Archive for the ‘Energy’ Category

Building Green

Thursday, April 8th, 2010

by Catherine Haug

It must be recognized that humans throughout our history have been curious and inventive, loving to solve problems. We are very creative animals.

Today’s biggest challenge to innovative thinking comes from the use of fossil fuels: their depletion (peak oil), coupled with a warming planet resulting from their use.

One proposed solution is “green building,” which means the utilization of technology and construction materials/techniques that:

  • Increase energy efficiency of the structure by minimizing heat loss in the winter/maximizing heat loss in summer;
  • Generate power on-site (such as with solar panels), for total off-grid living, or to minimize consumption from the grid;
  • Reduce water waste and/or increase environmental water capture;
  • Minimize environmental impact of the project; and
  • Increase the value of the home or commercial property.

Words such as “sustainable,” “environmentally-friendly,” etc. pepper the conversation, generating hope that we can save the planet by maximizing energy return/savings in the construction project.

Wikipedia provides the following definition:

Green Building … is the practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building’s life-cycle: from siting to design, construction, operation, maintenance, renovation, and deconstruction.

Consider This… (more…)

Earth Hour: March 27, 2010

Tuesday, March 23rd, 2010

by Catherine Haug

updated 3/25/10 with link on 7 Things to do in the Dark (sent by Sally J)

Once again it is time to observe Earth Hour, this coming Saturday March 27, 1010 beginning at 8:30 PM (local time). Montana is one of 26 states that have officially pledged to observe earth hour. From the World Wildlife Fund:

During Earth Hour, … hundreds of millions of people around the world will turn off their lights for one hour as a call to action on climate change. From Mongolia to Argentina, the Arctic to Antarctica, from the Cook Islands to Russia and across the United States, lights at homes, businesses, government buildings and iconic landmarks will dim, making the switch toward creating a cleaner, safer and more secure future.

During this hour, turn off all your lights, TV, and anything else that provides light by electric power, including yard lights. Light candles, oil lamps, etc. and enjoy the company of your family; go outside and observe the beautiful night sky without the interference of electrical lighting; or simply sit in darkness and meditate.

To learn more or get involved: see World Wildlife Fund: Earth Hour 2010 or the My Earth Hour site.

Alternative Energy and EROI

Friday, March 19th, 2010

by Catherine Haug

ESP is planning our April 28, 2010 event on Alternative Energy, a topic many of our community support as we face declining petroleum reserves and impending climate change. But the underlying cost of alternative energy production is often left out of the discussion. [NOTE: that event has been postponed until June 23, 2010].

EROI

One way of considering that cost, is as Energy Return on Investment (EROI), also known as Energy Return on Energy Investment (EROEI). Basically, this considers the input cost to generate the energy as well as the energy output, as:

Quantity of Energy Output divided by Quantity of Energy Input

The higher the EROI, the better the choice of energy production. So it has been proposed to use EROI as the litmus test for alternative production systems.

However, please consider: No energy production method gets a perfect score on the EROI test. That’s because of the 2nd law of Thermodynamics, which basically states that perpetual motion is impossible; there must always be an energy input to keep the motion going. Or another way of stating the law: There’s no such thing as a free lunch.

ESP proposes to consider the implication of EROI as we discuss and explore the different alternative energy solutions that have become popular.
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Power Outages, etc

Thursday, January 7th, 2010

by Catherine Haug, January 5, 2010

First, A Story

I woke up this morning at 4 AM when a large limb fell from a fir tree onto my roof. It sounded like I’d been struck by a small bomb! And then I noticed my bedside clock was dark. Ah! a power outage. (more…)

Organic Ag vs Global Climate Change

Tuesday, December 29th, 2009

by Catherine Haug

Is there a connection between global warming and industrial agriculture? If modern society reverted to traditional, organic methods of food production, could we mitigate or perhaps reverse climate change?

The Organic Consumer’s Association (OCA) believes that the answers are YES and YES. They cite the following projections. If we reverted to organic food production:

  • We would drastically reduce the global industrialized food system’s 44-57% share of global greenhouse gas emissions.
  • By converting the world’s 3.5 billion acres of farmland to organic, we would sequester 40% of global greenhouse gas emissions, removing excess CO2 from the atmosphere and storing it in the soil, where it belongs.
  • By also managing the world’s 11 billion acres of pastures, rangelands and forests with organic methods we could potentially sequester 100% of greenhouse gas emissions.

See the article by Ronnie Cummins, for the full story: The Organic Revolution: How We Can Stop Global Warming. See also the ESP article: Organic Ag – The Cure for Climate Change?

But, is this really possible? How does it work? (more…)

Bamboo-Frame Bicycles – an Entrepreneurial Opportunity

Tuesday, December 29th, 2009

by Catherine Haug

Last week, National Public Radio featured a piece on hand made bamboo bikes:  Do It Yourself: Building Your Own Bamboo Bike. This story featured the Bamboo Bike Studio, who offer classes and workshops. They also champion the creation of small businesses in developing countries, to make these inexpensive bikes out of sustainable bamboo.

But anyone can make and use these bikes, not just those who live in developing countries. All you need are wheels, gears and pedals, bamboo for the frame, and materials to join the bamboo.

Unlike working with steel and other common bike materials, bamboo is a natural material that requires only woodworking skills that one can master in a weekend! (more…)