Gail, that's the most sensible description of wind and solar I've heard. No one seems to realize how fossil fuel dependent these technologies are. They cannot function in the absence of fossil energy.

But we have FF. I think about this issue and I understand the issue, but I don't see it as a long-term issue, i.e. some decades out, perhaps a century or more even, I have no doubt new ways of replacing FF can be found. If we reduce their use to mission critical only, there really shouldn't be a problem.... eventually. It's the transition that's gonna be difficult.

My immediate answer to this problem is a micro-energy build-out making use of recyclables and DIY effort with some of that bailout money helping the process along. $5,000 can actually get every household well on the way to reducing the nation's energy consumption and free up a lot of the grid for other uses, like rail, trolleys, etc.

Cheers

Your suggestion of 'micro-energy' projects reminds me of Chairman Mao's village iron smelters initiative. It's about as likely to be useful, IMHO.

Thank you for a poor analogy and really saying nothing at all. You might want to read my post on that on my blog and get back to me. I say this because people can, are, and have been building their own micro-energy systems.

Perhaps you've followed some of the links provided in the past?

Cheers

Improve your house insulation; use a more efficient vehicle; exercise by walking to the shops instead of on a treadmill; keep Venice and Prague beautiful by not actually going there and complaining about all the tourists. These are projects that are often free or even profitable. Let a thousand flowers bloom.

This is one I get a chuckle out of: use a more efficient vehicle.

Well, I wonder how much energy and how many other resources go into building a new vehicle? I suppose if you mean trade for one, well, OK.

Cheers

I think that is a very misleading conclusion.

I don't think we can have a buildout of these technologies today without continuing to (wisely) expend this petroleum trust-fund in that direction.. but what makes a wind-farm or a PV/CSP installation permanently dependent upon a FF driven economy?

Maintenance, Lubrication, Replacement parts, Grid Structure?

The proposals I have seen for CSP are to have large group of them located in the desert, with dedicated transmission lines. To make this work, you have to have sufficient energy to get the workers back and forth to this remote location, and to bring food to them. PV located in a remote area has the same problem. Someone has to keep getting the dust off of both CSP and PV installations, to keep them operating. There is of course also the grid structure as well for these that is likely to need maintenance.

PV already located on top of someone's house will keep working for the lifetime of the PV, as long as they get brushed off often enough. These PVs don't need to be grid tied, so presumably could continue to provide energy during sunlight hours. I don't know anything about inverter operation. Presumably these would also continue to provide AC from DC current, at least until they get to the end of their lives, using captured solar energy.

With any of these devices, they eventually need to be replace. This requires a factory and transportation of the new finished product to the location where it is to be installed. This transportation works best if there is some established transportation system - highways and trucks, or railroads, or a combination of the two.

I think there is a strange piece of evidence to support this view; the Dakar car rally no longer goes to Dakar. This applies to the suggestion that Europe should get solar power from North Africa via long cables, partly undersea. Like the car rally that project would be repeatedly sabotaged.

Thanks for the clarification.. but I still contend that it's not too difficult to see the non-petroleum workarounds here. As I said initially, we have to use what's already in place, which is roads, cars, trucks, factories and supply-lines that are all heavily 'oiled'. But a desert CSP doesn't have to be extremely remote.

You could put them on the outskirts of Phoenix, El Paso or Tucson (I'll leave Vegas off the list at this point), giving them access to railheads for increasing worker and parts supply, while the railtrack would ideally also accompany the power-spur to the site as well, affording this grid component full maintenance access both for bringing the tools and working power. It's a few layers of considerable but not at all 'monumental' infrastructure that would be mutually supportive. It shouldn't have to be a unique spur-line, either, but could be established along the routes between cities, using grid and rail that then is already serving multiple purposes, while supplanting many old highway demands in the above categories.

The lifetime of PV, and of Rail are the best arguments for implementing them where possible, to buy the kind of timespan needed to adapt away from the old oil systems. For now, they don't happen without oil.. but I don't believe that they have to keep that constraint.

Gail, that's the most sensible description of wind and solar I've heard. No one seems to realize how fossil fuel dependent these technologies are. They cannot function in the absence of fossil energy.

