Skip to main content

Home/ LCENVS/ Group items tagged alternative energy

Rss Feed Group items tagged

Micah Leinbach

A realist look at alternative energy - 1 views

  •  
    I would consider this a must-read for those into the alternative energy side of things. While the energies it highlights aren't all new and exciting, the numbers game it plays is pretty key. This is no optimistic one-technology-solves-it-all piece, and it issues a key reminded that no alternative energy we have reaches the input/output energy found in oil. By my reading, key to getting into the next energy phase we should expect is energy reduction, and energy efficiency. Our efficiency numbers, both from a physics and an economics perspective, are awful. The guys behind the Rocky Mountain Institute wrote a book called Natural Capitalism, which offers some great insights into energy efficiency as it stands and as it could be, if anyone is interested in that side of things. One of my favorite aspects of increasing energy efficiency is how its good for economies and good for the environment - still, there is the worry that if it makes things too cheap, people will use too much (the book cites fuel efficiency standards that were so good the cost of driving dropped significanly, and so many more people drove than more energy ended up being used). There are tools to avoid that though. I digress, but still, an excellent view of where alternative energy stands as of now.
  •  
    One such technology that leads to energy efficiency: http://www.csmonitor.com/Innovation/Energy/2009/1231/No-more-power-lines
  •  
    oh man oh man oh man. huge, invisible, underground networks that transmit electricity? sounds familiar... "I have long proposed that mycelia are the earth's "natural Internet." I've gotten some flak for this, but recently scientists in Great Britain have published papers about the "architecture" of a mycelium - how it's organized. They focused on the nodes of crossing, which are the branchings that allow the mycelium, when there is a breakage or an infection, to choose an alternate route and regrow. There's no one specific point on the network that can shut the whole operation down. These nodes of crossing, those scientists found, conform to the same mathematical optimization curves that computer scientists have developed to optimize the Internet. Or, rather, I should say that the Internet conforms to the same optimization curves as the mycelium, since the mycelium came first." -- Paul Stamets more: http://peakenergy.blogspot.com/2008/07/natures-internet-vast-intelligent.html
Jim Proctor

Why Energy Efficiency Does not Decrease Energy Consumption - 2 views

  •  
    Here's one of those studies that apparently shatters our intuition: energy efficiency won't help reduce the use of energy??  Read on for the reason why, all about the "rebound effect" and indirect vs. direct energy consumption.  Again, looks like sustainability requires that we address the bigger picture.
  •  
    This brings up some concerns I have about the environmental movement in general. I often feel like our emphasis is in the wrong place. Even before it was acceptable to question environmental activism (without being labeled a no-good capitalist hippie-hater) I have felt uncomfortable with some of the campaigns and goals out there. Alternative Energy is a key one for me. I dont think we have an energy source crisis, I think we have an energy use crisis. I dont just mean "energy use" in terms of petroleum (CO2 emitting) energy either. Even if we find alternate energy sources (like the solar panels article I posted on the LCENVS220 group), or more efficient machines/lights, we still will expect the same (or more) amount of work to be done from external energy sources. I think we should focus on realizing what energy already exists in our natural systems and learn to synchronize with that to accomplish our goals, instead. This, I think, will address broader (and dare I add more important?) problems than CO2 emissions.
Micah Leinbach

