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Guy |
SERVICES: |
ENGINEERING PROTOTYPES |
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| PRODUCTS: |
LEVITATION KIT |
ELECTRONIC ARTWORK |
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| SOLAR INFO: |
SUSTAINABLE LIVING |
SOLAR HEATING | SOLAR HOT WATER | SOLAR MOWER | ||
| RESOURCES: | ABOUT ME | IN THE MEDIA |
BUILDING A CANOE |
LINKS |
Guy Marsden
| I believe in doing my best to walk the
talk about conserving energy and living sustainably. I work at
encouraging people to reduce their energy consumption and adopt solar
alternatives, both by example and through the press and public talks. Through the blogs on my web site I have shared my experiences of building and installing solar heating for my workshop, solar heating for the water in our home and even a solar powered lawn mower conversion! A solar powered attic vent fan helps reduce the summer heat in my workshop. Below you can learn more about all the the many measures my wife and I have taken to live lightly on the planet. Hopefully we will inspire many others to do live more sustainably. Most are small, simple things that are easy or inexpensive to do. Drop me a line if you have any questions, comments or suggestions.
When I first decided to put up this page, it took me
months to think of all the things that we do that contribute to a
sustainable way of life. Many small things that my wife and I do
like composting or recycling ink cartridges escaped my notice for over a
month because we never really think about it. |
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![]() If you need green supplies then you should pay a visit to the F. W. Horch Sustainable Goods and Supplies store in Brunswick. It is the only such store in the midcoast Maine region. You can compare compact fluorescent lamps, buy green cleaning supplies, flooring and much more!
Click the image to visit the store web site. |
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Some useful links to other sustainable living resources in no particular order:
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The
Story of Stuff is a 20-minute, fast-paced, fact-filled look at
the underside of our production and consumption patterns. The
Story of Stuff exposes the connections between a huge number of
environmental and social issues, and calls us together to create a more
sustainable and just world. It'll teach you something, it'll make you
laugh, and it just may change the way you look at all the stuff in your
life forever. Click image to view movie. |
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![]() circular fluorescent 30Watt = 150W light
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REDUCING ELECTRIC CONSUMPTION When we bought our new home in 2001, the very first thing we did was replace all the lighting. Most of the ceiling fixtures used 100 Watt light bulbs. We replaced the fixtures with attractive ones that use 30 watt circular fluorescents available from Energy Federation Inc. These fixtures produce the same bright warm colored light as a 150 Watt incandescent lamp (2000 lumens) and last 10,000 hours. Of course we turn them off when they are not actively needed. We also replaced the 100 Watt recessed flood lights in the kitchen with CF flood lamps that consume only 15 Watts each yet are just as bright. We even replaced the 40 watt bug lights on the porch with 6 Watt CF lamps and put both on light sensors so they turn off when it's light outside in case we forget to turn them off. In 2008 you can get a $1.50 per lamp rebate from the Efficiency Maine program which promotes the use of efficient appliances. To learn more about CF lamps, read this page of Compact Fluorescent Facts. |
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EFFICIENT NIGHT LIGHTS We use these inexpensive electroluminescent night lights throughout the house, they use lees than a penny worth of electricity per year. They sell in packs of 2 or 3 at most home supply and hardware stores for under $10.00 a pack. While not quite as bright as a night light with an incandescent lamp, they serve the purpose very well. By comparison a typical 7 Watt night light left on all day wastes 168 Watts/day or over 5 Kilowatts a month! |
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PHANTOM LOADS We plug our entire TV and stereo equipment stack into an outlet strip with a single switch so we can turn it all off when it's not in use. Stereos and any device with remote control - like VCRs and DVD players all stay on all day waiting for the remote signal, this is called a "phantom load". That can add up to a lot of power. Our combined stereo equipment and TV uses about 12 Watts when it is "off", that's over 8.6KW per month that would be going to waste if left on! (see below) Any electronic device that uses a wall adapter (engineers call them "wall warts") is a potential phantom load that can be switched off with an outlet strip or un plugged when the device is not in use. Of course cordless phones and answering machines must be on all the time. |
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![]() Kill-a-Watt Meter |
