Archive for the 'Water and Energy' Category

Myths and Facts About Electricity in the U.S. South

In December 2011, Marilyn Brown from the Georgia Institute of Technology in Atlanta, along with co-authors from the Nicholas Institute for Environmental Policy Solutions at Duke University released a paper titled Myths and Facts About Electricity in the U.S. South.  In this publication, the authors identify six myths about clean electricity in the southern United States and in doing so identify “new starting points for energy policy development” by evaluating these myths in the context of future energy policy scenarios.

One myth that is examined that is also of significance to helping today’s learners more critically evaluate future energy options is myth#6, which states that “power resource decisions have little impact on water resources.” The paper cites that 54% of freshwater withdrawals in the South are for thermoelectric generation; thus, water conservation through energy planning is significant for this region.  The paper describes the disconnect that often exists between a state’s energy planning and water conservation policies citing that “energy impacts on water usage is often ignored.” While recognizing that knowledge of this connection may not alter decision-making associated with power generation, the authors cite that the connection should not be ignored in light of growing populations and shrinking water resources.   This is just the kind of connection I want today’s students to be able to make!

It would be interesting to ask your students to examine their own myths around energy consumption; I am willing to bet that most students operate under the assumption that their energy consumption does not impact local water resources, for instance.  I imagine their myths would be very different from the ones identified in this paper; however, this exercise could serve to start a conversation about the myths and underlying belief systems that might be operating as future energy generation options as well as energy efficiency and conservation strategies are considered in your city or town.

Fact Sheet about Water and Energy

The Union of Concerned Scientists has created a factsheet titled The Energy-Water Collision: 10 Things You Should Know (pdf) that highlights the connections between water and energy usage.

“Energy and water are woven into our daily lives and strongly linked to one another. Producing energy uses water, and providing freshwater uses energy. Both these processes face growing limits and problems. In most power plants, water cools the steam that spins the electricity-generating turbines. Refining transportation fuels requires water, as does producing fuels—for example, mining coal, extracting petroleum, or growing crops for biofuels. Using water in our homes and businesses requires getting it there, treating it, heating it, and more. Because of these links between energy and water, problems for one can create problems for the other. In places where using energy requires a large share of available water, or where water resources are scarce or stressed by competing pressures (such as the needs of farmers or of local ecosystems or, increasingly in many parts of the United States, by climate change), the energy-water connection can turn into a collision—with dangerous implications for both.”

Visit the UCS website to read more as well as to see other, related information about:

A Video that highlights the Water & Energy Connection!

This 20 minute video from the Surfrider Foundation   describes in a colorful, “Story of Stuff“-  style format, current water management practices and offers sustainable solutions to manage water in the 21st century energy.  I am posting this resource on an energy blog because I think the video does a great job of emphasizing the water & energy connection – that energy is used to pump, transport and treat water and that our current energy choices contributes to water pollution. Let me know what you think!

See a 2-minute trailer at: http://vimeo.com/9838297



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