Human Battery - 4 views

  •  
    This is straight out of the matrix - you know how the whole AI system runs of humans producing energy like batteries? These guys are seriously looking at doing just that. This story comes from GlobalPost, a new site that has great international reporting (when a lot of big papers had to fire their journalists as the industry started to decline, GP picked a lot of their international folks up as freelancers, so they developed a good set of connections around the world fast). They're doing a series on power and energy around the world, "Powerland", which this is a part of. Very cool news organization. In a new twist in the progress of the global energy system, Japan is now looking to reduce its energy dependence on Nuclear Power (a source so many other places are looking to for reducing their energy dependence on oil, coal, etc...) So the company featured in this video comes in with an interesting mix of waste diversion/energy production at the same time. The little, marginal bits of energy thrown about when ever anyone does anything - taking a step, talking on a phone, sitting down and chilling - is harnessed to power things in its surroundings. It is sort of like using exercise equipments rotations to generate energy, which some colleges have gotten major press for. I know the military was also looking at putting something in the soles of boots that would create energy when compressed, so that marching or walking could actually power some of a soldier's personal electronics. There are no numbers to see how scalable this is, but looking at the energy margins is interesting. They do add up - one step is nothing, but if you're in Tokyo and there are millions of collected steps all the time, that is a lot of energy-producing floor vibration. One has to wonder as to how serious an alternative this sort of technology is to other types. Almost like being able to paint solar panels onto things, and just take advantage of wherever the sun hits. Its almost desperate, b
  •  
    For a different thing to pay attention to, listen to the street activist (I think - not clear what the source is) message at the very beginning of the video. Interesting the stance Japan seems to be taking, at least within some parts of its culture, in response to the Fukushima incident.
  •  
    I noticed that the Powerland series on GP is being sponsored by Shell, which raises some interesting questions. Multinational energy corporations may be turning to energy alternatives because they know that oil is going down the proverbial drain. Paying attention to where companies like Shell, BP, and Chevron-Texaco might yield some worthwhile information about our energy future.
Micah Leinbach

Rebounding - back to Jevon's again. - 0 views

  •  
    The above article is the Break Through Institute's semi-recent report on the Jevons' Paradox, which I posted additional links to here and debated in class. For the record, the report is favorable. Also for the record, I have not read it completely, and am not laying down final judgment. However: I promised Jim I would respond to this at some point. I still hope to. In the meantime, this is worth musing over (if the link doesn't work, I have the PDF). https://files.me.com/jgkoomey/0aqqfm I really appreciate Break Through and the dismantling of environmentalism's sacred cows, but I'm concerned about this one. Many of their other critiques and analysis seem to have the empirical evidence, but I have yet to be convinced by what I've seen here. Obviously it is a long report, and I have not gotten to read through it entirely, but so far I remain unconvinced. I think they're thinking about the problem in the right way (the economy is a complex social, political, and economic system, it does defy basic models and equations, and if the emergence idea continues to hold up it is a right environment for them) and I really enjoy reading their analysis, but I remain unconvinced by the numbers. Our economy is not composed in such a way that energy is a primary limiting factor to production, which would surely deaden the effect, among other theoretical threats to the idea on both a micro and macro scale. Politically, efficiency measures will continue to allow solar energy and other alternative competitors to carry more weight than they do now, allowing us to free ourselves from the need for energy intense liquids or solids like coal, gas, and oil in favor of less "compact" energy sources. Break Through Institute offers some excellent political analysis, and their efforts at getting outside and away from the usual political roadblocks and antics are appreciated. But I wonder if they
  •  
    Obviously, its not my expertise either, and I'm woefully ignorant in all this ultimately. But their credentials don't seem to be in deep energy analysis and research, and one academic report where I do find Jesse Jenkins (of BTI, who helped write that report and is an energy expert) still encouraged energy efficiency measures (http://www.brookings-tsinghua.cn/~/media/Files/rc/reports/2009/0209_energy_innovation_muro/0209_energy_innovation_muro_full.pdf). I'm not bold enough to lay down final judgment, but I'm going to need a lot more convincing. BTI makes a lot of convincing arguments that I really like - so far, this hasn't been one of them. But like I said, I'm still reading. And trying to get a handle on what Shellenberger, Nordhaus, and Jenkins have under their belts in terms of economic, versus political (when the two are even seperable), analysis. If there is other stuff worth reading in that regard, I'd love to get my hands on it.
Julia Huggins

First-Ever Solar Project Approved on Public Lands in Nevada - 0 views

  •  
    Alternative energy on public land, and from the ocean: http://atlanticwindconnection.com/?page_id=37 The solar farm is a government initiative, the wind farm is a private business initiative. I'm relatively econ-illiterate, but I have a hunch that this might make a difference. Those who have a better understanding, what could this mean about the respective success of alternative energy projects?
Micah Leinbach

