News Energy independence for the US (or any other country)

[DrClapeyron]

http://news.stanford.edu/news/2009/october19/jacobson-energy-study-102009.html" published in Energy and Environmental Sciences whose authors argue we can get 100% from renewables in 20 years.

I read this from the conclusion in the report:

Ideally, good locations of energy resources would be sited in advance and developed simultaneously with an interconnected transmission system.

If all carbon resources droped dead tomorrow, nuclear would be the only fall back. Niche ideas in the oil glut age would be cast aside without a moment's hesitation.

 

[Skyhunter]

If all carbon resources droped dead tomorrow, nuclear would be the only fall back. Niche ideas in the oil glut age would be cast aside without a moment's hesitation.

A highly improbable scenario.

Why even try and predict the outcome of such an unlikely event.

 

[SystemTheory]

The advantage of these panels, and their ability to carry higher currents at higher voltage, is reduced material and labor costs. Because these panels carry the current themselves, there is no need for extra cabling to the inverter. Because each series is operating at 50% higher voltage, fewer series are needed to step up to distribution voltage.

The other advantage is power produced at high voltage draws less current and reduces the proportion of waste heat (oh no, I said "waste"!). Thus the efficiency should be higher and the series/parallel configuration of panels is more efficient in larger series stack. This is also true for DC batteries in an off-grid system, rechargable power tools, etc.

Phrases such as "nuclear waste does not exist" are not going to win any converts from the public. It is good for starting controverseys, selling books, and newspapers. I note that even the International Atomic Energy Agency publishes a number of Safety titles using the phrase "radioactive waste."

http://www-pub.iaea.org/mtcd/publications/ResultsPageSSS.asp

On the issue of it "can't happen here" my link to the Hanford nuclear waste site was deleted. According to the GAO report I posted, the radioactive material is sitting around 20 years after the "cleanup" and reprocessing was supposed to begin. I don't think one can blame politics as an impediment in this case, since the Superfund budget is being paid from the Fed/taxpayer ability to create unlimited funds, and the Government itself is authorized to do the work. This is the political thread so if anyone wants to advocate nuclear power using facts or rhetoric, go ahead. I'm a big boy now who can sift facts versus BS all by myself. I assume everyone else here could do the same without crying foul, but then, recent personal history has proven this theory wrong.

 

[SystemTheory]

On the issue of it "can't happen here" my link to the Hanford nuclear waste site was deleted. According to the GAO report I posted, the radioactive material is sitting around 20 years after the "cleanup" and reprocessing was supposed to begin. I don't think one can blame politics as an impediment in this case, since the Superfund budget is being paid from the Fed/taxpayer ability to create unlimited funds, and the Government itself is authorized to do the work.

I voluntarily relax this statement about politics not being an issue based on reading this report about the law suit between the State and DOE over the Hanford cleanup:

http://crosscut.com/2009/02/05/hanford/18832/

although it appears (from what I can fathom) that the politics are internal to the DOE and Fed agencies, and/or the technical and financial challenges are greater than originally anticipated. I am not sure the public distinguishes between DOE, the military, and the nuclear industry because the historical nexus of connections called "the military industrial complex (MIC). I don't recall a reference, but I recall President Eisenhower warned about the concentrated power of the MIC.

 

[Ygggdrasil]

I see heading towards 40% with improving technology for an annual average. However, in many parts of the US wind capacity swings seasonally down to ~15% (in the summer) over large areas, a fact not captured in those annual averages.

A very good point especially because summer is a time of peak electricity demand in many places of the world that require air conditioning. Hopefully solar technologies (once they become competitive enough to enter the marketplace) could replace some of the lost capacity as solar would be expected to have above average capacity during the summer.

Yes, though micro means moving away from the 50% goal. Wind and solar have their geographic sweet spots, their economics are three to five times better in some areas than others. That means large, centralized solar in the southwest and wind in the midwest, with transmission to other areas.

