From the category archives:

Energy

(This is the second of a 10-part series. Previous post here.)

At the University of New Hampshire, my Soils Science teacher, Art LeClair, turned me on to solar energy. He was my favorite teacher – enthusiastic, intelligent, knowledgeable, experimental, fun and funny. I naturally absorbed what he conveyed.

solar gardening On a winter field trip, our Soils class visited Solar Survival in Harrisville, NH. This was the home and lab of Leandre and Gretchen Poisson, authors of ‘Solar Gardening: Growing Vegetables Year-Round the American Intensive Way.’ They grew food all winter in frigid, frozen, snowed-in northern New England using solar pods, which they developed.

A solar pod is a 4′x8′ cold frame surrounded on the outside with rigid foam insulation and buried partially in the ground. The lid is not a piece of glass or an old window, like a typical cold frame. It is an arch of two layers of Kalwall® greenhouse glazing with Angel Hair, a fine and translucent, yet heavy duty, insulation, sandwiched in between.

The thermal mass inside the pod is a black 55-gallon drum filled with water and laid on its side at the north end. During the day, the water absorbs the sun’s heat and slowly radiates it back out over night.

This photo from the book is a series of pods lined up end to end. You can clearly see the drum laying on its side at the far end of the front center pod.

solar pod

The translucence of the insulation is key. It must transmit enough solar energy in low-light winter for healthy plant growth and to warm the water in the drum to a high enough temperature that it can radiate heat on a cold New Hampshire night.

My friend, Hugh, and I partnered up in lab to build a solar pod. We didn’t get to grow anything in it, but witnessing that process at Solar Survival was proof enough that it worked. After that field trip and construction project, I was completely sold on solar energy!

yanda.fisher.4153 Art shared another source of information with us, a book by Rick Fisher and Bill Yanda of Zomeworks in Santa Fe, New Mexico, called ‘The Food and Heat Producing Solar Greenhouse.’ It was published in 1980 and already out of print the following year. Solar hadn’t caught on yet, so I guess it was not deemed an important book. I tracked down a copy, though (remember, this was way before Amazon and used books!), and studied it as though I was having an exam on it. I now have a dog-eared copy (photo), which I repeatedly refer to, because, like I said last week, solar principles never change.

After my first semester at UNH, my love for solar construction and New Mexico was burgeoning.

Keep reading…

(Glazing and insulation materials to build Poisson’s solar pod and solar cones are available from Solar Components.

(Originally published at www.greenbuyguide.com.)

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Greetings to all you energy conscious, eco-minded folks! I hope you are ready to read about solar energy and green building in this 10-part series! I’d like to start with a little background, though, so you can see:

• Solar has been around for a long time.
• Energy efficiency is not trendy.
• I’m a credible source.

Solar energy is not new.Photo: flickr PhillipC It has been around for as long as the sun! Did you ever notice that the cliff dwellings of indigenous peoples, such as the Anasazi, face south? Over a thousand years ago, people understood the power of the sun. They built their dwellings facing south to capture the sun’s winter warmth. The rocks absorbed the heat and released it slowly after dark. Cliff dwellings were also built under overhangs to shade out the high summer sun. (photo: flickr PhillipC)

sunpower1The principles of solar energy have not changed in thousands of years, and we use them in building today. As energy prices remain unstable, passive solar and other energy efficient building methods are becoming more important. Many communities, such as Taos, New Mexico, where I live, are putting energy efficient requirements into their building codes. (graphic: NM Solar Energy Assoc)

We must incorporate more renewable energy, because fossil fuels are finite. They will not be here forever to heat and cool our homes, and as they get depleted, prices will rise. We cannot create more oil, natural gas and coal, but the sun, wind and water will always be available.

Fossil fuels also cause political struggle, greed and other negative energies. No one needs to die in the battle for fossil fuels when the sun, wind and water can supply our energy needs.

Your home is the first place to begin saving energy. According to the EPA, buildings in the US account for:

• 39 percent of total energy use
• 12 percent of the total water consumption
• 68 percent of total electricity consumption
• 38 percent of the carbon dioxide emissions

It is clear that saving energy in your home will have a positive impact on the planet and your wallet. An energy-efficient home is also a buffer against fuel price increases.

