then again, Toyota couldn''t build them that fast....and yet that would be a handout to Toyota..not an American company....but if there was an American equivalent, then get them the order....and bail out Ford & GM @ the same time....(I would go for the Prius)

at 9/3/2008 12:03:02 PM, arclight said:
Too bad the large themes Paul touched on got lost in his emotional writing. Here's what I got: 1. It's sad that as much as we depend on the flow of capital that so many folks are so ignorant about it. It's appalling that some folks think that that ignorance is noble. 2. Some folks really ARE so convinced of their rightness that they are willing to use the government to coerce other folks. Paul alludes to this; it's a huge problem. Our societies are dependent on (a) respect for the rule of law and (b) respect for the consent of the governed. When we allow folks to compromise either of these, our freedom is endangered, but all too many folks think that emotional satisfaction trumps both of these. Their ignorance of history and human nature is shocking and threatening to the rest of us. 3. Paul suggests honest evaluation of solutions vs. emoting about them. That gets lost in his writing, though. Isn't that what we are supposed to do as adults? How many "adults" are willing to immediately embrace or reject a solution without an honest evaluation?

at 9/3/2008 1:01:13 PM, DM said:
The wholesale cost of electricity varies by orders of magnitude depending on location, time of day, time of year, etc. So it can range from a few cents to dollars for a kWh. Some engineers with home photovoltaic installations have found that the higher price they get for surplus power during the day roughly balances the lower rate they have to pay at night, so they have a net zero electric bill (not counting the PV system cost).

at 9/9/2008 1:17:58 PM, Hans Hammarquist said:
Well with energy production and possible encurraging subsidies, what about on the consumption side. I built a refrigeratior (prototype) that is using at least 30% less enegry than the common one. Why shouldn't that be awarded as well? We can't just stare at the energy production, look at the consumption too. We are slowly getting rid of the common wall wart which helps some.

at 9/9/2008 1:46:02 PM, John said:
Paul, to provoke constructive exchange of ideas... try to keep the topic a bit better focused.... Yea, got the main points. - alternate energy = good - artificial incentives = bad - government/ business too big = corruption/waste - companies/people involved in real change = unnoticed not much to argue with... Just turn down the emotional outbursts that are not constructive... (demeaning of groups = prejudice of all ideas and people related to a "label"...not fair / not good / not accurate). Lots of Analog guys out there with differing opinions. Lots of "greenies" out there with differing opinions. No value in attacking groups... THERE IS VALUE IN DEBATING IDEAS....

at 9/9/2008 2:13:35 PM, Gator Pator said:
Fantastic article. Sometimes it takes a little emotion to make your point and you have. I have been studying alternative enrgy systems for 25 years and so far nothing really has changed. Same old technology with a few new things that can get you a few more watts. Heres my answer. First everybody below say Virginia gets a solar water heater on their roof. Thats 20% of the average residential electric bill. Next flotaing pontoons in the ocean that convert the wave motion into electricity. Big ones. Third and most imporatant of all LED's. CFL's are a hazard and LED's now have lumen outputs that can compete. 30% of the average bill is for lighting. It does cost more but if you can keep the temperature down the payback will happen and be worth it considering it will last about 100000 hours.

at 9/9/2008 8:56:40 PM, AnalogGuy said:
Paul, you say you don't like subsidies going to alternative energy companies. However, you don't mention anything about subsidies going to fossil fuel energy companies. One of the first things the current adminstration did when they took office was to pass out money to their oil buddies. Exon makes about $1billion in PROFITS/week. And your tax money is subsidizing their golf retreats, but you fail to say anything about this. How about this? Let's just take the subsidies from these very profitiable companies and give them to the alternative energy companies. Would that be a fair compromise?

at 9/10/2008 1:08:02 PM, Desert EE said:
Most of those powerlines Paul is trying to tie to some phantom radical movement are (at least in Arizona) largely so we can build more COAL plants in the southwest and sell the electricity to MEXICO of all things. There's nothing like enough solar, thermal or otherwise, on the books to require new powerlines. I smell a couple of unrelated news stories being strung together in order to piss people off and generate traffic to this blog. As others have said, why ruin a perfectly good criticism of subsidies with a bunch of smoke?

at 10/6/2008 2:18:02 AM, Jay Salsburg said:
The problem every owner of Alternative Electric Energy generation faces is the little known technology of the Grid-Connected Inverter. The Grid is the place we all go to consume our gluttonous feast of Electric Power. To make every household a source of power on the grid and therefore reduce the load, every PV, Wind, Micro-Hydro, and Tidal generator needs a Grid-Connected Inverter (System). Yet these devices are little understood technology which also present a problem to the grid; Islanding. Low-Power Grid-Connected Inverters have been taken off the market for some strange reason. Islanding; this peculiar phenomena experienced only by Grid-Connected Inverters may only be managed through a cooperative effort between Government, Utility Companies, and Inverter Manufacturers to adopt a Standard Protocol transmitted through the Grid. This will not happen until, unfortunately, there are a great number of expensive Inverters on the Grid caused to fail catastrophically during blackout conditions.

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