Micropower generation (i.e. distributed power generation) does not necessarily mean less power generated. A good analogy here would be to distributed computing (splitting up large computational challenges into smaller pieces that can be processed in parallel on small, cheap, mass produced computers). Distributed computing is able to use cheap, simple technology to perform tasks that normally would require a big, expensive supercomputer. In a similar way, large numbers of relatively cheap, mass-produced wind and/or solar installations spread out over a wide area could generate as much power as a larger installation and do so more robustly (since a more distributed power generation network would be less susceptible to grid failures or unfavorable weather in a particular location).

Yes 20%, but I see the evidence as saying it will be difficult to exceed that. This, in a country with only ~12GWe of capacity (1% of the US)

Two countries would beg to differ: the UK and Denmark. Various studies looking at the impact of wind intermittency in the context of British weather patterns have estimated that the UK could generate 30-40% of its electricity from windpower with only modest increases in its firming capacity (1). These increases would add only ~6% to the cost of the electricity.

Denmark has even more ambitious goals and plans to generate 50% of their electricity from wind by 2025. In Denmark, however, intermittency is a significant issue but can be dealt with by storing wind energy. Luckily, Denmark is near Norway, a country with many hydroelectric plants. Therefore, Denmark can easily store its excess wind energy by using the excess electricity to pump water up to reservoirs in the mountains where it can be stored indefinitely and harvested during periods of low wind. Pumped hydroelectric storage is one of the few mature, effective energy storage methods available (with 70-85% storage efficiency[2]) that is already in use across the globe.

Are the UK and Denmark special cases? Of course. Both countries have plentiful offshore wind resources, the UK is fortunate to have fairly constant winds, and Denmark is lucky to neighbor a country with plentiful hydroelectric resources. However, I would contend that every country is a special case. Each individual region will have a different climate, different resources and different challenges that it must consider when planning its future energy economy. A one-size-fits-all solution does not exist. To claim (as others in the thread have said, though not you) that nuclear power is the only option is clearly false. There will be regions where nuclear is the best option but there will be other regions where options like wind are the better choice. The US, for example, has lost of coal available very cheaply. Although there are serious concerns about whether carbon capture and sequestration can be done cheaply and safely, maybe this will end up being the best solution for much of the US (although it will definitely fall out of the 20 years range).

Now, the opening post asked whether it is possible for the US (or any other country) to generate more than 50% of its energy from renewable sources. Denmark is on track to do exactly that and it is possible that other countries will be able to follow as new technologies come into the marketplace.

(1) Studies summarized here: http://www.claverton-energy.com/wind-energy-variability-new-reports.html
(2) Lindley D. (2010) Smart grids: The energy storage problem. Nature 263: 18-20. doi:10.1038/463018a

 

[mheslep]

http://news.stanford.edu/news/2009/october19/jacobson-energy-study-102009.html" published in Energy and Environmental Sciences whose authors argue we can get 100% from renewables in 20 years.

The actual study in your second link in (E&E) does not argue that, or make any reference to a 20 year plan. It compares and ranks various energy sources. Perhaps that claim, as made in the Stanford news release link, is detailed in the mentioned Scientific American article by the same authors.

 

[mheslep]

..Micropower generation (i.e. distributed power generation) does not necessarily mean less power generated.

Yes it does, if micro means close to residential scale. For the case of renewables the resources are not evenly distributed, so concentrating installations in areas of greater resource necessarily means more energy generation than an even distribution across every roof top in the country, North to South. In the US this means the southwest for solar, and the midwest corridor (or offshore) for wind. This doesn't mean that a lot of micro power can't be done, it is, and more will. It just won't be limited to the scale of backyard wind turbines, nor will solar consist of only 10kw panel sets on every US roof.

Two countries would beg to differ: the UK and Denmark.

Not the countries; the studies differ, supposedly.

Various studies looking at the impact of wind intermittency in the context of British weather patterns have estimated that the UK could generate 30-40% of its electricity from windpower with only modest increases in its firming capacity (1). These increases would add only ~6% to the cost of the electricity.