Wind power: Clean energy, dirty business? - 0 views

  •  
    Perhaps alternative energy technology's most promising industry, wind, is finding itself to be far more controversial as it becomes far more common and popular. Partially, this is just a good old example of showing us how nothing is perfect. But it does beg the question of large scale energy industry period - are those who see no place for that, in any form, on to something?
Lu'ukia Nakanelua

Hawaii governor candidates want cleaner energy faster - 0 views

  •  
    As the elections in Hawai'i approach, candidates are jumping on the "green" bandwagon to pioneer alternative sources of energy. Will they follow through on it? Will the consequences weigh out the benefits. In Hawai'i, we've been having lots of problems w/ clean energy because it disrupts native ecosystems, in turn reducing biodiversity. How are we able to balance the needs of humans and still keeping in mind the intrinsic value other living systems?
Julia Huggins

Vertical farming: Does it really stack up? | The Economist - 2 views

  •  
    A challenge to the idea that vertical farming may be more energy efficient than traditional approaches. Like the debate around local food though, it bothers me that we focus on energy and/or CO2 emissions when we measure environmental impact. In a much bigger picture, I'm not even so sure that another agricultural revolution, like this, is really what's best for the planet in the long run.
  •  
    Good points all. While the excitement about vertical farms is good for attracting investors, the economic realities of all the systems involved are definitely questionable. That said, the Economist left out some things that are worth mentioning, both for and against the idea. First of all, the use of hydroponics is thrown out pretty willingly and easily, but its hardly simple. For one, you're moving away from the use of soil (and fertilizer, manure, other related mediums) as the primary medium for agricultural production. We are simulatenously just realizing that we don't really know much about soil as a medium. And even with water we have the same problems. The "known unknowns" are pretty great either way, and scale plays in. Most hydroponics (though there are major exceptions) are run by research organizations or universities, which means there is a lot more free and regular support, particularly from the sciences, than most commercial operations will be able to afford. Its much easier, when things go wrong, to have a cadre of free sciences hovering around. As for "you can grow anything in hydroponics", speaking from work I've done with those systems, you can - but good luck with a lot of it. Plus water filtration becomes an issue, though there are biological ways of handling that (even then you're creating a very limited ecosystem - they can get thrown off ridiculously easily). On the other hand, while light inputs are definitely a notable consideration, light science and "light engineering" is making leaps and bounds. So while I'd say issues with light are writing it off just yet, I wouldn't count on that as the everlasting limiting factor. Along with the various spinning, rotating, window side containers there are also various types of windows, "light tunnels", and even the good ol' basic efficient lighting systems and such to consider. And design, rather than technology, can also contribute - several vertical farm designs "stagger" floors to reduce
  •  
    shading from the building itself. Also, for anyone following alternative agriculture from the technology/commerce/urban ag side, there are two details the Economist got wrong. Sweetwater Organics, featured on NBC a few weeks ago, is already running a commerical hydroponics farm out of an old railroad warehouse. The nutrients for their water chemistry come from fish (poop), who are also raised in tandem with the plants, also for food. Also, at least one vertical farm plan has moved off the drawing board (sort of) into fundraising stages, and the land for it is cleared (both physically and legally) for building. This is at Will Allen's Growing Power, in Milwaukee, WI. Will, the "father of modern urban agriculture" and a frequent visitor to the White House with Michelle Obama's "Let's Move" program, is hoping to build the five story building within a few years. It will be located (and provide food to) in a food desert, in one of Milwaukee's largest low-income housing projects. So the world will soon have a test case for this idea. Other cities may follow, but as far as I know the closest one (in terms of multiple floors of greenhouses) is planned for Toronto, and is at least two decades out - which probably means its anyone's guess whether it'll happen.
Kristina Chyn

A Curmudgeon's View of the Energy Challenge - 0 views

  •  
    An NYT article highlighting Vaclav Smil's outlook on energy. We have read a few Smil articles in ENVS 160 about population and peak oil, in which he expresses the same ideas in this article. Smil does not oppose new energy alternatives, however he believes oil and coal are still necessary; we just need to be more efficient.
Julia Huggins

Leviathan Gas Discovery Could be The Mother of All Resource Curses | Green Prophet - 0 views