I simply think that view (popular on TOD) is not correct. As a thought experiment, pretend we never had FF. We would have created solar & wind anyway. Our technological/industrial progress would have been slower. But we never would have become addicted to cheap energy. These things can be built and maintained without FF inputs. But we will continue to have dwindling FF inputs for probably a century. The real issue, is will we get serious enough about the transition in time to avoid a dieoff?

Maybe wind and solar could have been developed without fossil fuels, but not in their current form. The little windmills that used to around years ago (to pump water for animals) don't require much in the way of fossil fuels. The huge monstrosities of wind turbines that we have today, that require multiple length trucks to carry their blades, do. Small water mills were developed long before fossil fuels, and could be used again. Solar thermal can be used without fossil fuels. Reflective solar ovens don't require fossil fuels (especially if the metal is already available from used vehicles and other things.)

I still think that the renewable energy that we have without fossil fuels will be very much less than we have today.

On the farm where I grew up (1950's Northern Canada) we didn't get grid electricity until I believe 1960. All draft horses until 1958 (except for threshing gang with their distilate-burning tractor). No telephone until 1962. BUT we always had wind-generated electricty (a 65 foot steel tower in the front yard, manually controlled, with a bank of lead-acid batteries in an outbuilding). Provided power for electric water pump for house, mom's vacuum cleaner, iron, lights, radio.

People who think the world ends if petroleum goes very expensive, have too little experience. If the continent were being fed by suburbanites gardening their front yards and the only thing holding up maintenance of some solar-thermal electricity generation and its transmission lines in central California were unavailability of some petroleum fuel, I would very soon get in the business of hiring a crew of (then abundantly available) cheap labour to anually extract enough petroleum from some tar sands somewhere to be able to provide sufficient fuel to them (at a sufficient price) to keep their transmission lines operating and their mirrors washed.

You underestimate how much housewives value electricity.

I think the size wind turbine you had is a lot more sustainable than the huge size we see today. If lead acid batteries continue to be available, it works for small scale electricity.

I don't recall ever getting a comment from you on my build-out idea. Have you taken a gander?

http://aperfectstormcometh.blogspot.com/2008/03/build-out-grid-vs-househ...

Cheers

Thanks for the link. I will need to look at it. Too many "hats" to wear at the same time right now.

I generally agree with your ideas. See the comments I made on your post.

The little windmills that used to around years ago (to pump water for animals) don't require much in the way of fossil fuels. The huge monstrosities of wind turbines that we have today, that require multiple length trucks to carry their blades, do. Small water mills were developed long before fossil fuels, and could be used again.

I think that you are somewhat underestimating how far the use of renewable energy had advanced prior to the invention of the steam engine. In the seventeenth century 95,000 thousand mills (a combination of water and wind) were in use in France. Prior to the invention of the steam engine water wheels were being used to grind grain, polish metal, run lathes for metal working, grind ore and pump bellows for the processing of iron, manufacture textiles and paper, saw wood, etc. The industrial revolution was not really a technological discontinuity but an acceleration of an existing trend. Economic growth and increasing industrialization/urbanization were already occurring powered by wind and water when James Watt invented the steam engine. The idea that it is physically impossible to make use of renewable energy without fossil fuels is incorrect.

However, I would agree that it is highly questionable whether renewable energy sources can support the same levels of economic production to which we have grown accustomed, and the problems of managing energy descent are extremely thorny. It is a much easier task to build up your infrastructure based on the exploitation of fuels of increasing energy quality than it is to downsize your infrastructure to use energy sources of lower quality.

I also think that the concern about other resources than energy limiting economic production is well taken. It seems unlikely that we will out run of abundant elements such as iron, aluminum, titanium, and magnesium any time soon, but it takes a substantial amount of energy to extract these metals from their oxides, so that a combination of lower quality ores and more expensive energy source would significantly limit how much of these metals we can afford to produce. Other rarer substances may be even more problematical. I think that economic contraction is in the cards, but I am still not convinced that our long term energy future will be totally dominated by plant photosynthesis and passive solar/passive geothermal.

Wind and solar seem to exist without FF. In fact, without solar there would be no FFs.

I'm not sure of your point.

Without FFs there would be no significant wind and solar conversion systems.

Without solar, there would be no FFs, but there would also be no wind.

In fact there wouldn't be much of anything.