Energy efficient homes are my passion. I have wanted to be an architect since I was about six years old. I played with Legos more often than Barbie dolls. My passion for homes, solar energy and all things eco drove me to become a Certified EcoBroker®, a Realtor® specializing in green homes.

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I’ve been attracted to the sun since my Lego days, too. Maybe I was an Anasazi in a previous life. Or maybe the large sunny window in my childhood room had an effect on me. My mom turned my room into a greenhouse after I grew up and moved out. Whenever I came home, I slept with geraniums and orchids without complaint.

I was always outdoors, too, running in the woods, catching frogs in the brook, or marveling at pansy faces and the multicolor sheen of Japanese beetles. I knew at a young age I was part of the natural world.

At 25, I got a grounds-keeping job at a large summer resort. I was in my element, working with plants and being outside every day. This was my first experience with a greenhouse, though.

The Wentworth by the Sea in Newcastle, NH had a greenhouse where we started from seed all the plants for the hundreds of lavish flower gardens. We mixed our own potting soils, transplanted seedlings into the ground, mulched, weeded, watered, fertilized, cleaned up in fall and spread composted manure on the beds in November. After eight heavenly months at the Wentworth, I wanted to study horticulture. I enrolled at the University of New Hampshire’s Thompson School of Applied Science for the fall of 1980.

There my solar studies began.

Keep reading….

(Originally published at www.greenbuyguide.com.)

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Hot air rises. That principle propels hot air balloons off the ground and over the Rio Grande Gorge here in Taos, NM. Hot air fills the balloon, and it naturally ascends.

That same principle comes into play in your home. You heat your home, and the warmed air goes to the ceiling. If the insulation in your ceiling is minimal or lacking, heat escapes, increasing your energy bills and wasting precious fuel.

I heat with wood and have a ceiling fan. I had noticed over the years during power outages, when the fan was not spinning, the house felt much cooler, even with a hot fire going. I became curious about the insulation in the attic.

A friend and I opened up the access panel and took a look around. Pink fiberglass insulation had been blown in a long time ago, so it was not very thick. I called an insulation company, and when the man came out to look, he said it had an R value of about 19.

The R value of insulation says how well it resists heat transfer. The higher the number, the more resistance it has. There are certain minimums that the building code requires. For ceilings, it is R38.

I had two options, the man said. I could add R19 or R30. I wasn’t sure that what I saw in the attic was R19. It seemed thinner in places, so if I added R19, I might be up to code with R38. I opted for R30 to be on the energy efficient side, for an approximate total of R49.

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There is no rule that says you can’t do more than what the building code says. Code is a required minimum. You are free to do more, and that’s what I did. There probably is a cut-off point, though, where what you put in doesn’t contribute anymore to energy loss, but I don’t know what that is.

As expected, the heat is staying in the house. The ceiling fan is not the necessity it was. I still use it, as it does distribute the heat, but without it, the difference is barely noticeable.

Since I heat with wood, energy savings are hard to calculate. Considerations are the wood itself, how often I am home and how stormy or sunny it is (I have sunny south facing windows for daytime heating). These things are different each winter, so there is no norm for comparison.

I can approximate that I am burning approximately two cords less per year at a cost of $150 each. That is a savings of $300 per year. The cost of the R30 insulation was $900, so my payback time is three years. As the cost of wood goes up, and it will, my payback time will be quicker.

The added benefit is my comfort level. The house is much warmer, and I spend less time tending the fire. Human comfort and quality of life are as important as saving energy. They just doesn’t have a price tag.

(Ceiling insulation is just as necessary where summer cooling is more important that winter heat. The insulation keeps the sun’s heat from penetrating into the living space, which keeps cooling costs down.)

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(Nan’s Note: Read Part 1 here.)

By Norm Ferguson

Social influences

Our behavior is often highly influenced by the other people around us. A saying related to this is: “Choose your friends carefully because you will become them.” An effective way to change you behavior is to associate with other people who are already doing the behavior you want to do.

When we join a group of like-minded people then peer support and conformity help us act as they do. The point is to choose carefully which group of people you will associate with.