Can you please actually cite the relevant parts in anyone study claiming up to 40%? Lots of things are possible,but I am referring to the experience reported now, like the Texas outage reported in the Nature link:

In February 2008, during a sudden cold snap, the normally relentless winds of west Texas fell silent and the thousands of wind turbines that dot that part of the state slowed to a halt. Local utility operators, unable to make up the shortfall with power from elsewhere in the grid, were forced to cut service to some users for up to an hour and a half before the winds picked up again

Texas already has more than double the wind turbine capacity of Denmark.

Denmark has even more ambitious goals and plans to generate 50% of their electricity from wind by 2025. In Denmark, however, intermittency is a significant issue but can be dealt with by storing wind energy. Luckily, Denmark is near Norway, a country with many hydroelectric plants. Therefore, Denmark can easily store its excess wind energy by using the excess electricity to pump water up to reservoirs in the mountains where it can be stored indefinitely and harvested during periods of low wind. Pumped hydroelectric storage is one of the few mature, effective energy storage methods available (with 70-85% storage efficiency[2]) that is already in use across the globe.

http://blogs.wsj.com/environmentalcapital/2008/03/11/thar-she-blows-dongs-wind-woes/?mod=WSJBlog" says 30% by 2025:

When a hard wind blows across Denmark’s green plains, Anders Eldrup, chief executive of the power company DONG, shudders. Not because of the bone-chilling cold, but because his company’s power grid is under enormous strain.

On windy days, some 30-50% of the electricity flowing into the grid comes from wind turbines that dot the countryside. At less windy times, turbines spin more slowly and send much less electricity through the grid. The grid infrastructure wasn’t designed for such fluctuations. What’s more, windy days bring in more electricity than DONG can profitably sell.

It’s a problem of success. A decade of Denmark’s generous subsidies to wind power producers has produced striking results: Some 16% of the country’s total electricity needs come from wind. Denmark’s government wants to be getting 30% of its electricity from renewable sources by 2025. “It’s an increasingly difficult challenge for us,” said Mr. Eldrup in an interview on the sidelines of an ongoing Carbon Market Insights conference taking place this week in Copenhagen.

Denmark already has high power connections to other countries, but in wind lulls Denmark makes up much of the slack using German coal and Swedish nuclear. Also I'm familiar with pumped storage, however, I'm unaware of significant pumped storage connected to Denmark's grid via Norway or Sweden, versus normal hydro. Generally grids with abundant hydro store energy by simply slowing or stopping the dam flow and allowing the water to collect behind the dam, but not pumping it up as the facilities were not designed that way originally.

Now, the opening post asked whether it is possible for the US (or any other country) to generate more than 50% of its energy from renewable sources. Denmark is on track to do exactly that and it is possible that other countries will be able to follow as new technologies come into the marketplace.

No Denmark is not 'on track' for 50%. They have some studies and goals, with storage 'long term' plans possibly using batteries and fuel cells, none of which exist yet in any scale. Perhaps that can be done, and good luck to them, but its by no means proven.edit: Note Denmark also has the highest electricity rates in the world of reporting countries - 32 cents/kWh (2006).
http://www.eia.doe.gov/emeu/international/elecprih.html

 

[DrClapeyron]

A highly improbable scenario.

Why even try and predict the outcome of such an unlikely event.

It's the scenario posted by the OP: how to gain energy independence in 20 years. If the US found out that in 20 years oil and coal would run dry, I can sure as heck see the scenario being highly probable. There already is a large industrial nation with nuclear energy as a very high percent of its nation's energy output: France. Can't say the same for the niche ideas.

 

[SystemTheory]

This is a NASA article about the Net Primary Production:

http://earthobservatory.nasa.gov/Features/HANPP/hanpp.php

which is the solar powered energy that supports all human consumption and powers life on earth. Although the OP asks about energy independence in the short run, there is a flaw in the question, because humans live through energy interdepence in the food web.

Page 2 (html) of this paper estimates New York City is dependent on external sources of NPP by a factor of 30,000 percent above its own contribution to NPP. Thus, a politician in New York City who argues that Wall Street supports upstate New York via tax subsidies, is like a man standing on his head, because upstate New York supports Wall Street with the production of real goods and services, not the other way around! The problem with capitalist ideology and measuring everything in $ cost is that it introduces many distortions in one's long term reasoning process.

