Chem321:Discussion 7

THE SUSTAINABLE WORLD (Chemistry 321)
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This discussion is based on discussing two questions, and it is set to take place on the wiki, over the next few days (until 11:59pm on Friday, 24th July, 2015). Be sure to read unit 7 and watch both videos: Prof. Robert Ewy on growing willow, and Prof. Ken Visser on small wind turbines. Consider the question with two scenarios in mind - (a) where fracking has given the world a plentiful supply of $100/barrel oil (maintaining gasoline prices at around $3-4/gallon in the US) or (b) where there is a worldwide commitment to reduce fossil fuel usage, coupled with increased use of renewables (due to falling prices for solar and wind power, and cheap battery storage).

We will leave comments on the page below, in response to (and under) the questions posted or the related responses. Be sure to start your text with a *, and sign your responses with four tilde marks at the end. You should post one original response to each question, and then post one followup comment on another student's posting. I will also respond to each student's post.

1. Biofuels or small wind turbines in the North Country

Watch both videos from unit 7: Prof. Robert Ewy on growing willow, and Prof. Ken Visser on small wind turbines. Consider the question with two scenarios in mind - (a) where fracking has given the world a plentiful supply of $100/barrel oil (maintaining gasoline prices at around $3-4/gallon in the US) or (b) where there is a worldwide commitment to reduce fossil fuel usage, coupled with increased use of renewables (due to falling prices for solar and wind power, and cheap battery storage).

Answer either one of the following questions:

EITHER

What the the possibilities for biofuel production in the North Country? Could willow or something similar provide a major cash crop for local farmers with marginal land?

OR

Suggest some suitable applications for small wind turbines in St. Lawrence County and nearby counties. (Post answers below here)

• I think that there are many different applications possible for small wind turbines for the different counties up north for sure. I think that since there is the worldwide commitment to reduce fossil fuel usage, and these renewable sources are becoming more affordable that this could be something big that could happen up here. I think that since the affordable prices these small wind turbines could be used all over for places from the bigger companies to be self sustaining to save on money, or even farms and households having a personal turbine in order to not have to pay for electricity, and if they make extra power they could even sell it to the power company and make some money. Rileytc197 (talk) 16:02, 21 July 2015 (EDT)

• There is a definite possibility that certain varieties of willow in the North Country could act as a means for biofuel production in the North Country. In the video, Professor Robert Ewy is using marginal land to plant different varieties of Willows and test how sustainable they are in the environment they are grown in. He has found one certain variety that is doing better than the others. It requires very little input, no herbicides or pesticides (which is great for the environment), they are resistant to any insect impact, and they are growing to a couple meters tall. Professor Ewy's study is 10 years long and they will be harvesting the willows after 3 years to test which one sustained and grew the best. From this study, many local farmers will be able to use marginal land that they own to grow willows as a major cash crop that will benefit biofuel production. Another study that I read about spoke about a study done on a farm in Illinois where they are growing both corn and willows. The willows (biofuel crops) are raised on the poor, marginal farmland that farmers would normally use fertilizer and pesticides on to make the soil better for the corn crops. This is the link to the article: http://www.takepart.com/article/2015/07/20/how-one-farm-growing-food-and-biofuels-while-reducing-pesticide-use Visserjr199 (talk) 18:02, 22 July 2015 (EDT)

• Small wind turbines as Dr. Visser stated are certainly less efficient than large wind turbines, and are roughly 30-35% efficient and 51-52% efficient respectively. However, this disparity in efficiencies does not negate the usefulness or practicability of small wind turbines. These small turbines still have the potential to generate significant quantities of energy, thus the North Country should definitely institute more large-scale and small-scale wind energy production operations. In terms of small wind turbines there are a plethora of adequate applications in the North Country, such as on farms. Farms clearly have substantial quantities of land, which can house small wind turbines. However, if every inch of fertile land is vital to the farmer it is might be possible to equip grain silos, barns, and farmhouses with enough small wind turbines to power the farm (and possibly enough to sell back to the grid, or to neighbors). Another possibility would be to utilize the wasted space on the rooftops of the universities of the North Country, which would help reduce energy costs and environmental impact. If possible every rooftop that has free space should be outfitted with small wind turbines, and homeowners that have land that they are willing to repurpose should adopt small wind turbines. Thus, there is clearly more than enough options in terms of the necessary space required for these turbines, however, the difficulty stems from the capital required to acquire these turbines. Alexanderlevitz (talk) 21:01, 22 July 2015 (EDT)

2. Microgrids and distributed energy generation

As mentioned in this reading from unit 7, cheaper solar and wind power is making it viable for homeowners to generate their own electricity. It was also announced recently that Canton had received a grant to examine building a microgrid for the town. Is this type of distributed power generation feasible in the North Country? If so, will it be connected to the wider grid, or will people go completely off-grid?

• I think that this type of distributed power generation would defiantly be a feasible thing in the North Country. I think that even though fracking has given the world a plentiful supply of $100/barrel oil up here in the north country this still results in high gas and oil priced due to our distance form ports and other big shipping areas. So this than leaves the people up here wide open to alternate kinds of energy that is affordable and accessible. people would no doubt jump in on this microgrid, also the people would be connected to the wider grid just so that if any extra energy is created this can than be sold back to the power companies.Rileytc197 (talk) 20:04, 21 July 2015 (EDT)

• I strongly believe that these microgrids are feasible in the North Country given that the necessary capital investments are not an issue. There is certainly enough land that could house these microgrids, and sufficient wind, sunlight, and biomass generation potential. As the article stated these microgrids will be capable of functioning independently from the main grid in the event of storms or other complications that result in power outages. Thus, most of these microgrids may begin as supplemental additions to the main grid; however, they could certainly reach the point where they no longer rely upon the main grid whatsoever (off the grid entirely). This will be more easily attained once these renewable technologies have been further developed, thereby reducing costs and increasing overall efficiencies. Overall, microgrids have the potential to be far superior to the main grid, as the main grid loses electricity when it travels through the power lines (dissipation due to resistance), thus microgrids reduce both the distance the electricity has to travel and the overall electricity lost therein. Alexanderlevitz (talk) 21:42, 22 July 2015 (EDT)