It is also clear that small behavior changes are easier to make than big ones. For example, it is often hard to recruit people to go door-to-door to talk about environmental issues. So, a first step may be to ask them to sign a petition stating they are in favor of a certain environmental change. The next step might be to ask them to attend a meeting where this issue will be discussed. At this point it is more likely that they would agree to go door-to-door to talk to others about the matter. This approach is sometimes called the “foot-in-the-door” technique.

A mistake people make in trying to promote behavior change is to argue or debate with a person with the hope of changing their attitude about an issue. The belief is, “If I can get the person to change their attitude, then they will change their behavior.” The data show that this usually does NOT happen. Verbal attitude change is comparatively easy, while behavior change is often not so easy. The lesson is, if you want to promote behavior change, go for the behavior change right away. So, instead of debating someone about the merits of recycling, say to them, “Help me with my recycling.” If they agree, then they will be engaging in recycling behavior and this will likely change their attitude about recycling.

Stress

Stress is a response our mind and body makes to a stressor. A stressor is something in our environment, physical and/or psychological, that triggers a stress response. Due to social expectations and advertising, many of us get caught up in a “stress cycle.” It often goes like this: We think we need more “stuff” (consumer goods) to be happy, so we need more money to buy the “stuff”, so we have to work more to get more money to buy more “stuff.” This becomes a never-ending stress cycle. If we become aware of the stress cycle we are in, then we can do something to get out of it. A concept that applies here is “voluntary simplicity” where a person or family intentionally cuts back on their consumerism.

Unconscious motives

These were first postulated by Sigmund Freud to explain why we do so many counterproductive things. He said our unconscious mind uses a series of “defense mechanisms” to spare us from experiencing conscious anxiety related to our maladaptive behaviors. One is referred to as “denial” which means we refuse to admit that there are negative consequences to our behavior. An example is global warming and some people’s belief that “it’s all a myth!” Another is “rationalization” where we might make a list of reasons why we “have to” have an SUV.

Addictions are behaviors we also use to control anxiety. People may feel deprived, powerless, or have no pleasure in life, so they engage in some form of addictive consumption to alleviate their anxiety. Drinking alcohol, taking drugs, gambling, and shopping are all ways to do this. Addictions like shopping can have negative effects on the environment as well as on the person.

Conscious awareness

Our western worldview focuses on “individualism.” We see ourselves as somehow separate from the environment and dominant over it. Thus, we often fail to see the consequences our behavior has on the environment. However, indigenous cultures have a worldview which focuses on the group rather than the individual and they see themselves as part of the environment instead of being separate from it. We have much to learn from them.

A lot of people believe there is a direct relationship between the consumption of material goods and happiness. This is largely a myth. Above a fairly modest amount of money where there is a relationship between happiness and money, an increasing amount of money is NOT associated with increased happiness. Happiness is mainly associated with having good relationships, meaningful work, and adequate leisure time.

Too many of us are spending very little time out-of-doors directly experiencing the natural world, the sun, and the elements. It is certainly true that, “We abuse the natural environment because we have little direct identification with it.” A lot of us could improve out lives by forgetting the TV, computer, ipod, and cell phone for a while and spending some time out in the natural world. In addition to bettering our own life, it would help our society and our planet.

The environmental problems we face today have been self-created. Sadly, psychological concepts have been used effectively by advertisers and others who are more interested in making money than in doing what is beneficial for our environment. However, with a knowledge of these concepts and the proper application of them, we can move toward reversing the negative environmental trends which exist today and start creating a future which embraces sustainable living strategies. It is in our species and our planet’s best interests to do so.

Norm Ferguson, Ph.D.
Instructor of Psychology
University of New Mexico-Taos
fergus@taosnet.com
575-751-0049

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(Nan’s Note: A few years ago at the Taos branch of the University of New Mexico, I took a class called ‘Energy Basics.’ The teacher was my solar installer, Larry Mapes of Valverde Energy. Larry and I had spent hours talking about energy during my installation, so I was looking forward to a full semester of nothing but energy talk.

It changed my life. Literally. Larry made me see energy and politics from a perspective I hadn’t considered. I can’t begin to tell you what I learned in that class, but, trust me, it was plentiful, deep and life-altering.