Personally I think a commitment to nuclear + H2 production might benefit the people in the short run, but it would still be a system based on a form of interdependence, which depends on who owns and controls the fuel sources. If we go to dependence on nuclear + H2 in a big way it could have implications for centuries to come, and these might preclude better long run alternatives.

The way nature captures NPP is to convert solar radiation to high energy electrons in the process we call photosynthesis. This is a clean distributed energy source existing today on land and in the Oceans providing clean renewable power all over the globe! In the long run the answer to the question is that energy independence is itself rhetoric, since liife is a process of interdependence, and the politics of which technologies and social systems one is becoming dependent upon in the long run should enter into a reasonable discussion. Also the lessons of history and the dismal legacy of the MIC in keeping secrets from the public cannot be simply swept away by rhetoric!

 

[mheslep]

This is a NASA article about the Net Primary Production:

http://earthobservatory.nasa.gov/Features/HANPP/hanpp.php

which is the solar powered energy that supports all human consumption

Maybe most, but far from all. NPP as defined there excludes, for example, all of wind, geothermal, nuclear, and solar PV or solar thermal collection would be alternatives to NPP - "the amount of plant material left over after respiration"

and powers life on earth. Although the OP asks about energy independence in the short run, ...

No, the https://www.physicsforums.com/showpost.php?p=2534829&postcount=1" asked about renewable energy providing up to 50% of total load. That and independence are not necessarily the same thing.

 

[mheslep]

The actual study in your second link in (E&E) does not argue that, or make any reference to a 20 year plan. It compares and ranks various energy sources. Perhaps that claim, as made in the Stanford news release link, is detailed in the mentioned Scientific American article by the same authors.

Here's the 20 year plan SA article by the authors.
http://www.stanford.edu/group/efmh/jacobson/sad1109Jaco5p.indd.pdf

Interactive link
http://www.flypmedia.com/issues/plus/23/#1/1

 

[Ivan Seeking]

The Pickens Plan
http://www.pickensplan.com/

There is an option at the bottom of the page to skip the sign-up

 

[mheslep]

The Pickens Plan
http://www.pickensplan.com/

There is an option at the bottom of the page to skip the sign-up

We had a good energy thread on his plan some time ago
https://www.physicsforums.com/showthread.php?t=244102&highlight=pickens"

He's cut, but not killed, his big wind turbine buy and is still pushing hard for natural gas transportation conversion.

 

[Ivan Seeking]

He's cut, but not killed, his big wind turbine buy and is still pushing hard for natural gas transportation conversion.

This is where Russ accuses me of being a raging liberal. It is really a matter of pragmatism. The problem that I have watched cycle for decades now is that the price of oil drops too low at times for alternative options to be developed and exploited. The price of oil jumps'; the work on alternatives begins; the price of oil drops, and much of the activity comes to a screaching halt. We have the same problem with many of our domestic oil reserves, offshore and otherwise. The cost of drilling and processing makes much of that oil unprofitable until petro reaches near record-high levels. That is why, when the price of oil was over $100 a barrel, we suddenly saw people drilling for oil in their own backyards! At $4+ a gallon, we saw a huge resurgence of interest and work in alternative fuel technologies, as well as demands for offshore drilling, but at that point we were already in a state of crisis.

Here in the US, petro alternatives cannot compete at prices less than about $3 a gallon. When the price of fuel does get that high, we get serious about alternatives, including domestic oil, but then the price drops again and we are back to SOP. In order for there to be a commercial/industrial incentive for options to petro, there has to be a sustained economic incentive. There is no evidence that will happen until we are already in crisis mode.

So in this case my conservatism says that the national security trumps free-market ideologies. We cannot allow the market alone to govern the rate of progress towards oil independence because the security of the nation could be at stake. We already know from experience that fast and dramatic price increases are possible - increases large enough to cripple the economy. We also know from the 1970's that oil exporting nations can hold us hostage. Consider also that large-scale military conflicts require large reserves of oil, which are most in jeopardy for us during times of military conflicts. This suggests that until alternative for petro are available, we might want to preserve domestic reserves as much as possible. If WWIII ever breaks out, which could be a war fought over energy supplies, our foreign oil supplies [from the ME, for example] could disappear overnight.

