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Green Energy Now, And On The Tide

thpr writes "The Electric Power Research Institute and its partners have completed their Offshore Wave Power Feasibility Demonstration Project, which defined potential wave energy projects off the shores of the United States. This is building off of work already done in Scotland (and elsewhere). San Francisco, New York and other areas are considering trial installations of the technology. It is interesting to note (table 1 in the report) that the energy density (kW/m^2) that can be achieved is much higher than wind or solar. In addition, harnessing 24% of available wave energy near the US at 50% efficiency is equal to all of the hydropower currently generated in the US (~7% of total electricity production). On a separate note, in the Office of Energy Efficiency and Renewable Energy's $1.2B 2006 budget the Department of Energy is closing out the Hydropower Technologies Program. Maybe that's why this technology is missing from our National Energy Policy?" Until it reaches maturity, though, U.S. readers can pay for other forms of green energy.

9 of 577 comments (clear)

  1. Why call it green energy when... by LearningHard · · Score: 3, Interesting

    Most likely this will have massive effects on oceanlife and beachlife in the areas they are installed. I view it as a technology with its uses but the greenies have yet again started blabbing about how ecofriendly it is without thinking about the true long term consequences.

  2. It takes two sides to make it work... by helioquake · · Score: 3, Interesting

    Both power providers and consumers need to work in harmony: (1) the power companies are to increase the efficiency in generating more power and (2) the consumers are to utilize the available energy in an efficient manner.

    There isn't much I can do for (1). But I can do for (2) by replacing light bulbs with energy saving bulbs (ESBs, or compact fluorescent bulb that fits in an incadescent lamp), turn off the light where not needed, and turn the damned TV when /.ing. You can do a little to cut some energy expenses by following these actions. In reality I am not going to save over $20 a year. But when people start doing the same, it soon becomes a real money.

  3. Idiocy by Squalish · · Score: 4, Interesting

    Wave power is a total ridiculosity - you want to sacrifice TWENTY FOUR PERCENT of US coastline in order to supply SEVEN PERCENT of the electricity.

    This is our electricity usage BEFORE we tack on the electricity used to power our hydrogen cars, which will raise our consumption an order of magnitude.

    Using algal biodiesel, breeder fission(with development on fusion), and wind where suitable, are the only remotely practical eco-friendly choices that are sustainable - Photovoltaic trumps them all, but to convert even just our current electrical needs to photovoltaic would cost more than we've spent on imported oil since we started importing oil. We could create an infrastructure to supply the entire nation's demand for fuel with algal biodiesel on an amount of money that's similar to what we spend anually on importing oil, which is coincidentally about the same amount of money it would cost to install a single hydrogen pump at every gas station in the US.

    Wave power is and has always been a crock as an energy scheme.

    whoops, forgot to log in :)

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  4. Interesting points by CBob · · Score: 4, Interesting

    That even when a totally non-CO2 emitting, non-radioactive power source is found we still get the "OMG!! It's could cause xxx", uproar.

    Living here in the post-industrial wonderland of NJ, I find this amusing in a bad way.

    The other thing that shocked me was the supposedly "higher" costs for "green" energy. Bad news folks, it's lower than what I pay to Conectiv/Pepco.

    And now back to our regular insomnia...

  5. Re:Other green energy sources by Mercedes308 · · Score: 5, Interesting

    Wind power is also relatively non-disruptive I used to live near a wind turbine that is on the outskirts of a medium sized wind farm. They are the most disruptive energy producers I can think of to be near in terms of effect on people (and possibly animals). The low frequency noise produced by the machine played havoc on sleep (you got none) and can drive you to the point that you think of any stupid excuse not to go home. I had to sell up and move, it had got so bad, due to the fact it was starting to effect every part of my personal and professional life from sleep deprevation and stress. I realise you were referring to the environment, but some of these 'green' solutions to power generation produce an effect to its surrounds other than what is normally addressed when their impact is reviewed. Wind power is often viewed, here at least, to be one of the most cleanest methods of producing energy and I believe that to be true.....as long as you don't live near them.

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  6. Nuclear power is greener than most by Anonymous Coward · · Score: 3, Interesting

    First, there are no CO2 emissions. That's the most important thing. Fossil fuels leave behind CO2 which heats up the planet.

    Second, there is no soot and other such trash going to the atmosphere. Third, the amount of radioactive waste is in fact very little compared to the amount of waste produced by other methods.

    Yes, the waste is highly toxic. And the acquiring of the uranium leaves waste behind. But even so, nuclear power is cleaner and better than any plant fossil based fuel source (oil, gas).

    Even if you are green (I am), get your facts correct and don't think with your emotions in things like these.

  7. Re:Other green energy sources by rsborg · · Score: 3, Interesting
    I'd say that nuclear is pretty green. It could be made even more green if we didn't ban reprocessing. A recent discover (or was it wired?) had a nice article on it, pick it up, it can tell you a lot more than me.

    Not sure if Discover/Wired did something on this, but PBS Frontline did an awesome show on our fear of anything "Nuclear" (IMHO, I think we're only scared of "Nukular" but whatever).

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  8. Re:Other green energy sources by D-Cypell · · Score: 3, Interesting

    Yeah, cos if the sun explodes.....

  9. Re:Fusion by mre5565 · · Score: 3, Interesting
    10% of the world's a GDP is quite a hunk of change, like $5 trillion. With a one time expense of $5 trillion, we could probably solve the cost problem of photovoltaics, and thus harness the ultimate fusion reactor.

    That said, I'd be perfectly willion to spend 0.1% of the world's annual GDP on fusion, since after we solve the world's energy problem, I'd like us to reduce trips to other planets in the solar system to a few days each way. :-)