  •  
    "Houston-based Noble Energy today confirmed that its Leviathan gas find under the water off the shore of Israel is easily the largest exploration discovery in its history, with an estimated 16 trillion cubic feet of natural gas" I'm not quite sure what to make of this discovery. This article certainly gives it a declensionist spin, and I'm not quite sure that I can come up with any alternate positive side. On another note, the term "natural resource" really bugs me.
Darya Watnick

In Kansas, Climate Skeptics Embrace Cleaner Energy - 2 views

  •  
    This article forced me to look at environmental issues from the perspective of religious conservatives. It also gave me hope that people can change if the facts are presented in the correct way. These Kansans do care about the environment but for some different reasons than I do. I was surprised at the amount of overlap though. They want to make sure future generations enjoy life in the same way they do and leave the world better than they found it. Overall, this article gave me some hope.
Micah Leinbach

Leasing the Sun - 0 views

  •  
    An example of how alternative economic models (or even longstanding ones, applied to a new product) can make things like clean energy more feasible for people, even if the initial costs of installation, production, or what not remain the same. Important to remember that how you move things of value around matters, perhaps just as much as what the values are in the first place? If nothing else, the importance of looking at things in a new way, allowing for more options.
  •  
    For the record, if I understood Richard Bettega of facilities correctly, a lease-based program similar to this is what is behind our current solar panels on Pamplin. If a wealthy enough investor can be found, we'll be starting up another program here on South Campus or above the swimming pool. I'm not sure on the details, but they're along the lines of this.
Micah Leinbach

Who can save the world? - 1 views

  •  
    Addresses the big environmental question of where the force to solve environmental problems will come from. This talk argues for coorporations as the major force - and not the small ones either. Cargill as the change we need? He also touches on ideas of economic externalities at the very end, which is one (atleast in my opinion) of the most important economic ideas (and ideas in general) that relates to environmentalism. Not paying attention to the value of environmental resources is bad for the environment, and bad for the economy. The most recent economic meltdown could be argued to be a product of similar misjudgments in value in the housing market. Simply a good philosophy of progress to keep an eye on. Also interesting how businesses are realizing they want to be competitive into the future, and that is the very definition of sustainability
  •  
    Definitely valuable points made in this talk. Oddly enough though, for the same reason that I was concerned about the fungicides saving bees, the fundamental theory if this talk worries me. There is a "treat the immediate illness/symptom" ideology at play here. This very well may be the only option for avoiding the pending doom, but we can't rely on this as a long term solution to our sustainability crisis. True, it might be impractical to wait for consumers to get their act together, but if we just give up on that effort all together, we're not going to save ourselves for very long. There needs to be a drastic change in consumerism. If consumers are sent the message that sustainability is being taken care of at the higher level of companies and producers (and this is my main concern with this talk) then we remove all incentive for consumers to change their ways. Jim posted an article about a week ago about how energy efficient appliances do not actually result in reduced energy use, and the main reason this happens is because it makes the consumers feel like they can go back to old (pre-responsibility) energy use habits (or even more) once the appliances are labeled "efficient." In the same way, this sustainable companies idea might not work very long. I'm thinking, for example, the point where he mentions palm oil in China. He says we could say to consumers "go ahead and use palm oil because its all 'good,' " when in reality -- granted, this palm oil might be better than other alternatives, but still -- any use of palm oil is something we should be trying to move away from. This might be a valuable short-term method of saving the world, but in my opinion it has to be just that: short-term. I agree with you that the mention of economic externalities was one of the most important parts. Too bad he didnt expand on this. I would love it if someone should give a TED talk on just this idea (my parents wont listen when I try to explain that even the organic foo
  •  
    Sounds like, in the long run, a call for a shift in the economic system itself. A little further out there, but I found this one a few nights ago: http://www.ted.com/talks/tim_jackson_s_economic_reality_check.html I recall thinking it sounded a little idealistic at the time, but yesterday's idealism can be today's movement and tomorrow's reality, I suppose. A vague plan for the future from him, but a plan of sorts all the same. Still not sure I buy it, but I can't deny liking the sound of it.
Laura Schroeder