For this reason, even as a fiscal conservative, I support imposing an artificial floor on the price of petro products. Taxes would be added to any fuel having a market pump price less than $3 or $3.50 per gallon, for example, and those revenues should be applied to energy independence efforts.

It may be a classically liberal solution, but it is also a simple matter of logic. The markets may be self-correcting in the long term, but the national security cannot afford the luxury of waiting for chaos to cooperate.

 

[mheslep]

This is where Russ accuses me of being a raging liberal. It is really a matter of pragmatism. The problem that I have watched cycle for decades now is that the price of oil drops too low at times for alternative options to be developed and exploited...

Well in Picken's case the price of competing fossil fuels is not the immediate issue. It is the financial snafu, at least according to him. He can't finance the the full turbine buy plus transmission right now. Oil could go to $100 tomorrow and that wouldn't change his problem.

 

[Ivan Seeking]

Well in Picken's case the price of competing fossil fuels is not the immediate issue. It is the financial snafu, at least according to him. He can't finance the the full turbine buy plus transmission right now. Oil could go to $100 tomorrow and that wouldn't change his problem.

Everything was fine until the price of crude plumetted. One cannot obtain financing on alternatives that are not currently economically competitive.

His entire plan hinges on the assumption that natural gas is price competitive with petro.

 

[mheslep]

Everything was fine until the price of crude plumetted. One cannot obtain financing on alternatives that are not currently economically competitive.

His entire plan hinges on the assumption that natural gas is price competitive with petro.

Oil's $76 today, already touched $84 couple weeks ago, and Picken's final decision on the turbines was recent.

 

[SystemTheory]

Maybe most, but far from all. NPP as defined there excludes, for example, all of wind, geothermal, nuclear, and solar PV or solar thermal collection would be alternatives to NPP - "the amount of plant material left over after respiration"

Right. What I mean is that the NPP is converting awesome amounts of power to materials and chemical storage simply from sunlight, and life on Earth has operated on this clean renewable abundant power source since long before the industrial revolution. The fossil fuels we burn provide high-energy electrons which drive oxidation-reduction reactions (combustion), and the electron energy was captured from sunlight and processed in the past. There is a theory, which I used to consider bogus, that the Earth produces renewable hydrocarbon fuels in its core, and now I'm more inclined to see if there is any scientific evidence for this theory. The Department of Energy had a pdf out a few years ago (lost the link) describing the path to innovation in nanotechnology wherein we use high energy electrons from sunlight in a variety of ways. If humans figure out how to effectively capture, store, and transport electrons over a smart grid through R&D, then the inexhaustible power of sunlight would be available for industy and home use without competing with the NPP (it would operate as a parallel system whereas some biofuels convert NPP into fuel instead of food).

Although this is futuristic thinking, so were rockets and nuclear bombs/power stations a few decades ago, and our knowledge of the electron is being advanced by investments in public and private R&D.

No, the OP asked about renewable energy providing up to 50% of total load. That and independence are not necessarily the same thing.

The OP's title says "energy independence for the US (or any other country)" although you are correct that the scope is narrowed to 50% renewables in the post. The reprocessing of nuclear material according to the paper I posted above is going to be less than 2.5% of world stock in the next five years and would not be expected to exceed 30% in the future, so unless there is innovation in that field nuclear reprocessing is only partly renewable at this time (and it does not eliminate radiological material in existence, it increases the world stock, so any orphaned source or by-product material incapable of reprocessing is still regarded as radioactive waste).

 

[Ygggdrasil]

Denmark already has high power connections to other countries, but in wind lulls Denmark makes up much of the slack using German coal and Swedish nuclear. Also I'm familiar with pumped storage, however, I'm unaware of significant pumped storage connected to Denmark's grid via Norway or Sweden, versus normal hydro. Generally grids with abundant hydro store energy by simply slowing or stopping the dam flow and allowing the water to collect behind the dam, but not pumping it up as the facilities were not designed that way originally.

