Browsing the blog archives for May, 2009.


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    Lessons for Wind Power

    alternative, energy, green living, Uncategorized, Wind

    According to Boston Business Journal, Boston’s Museum of Science announced this week that it will be putting a wind turbine laboratory on its roof. Apparently they have already done wind studies for a year and have come to the conclusion that there is not enough viable wind in their location to create any meaningful electricity. They already have two turbines up and intend to put up three more of varying shapes and sizes ranging from 7 feet to 40 feet. The idea is to “demonstrate small wind turbines that could be erected on small businesses and homes”.

     

    The problem is that small wind turbines cannot be erected on any building, ever. Mother Nature is a very formidable force to deal with. Any and all wind turbines have an incredible vibration; this can cause both structural and noise problems. Roof top turbines have been known to cause nails to vibrate right out of the roof. While the museum roof may be substantial enough to withstand this, with a full time maintenance crew, the average home is not engineered to withstand these forces. 

     

    Second, there is no usable wind on a roof. When you see a small wind turbine on a roof spinning wildly, it looks like it would be generating plenty of power. The truth is, all that spinning is the turbine trying to find a steady wind in a very turbulent area. Wind is invisible, and most people don’t understand what they can’t see. Think of a stick lazily drifting down a calm stream, making slow but steady progress, then there is a rock in the way, the stick goes around the rock but gets caught twirling in the eddy behind it, there is a lot of movement, but no progress. Wind is the same way, once it hits an object, such as a house or a tree; there is wind turbulence behind the object. Another way of looking at this is a sailboat in the lee of a bluff. You feel the wind on your face, it feels strong, but the sail is slapping madly and the boat is going nowhere. A wind turbine is the same way as it searches for the wind in the turbulence.

     

    The Boston Museum of Science would be doing the public a huge favor by teaching the physics of wind and turbulence using smoke chambers and roof mock ups to show how a nail or a screw can be loosened due to vibration. They should teach the benefits of clean wind energy when placed in the right location and the uselessness of putting it in the wrong location. With all my heart I hope the Boston Museum of Science is not advocating building mounted turbines, not only would they be putting the public at risk physically and promoting a waste of money, they will be putting a black mark on wind energy when these turbines never produce any meaningful electricity.

     

    Look for an upcoming blog on proper wind turbine location.

     

    For more information check out the Warwick Wind Trials data on building mounted turbines.

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    Think Globally, Buy Locally and Grow Organic!

    energy, green living, Uncategorized

    I just read a blog this morning on how salmonella is unchecked in the frozen foods we buy. The article was more politically oriented and I don’t want to get into that. But it brought up a good point about global warming.

    If you buy a head of lettuce grown in California and you live in Maine, how does it get to you? Think about this, the soil is prepared and the lettuce is planted using large fossil fuelled machinery. Then there is mega amounts of water wasted as huge sprinkler systems water the crops and everything in between. Then there is that wonderful fertilizer, the kind you wonder what it contains. Then we get our trusty underpaid, underappreciated immigrant workers to harvest the crop and package it for shipping. Then it is sent to a refrigerated distribution center and put into large, refrigerated trucks to be sent across the country, using diesel fuel all the way. Now once it is on the other coast it goes to another distribution center and sent out in another truck. Finally, about a week after being picked it goes on your grocery store shelve.

    That head of lettuce has probably used more fuel to get to the store than you used to run errands this week. A better option would be to buy local produce. Now that summer is around the corner, numerous farmers markets will be selling their goods. This not only saves all that waste of shipping your lettuce across the country, but it feeds the local economy and environment.

    Better yet, grow your own. Especially if you have young children, this is a rewarding endeavor. You will be teaching your children a life long lesson that no school could possibly teach, not to mention children are more likely to eat vegetables they grew. As an added bonus your children will not be ingesting dangerous chemicals from artificially fertilized food. There is nothing more satisfying than eating produce you grew yourself and knowing you helped the environment.

    If you are new to the horticultural lifestyle try Organic Food Gardening Beginners Manual.

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    Go To a Convention For FREE!

    alternative, energy, forum, green living, heating options, light bulbs, solar, Uncategorized, Wind

    Haven’t you always wanted to go to a convention and find out more information, but you just couldn’t justify the time and expense of going? Now is your chance. Virtual Energy Forum is offering a free two-day converence on clean energy. No plane trip, no hotel room and no credit card bill!

    Just sit down at your computer and wonder through the convention. Catch a live presentation by a keynote speaker or ask a vendor some questions. All while sitting at your desk, you can learn the latest about the most important issue facing the world.

    This is your chance to find out how you can make a difference in clean energy without wasting any of your energy. Sign up today for free at Virtual Energy Forum. They can’t make it any easier than that. Set the date June 24th and June 25th, 2009.

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    Wind Is Blowing In!

    alternative, energy, green living, Uncategorized, Wind

    Great news on wind. The American Wind Energy Association had announced 2,800MW of new wind energy installed in the first quarter of 2009. This is awsome news for renewable energy and puts us on our way to reaching President Obama’s goal of 25% of our electricity coming from renewables by 2025.

    But we still have some major obstacles, the largest of which is the lack of updated, smart grid transmission lines. Unfortunately, most great land wind in areas with smaller population densities. We need to get this great power to where it is needed.  We need a renewable energy standard (RES). Everybody who wants a cleaner, healthier future needs to write their Congressmen, their Senators and President Obama and demand what we voted for, a RES today.

    To read the full AWEA report click on this link: http://www.awea.org/publications/reports/1Q09.pdf

    To contact your elected officials click on this link:http://www.usa.gov/Contact/Elected.shtml

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