I was sick on a day Larry brought in a guest speaker, Norm Ferguson, Psychology Instructor at UNM Taos. Of all days to miss, this should not have been the one! Larry said I would have loved it. I am no stranger to psychology, but to attach it to sustainability was new to me. See what I mean about learning new perspectives?

I contacted Norm last month to see if he would be interested in writing an article based on what he conveyed in class. He sent the following. When I read it, I was really sorry I’d missed that day, but I’m glad to have it now to share with you! Enjoy!)

By Norm Ferguson

Psychology is the scientific study of human behavior. It uses empirical evidence (observations, facts, data) to draw conclusions by studying how behavior is influenced by what we learn, our thinking, other people, stress, and conscious and unconscious motives. The practical idea here is that if we understand why a behavior is occurring, then we can find ways to change it. With regard to sustainable living, the goal is to increase behaviors that contribute to sustainable living and to decrease behaviors which go against it. This article discusses several ways to use psychology concepts to promote sustainable living.

Learning

One approach is called the ABC model. “A” stands for antecedents or what the conditions are before a behavior occurs. “B” stands for behavior or what a person does and says. And, “C” stands for consequences or what happens after the behavior occurs. The idea of this model is that behaviors can be changed by changing the antecedents and/or the consequences.

One example of changing antecedents is “prompts” such as a sign on the wall which says “turn-off lights”. Another approach is to provide information about previous behavior which can help change our current behavior such as a graph on one’s electric bill giving feedback on previous usage. A third approach is called “modeling” where a knowledgeable person shows you how to do something in a more efficient way.

The two main types of consequences are “punishments” and “rewards.” The goal of punishment is to decrease a behavior. For example, putting a tax on polluting will usually reduce such behavior. Rewards are meant to increase and sustain a behavior. Giving tax breaks for installing solar panels would be an example of this.

Another form of learning which has a huge impact on our behavior is classical conditioning or learning through association. This is the basis of virtually all advertising and it is used to actually create a demand for a product. The idea is straightforward. The product (it does not matter what—beer, shampoo, an SUV, bottled water) is associated with something pleasurable such as sex, people having fun, or power and prestige. We are bombarded with such advertising everyday through TV, radio, the Internet, and print media.

This is a major cause of our over-consumption today. We are constantly being told that our life will be better if we just have product “x” and large numbers of us go out and buy it. Being aware of how this process works can help us be less vulnerable to this powerful technique.

A third form of learning which gets us to do things which are ultimately counter-productive to ourselves and the environment is called the “contingency trap.” What happens in this case is that we are lured into a behavior by the prospect of short-term pleasure while we ignore the long-term negative consequences. A prime example of this is the short-term pleasure of smoking cigarettes and the long-term consequences of lung cancer. Most people’s behavior is determined by its immediate consequences rather than effects which take several years to show-up. This is one reason why long term damaging behaviors are so hard to change.

Lastly, the failure to “delay of gratification” or the “I want it NOW” syndrome also causes major problems for many people. We have been conditioned by mass media advertising that we must have things right away, so waiting and saving to pay for something have become “old hat.” Over use of credit cards and sub-prime mortgages are examples of how the failure to delay gratification has gotten many people into serious financial problems.

Thinking (also called “cognition”)

Here are three example of how our thinking processes can get us in trouble.

One is called “either-or thinking” in which we consider only two alternatives. It’s either this or that, it’s yes or no, it’s right or wrong. This form of thinking, which often makes decisions easier because only two choices are considered, can lead us to make bad decisions because it restricts our range of choices. Considering four or five alternatives may well lead to a more informed decision.

The “frog in the hot water” scenario means that when something in the environment changes slowly over time, we are much less likely to notice it than when a rapid change occurs. If we drop a frog into a pot of very hot water, it will immediately jump out, But, if we put the frog in a pot of cold water and slowly heat it, the frog won’t notice and it will allow itself to be cooked to death. This analogy may apply to how we are responding to global warming.

The “folk-model” relates to buying energy efficient appliances. It says we tend to calculate how long it will take to pay for a new (and usually more expensive) energy efficient appliance using today’s energy costs. But, this fails to take into account that energy costs are going to continue to raise so that the payback for the appliance will be faster. Many people don’t consider this when deciding whether or not to buy a new energy efficient appliance.

(Continue to Part 2)

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