Here's text from the 2010 Nature news feature I cited in my previous post:

Denmark already gets about 20% of its electricity from land- and sea-based wind farms, and it is aiming to increase that figure to 50% by 2025. Because the North Sea winds can drop to low levels for days at a time, however, countries such as Denmark and the Netherlands are increasing their grid connectivity to Norway, which gets the vast majority of its power from hydroelectric plants. Norway's mountain reservoirs provide back-up power capacity, and also offer substantial amounts of pumped storage hydroelectricity, in which water is pumped uphill to a reservoir using surplus electricity, and released downhill again to turn a generator when power is needed.

Pumped hydroelectricity has a storage efficiency of 70–85%, and it is the most mature and widespread technology being used for large-scale electricity storage. China, Japan and the United States, for example, have numerous installations with generating capacities ranging from tens of megawatts (MW) to several gigawatts (GW). Pumped storage hydroelectricity is a particularly good match for wind power because water pumped into an upper reservoir will stay there for a long time, making up for potentially large gaps in wind generation.

I don't know the source of the discrepancy between the WSJ's quote of 30% and Nature's quote of 50%. Perhaps Denmark's policy has changed since the WSJ blog post was written.

edit: Note Denmark also has the highest electricity rates in the world of reporting countries - 32 cents/kWh (2006).

Note that the prices in the EIA source you posted include taxes and Denmark has notoriously high energy taxes (including a tax on carbon dioxide emissions), in part to help promote energy conservation and efficiency. Now, of course, some of the tax does go into subsidizing their wind industry, so part of the high taxes do reflect an increased cost of producing energy but how much is not clear.

 

[Ivan Seeking]

Oil's $76 today, already touched $84 couple weeks ago, and Picken's final decision on the turbines was recent.

What is the price per mile for natural gas vehicles?

 

[DrClapeyron]

Does anyone buy good ole "pump and dump" Picken's windmill farm idea? I think he is using it as an investment base to develop his natural gas reserves. He is definitely spearheading the "coal is dirty" coalition. I'm telling you this now, Picken's windmill plan is the second coming of the railroad.

Natural gas prices are so volatile that Picken's whole idea is ridiculous unless he can somehow convince the US government to order all coal fired power plants to shut down.

 

[mheslep]

Maybe see this earlier thread
https://www.physicsforums.com/showthread.php?t=244102&highlight=pickens

Does anyone buy good ole "pump and dump" Picken's windmill farm idea? I think he is using it as an investment base to develop his natural gas reserves. He is definitely spearheading the "coal is dirty" coalition. I'm telling you this now, Picken's windmill plan is the second coming of the railroad.

Natural gas prices are so volatile

Compared to what? Maybe there's some confusion. Picken's states he wants to replace gasoline and diesel transportation with natural gas. He wants to replace fossil based electric generation, mainly gas, with wind.

 

[mheslep]

...I don't know the source of the discrepancy between the WSJ's quote of 30% and Nature's quote of 50%. Perhaps Denmark's policy has changed since the WSJ blog post was written...

Either way, a goal statement can be just green wash. It doesn't mean they've demonstrated a practical, detailed plan on how to achieve the goal. I have not seen anything demonstrated in/by Denmark that leads me to believe they can do an average 50% wind. Also, at some point when a country points to a large percentage of backup power from another country, it doesn't continue make sense to view the country in isolation and say 'country X does Y% wind'. Rather, all the interconnected countries should be viewed as single system, that is if we want to use it as model.
(https://www.physicsforums.com/showpost.php?p=1795883&postcount=107".

 

[mheslep]

http://news.stanford.edu/news/2009/october19/jacobson-energy-study-102009.html" published in Energy and Environmental Sciences whose authors argue we can get 100% from renewables in 20 years.