Around the world on solar power alone - 0 views

  •  
    A brief article about the project PlanetSolar, led by Raphael Domjan, and its efforts to prove that solar power is a viable and wise alternative energy approach, especially in the shipping industry. Domjan has overseen the construction of a solar-powered catamaran with 5,300 square feet of solar panels and hopes that its voyage across the world will encourage a re-examination of fuel efficiency and popularize solar technology.
Micah Leinbach

For Green Tech junkies - 0 views

  •  
    From Anti-Matter to floating wind farms, these are some practical and not-practical-yet energy alternatives. Many are well known, others are not, and some are new twists on older ideas. The question I still have is speed - can we implement these fast enough?
Julia Huggins

Nothing Grows Forever - 0 views

  •  
    Economics and Politics. "In essence, endless growth puts us on the horns of a seemingly intractable dilemma. Without it, we spiral into poverty. With it, we deplete the planet. Either way, we lose. Unless, of course, there's a third way. Could we have a healthy economy that doesn't grow? Could we stave off ecological collapse by reining in the world economy? Could we do it without starving?" An old idea revisited with a slightly lengthy (but easily read) background on limits to growth and it's place in economic history, plus a new perspective on how a limit to growth might actually work, and what that might look like. I find the concept of ' "uneconomic" growth-growth that actually drives living standards downward' (to improve happiness, nonetheless), and the argument behind it, intriguing. This is on page 4. After page 5 it starts to look like an idealistic no-grow-utopia. But then this is addressed in the conclusion, as well as some theories about the psychological changes that would have to happen. Then they bring it on back home to politics, and last but not least a reminder of our biological-ecological pending doom. Oh, all the environmental interdisciplinary-ness! "When it comes to determining the shape of our economy, the planet may possess the most powerful invisible hand of all."
  • ...1 more comment...
  •  
    http://www.newsweek.com/2010/03/18/the-no-growth-fantasy.html A counter. The ghost of Malthus will forever haunt no-growth economists, as the ultimate "we tried that already". And the train of thought is reasonable. Malthusian fears about population are one example. There is also a long list of oil/energy scares where people claimed prices were going up and supplies were going down, but adjusting for inflation proved the error of the former and time proved the error of the latter. When history, politics, and economic theory all oppose the no-growth idea, its no surprise that its viewed with a lot of healthy skepticism. That said, I'm a big fan of Herman Daly and the idea that the economy needs to be reformed. Because GDP is an awful way to measure prosperity. But to have an alternative is equally difficult - what should the standard of success be for the great human experiment? Happiness is normally the benchmark. And to academics that sounds all right, because happiness is generally seen as people spending time amongst their families, art, and high culture. But is that naturally what makes people happy? Consumerism was in a large part rooted in a desire for happiness also. Growth was meant to make people happy by making their lives better - and it has. Higher standards of living all over do have economic roots, though that is not neccessarily inherent to them. There is a lot more to say on this, but its a long enough comment as it is, so I'll leave that for another time. I do feel its one of the more serious debates of our (all?) time though, and I'm really glad you brought it up.
  •  
    Obviously, I don't know or care too much about economics. I dont know how my conversations keep ending up here. But. "Growth was meant to make people happy by making their lives better - and it has." Really? Who, to you, qualifies as "people"? And how do you define better? Soaring rates of depression, chemical dependency, and obesity? Or maybe it's these lives that are better (http://www.youtube.com/watch?v=EL0U_xmRem4)?
  •  
    Perhaps because it relates so much to the various issues we have declared to be running rampant in the world today? It is very much connected to any environmental issue. Among a range of other issues. Anyways, I wrote a pretty lengthy response to your questions. I'll post the primary response to your questions here. A lot of it is based on the differences between economics, politics, industrialism, capitalism, and consumerism. In the tradition of Diigo debates, I have crafted a google site. https://sites.google.com/site/economicresponse/home The main page directly answers the question. The other page sets up some distinctions I see, personally, beteen various economic systems. I do not cite academic sources there, and I'm sure it would not take long to find economists who disagree with me, for what it is worth. Unfortunately, I do not have the time to flesh it out with other's ideas, and I apologize for that.
1 - 16 of 16
Showing 20 items per page