I see in the "www.stanford.edu/group/efmh/jacobson/sad1109Jaco5p.indd.pdf"[/URL] the Stanford authors state a cost estimate for a 100% renewable, non nuclear, energy world:
[QUOTE=Jacobson,Delucchi]...Overall construction cost for a WWS system might be on the order of $100 trillion worldwide, over 20 years, not including transmission.[/QUOTE]Or $5 trillion each year; I expect the US share of that approaches $1 trillion a year with transmission. In other words this is not a serious approach to the energy problem, my view.

 

[DrClapeyron]

Maybe see this earlier thread
https://www.physicsforums.com/showthread.php?t=244102&highlight=pickens


Compared to what? Maybe there's some confusion. Picken's states he wants to replace gasoline and diesel transportation with natural gas. He wants to replace fossil based electric generation, mainly gas, with wind.

He also stated he was going to buy Texaco. Natural gas storage creates fear some kind of horrific explosion amongst people.

I think people at large would resist conversion from coal to natural gas less than they would gasoline to natural gas. Call me crazy but that's my one little conspiracy theory.

 

[edpell]

I see in the "www.stanford.edu/group/efmh/jacobson/sad1109Jaco5p.indd.pdf"[/URL] the Stanford authors state a cost estimate for a 100% renewable, non nuclear, energy world:
Or $5 trillion each year; I expect the US share of that approaches $1 trillion a year with transmission. In other words this is not a serious approach to the energy problem, my view.[/QUOTE]

My rough estimate is that the US spends on the order of 10 billion dollars per year on new renewable energy infrastructure so in only 2000 years we will have a new energy system.

 

[Skyhunter]

My rough estimate is that the US spends on the order of 10 billion dollars per year on new renewable energy infrastructure so in only 2000 years we will have a new energy system.

http://www.nrel.gov/wind/systemsintegration/ewits.html" that says if we spend $6.64 billion a year over the next 14 years, the eastern half of the US could get 30% of it's electricity from wind alone.

 

[mheslep]

http://www.nrel.gov/wind/systemsintegration/ewits.html" that says if we spend $6.64 billion a year over the next 14 years, the eastern half of the US could get 30% of it's electricity from wind alone.

Thirty percent on the East coast seems feasible, but not quite yet. The trick to supplying significant wind energy to the US east coast is offshore wind, as there is as much wind resource 30-40 miles off of the US east coast as is in the rest of the US land area combined, but I don't believe there's an economic offshore turbine design capable of tapping Atlantic wind yet. This report for some reason plays fast and loose w/ the offshore costs:

...Note that the integration costs do not reflect the higher capital costs (typically in the range of 50%) for the offshore wind in Scenarios 3 and 4...

That's a fairly large omission and 50% is an underestimate in this area, I believe. I have not yet seen even a speculative engineering study that explains how offshore could be economically built to handle east coast hurricanes.

For onshore, it appears from the transmission overlays that the EWITS plan is to ship energy from the wind intensive midwest to the east coast (where there is little or none onshore) by building more west-east transmission:

[...]The high capacity-factor wind power scenario requires a significant build-out of high-voltage direct current (HVDC) transmission with high-voltage AC “collector” systems to deliver the wind power from the Midwest to the load centers on the east coast.[...]

Unfortunately, the US hasn't solved the political problems of building long distance transmission in the 21st century. Here, e.g., is the 275 mile http://en.wikipedia.org/wiki/Potomac-Appalachian_Transmission_Highline" by one of the states (Md) for technicalities.

 

[SystemTheory]

Reason Magazine online compares "nuclear socialism" to "solar socialism" arguments in this two page item How Green Are Your Nukes?.

http://reason.com/archives/2010/01/22/how-green-are-your-nukes/

I favor solar socialism for reasons stated above. I figure if Nature or Nature's God, as one prefers, can power life on the clean renewable energy of sunlight, then we can too. The conservatives who think I'm being "too optimistic" should remember that Ronald Reagan was an optimist. His energy strategy was to build up the military and keep oil flowing from the Middle East, and on this particular point, I refer to him as the "myopic optimist."

An optimist says we live in the best of all possible worlds, and the pessimist agrees!

 

[russ_watters]

SystemTheory, the article you cite gives a pretty damning critique of the position you favor. Could you explain exactly why you favor it, in the context of what the article says about it?