MEASURING ELECTRIC LOADS A while ago I purchased a Kill-a-Watt Meter, a simple device that sells for $20-30. You plug your appliance into it and it displays, Watts, Amps, Volts and Watt hours amongst other things. Leave your appliance plugged in for a day to see how many KW it consumes! It will record how many hours it measured. Here are some readings I took of our stereo equipment:
So when our stereo setup is technically "off" it wastes 288 Watts per day which adds up to 8.64KW per month. We pay 13 cents per KW here, so that would cost us $1.23 a month in wasted energy. |
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SAVING POWER WITH TIMERS I have plugged my internet router and wireless adapters into a timer that shuts them off every night to save power. Another one in the house turns off my light sculptures and decorative lights after midnight. The timer that I found uses very little power and has a battery backup so it never loses time, it is available from Harbor Freight for under $10.00. |
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![]() solar yard light ![]() motion sensor flood light |
OUTDOOR LIGHTING The path from our house to my workshop is over 70 feet, on a moonless night it is totally dark our here in the country, so I installed several solar powered floodlights to light my way. These inexpensive lights use a solar panel to charge a battery inside in the daytime, then turn on automatically at dusk. Depending on how much sun they get during the day they will vary in brightness and duration at night. To light our parking area so that we can see to unload our vehicles I installed a motion sensor flood light that turns on for only 5 minutes at a time. This saves more energy than one that turns on at dusk and stays on all night. |
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GREEN SOURCED ELECTRICITY Several years ago when it became available through Maine Renewable Energy due to electric supply deregulation in Maine we signed up for electricity that is 100% renewable, AND 100% emission free. Our electricity is produced from hydro (80%) and wind power (20%) with no harmful air emissions- NO CO2, NO NOx, and NO SO2, which means NO contribution to global warming, ozone, smog, or acid rain. Another option that we have on yet pursued is to purchase wind energy credits called "Wind Watts" through Maine Interfaith Power and Light. |
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ENERGY STAR APPLIANCES Our other major and smaller appliances all have good Energy Star ratings for efficiency. For instance our refrigerator which has a freezer on the bottom with a separate door consumes only 190 to 250 Watts when running. |
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LCD COMPUTER MONITORS My 20" computer monitor only uses 29 Watts, compared to a similar sized glass CRT screen that can use more than 10 times as much energy! We also use laptops as much as possible for their convenience and low power consumption (about 20 watts). Below my monitor is a power strip that allows me to turn off my printers and other accessories when I am not using them. I also use a free software tool from www.localcooling.com that optimizes my computer's power settings and reports on-screen the energy saved. |
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![]() dishwasher energy saver buttons |
USING ENERGY SAVER OPTIONS Our dishwasher has energy saving features that allow us to disable the "HI TEMP WASH" which uses electricity to heat the water above the already hot water supply temperature. We also disable the "HEATED DRY" mode which again uses an unnecessary electric heater. Incidentally using a fully loaded dishwasher uses considerably less water than washing them by hand, so we use it for most of our dish washing needs. |
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![]() water heater |
LOWERED HOT WATER TEMPERATURE Like most hot water heaters, ours came set above 120F. I lowered if to 110F to reduce our propane consumption. (This was before I installed the solar collectors). This is a perfectly comfortable temperature for bathing. If you find that you add cold water when washing or showering, then you can turn down the thermostat on your water heater to the point where you no longer add cold water. This will save all the energy that goes to waste heating water above the temperature that you actually use. Some folks like a hot shower, but keep in mind that 130F water can scald you in 20 seconds! |
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![]() solar collectors on wall |
SOLAR WATER HEATING In July 2006 I purchased and installed a complete solar kit that augments the propane domestic hot water heater. The solar collectors mounted on the south wall of the house and pipes heat into a 40 gallon storage tank when the sun is shining. This affordable system is one of the simplest, and least expensive ways to reduce energy in your home with an average installed cost of $3-5000. The design goal is to reduce the energy required to heat water by 75% per year, with a 90% offset in the summer. My net cost after Maine State's 25% refund and the 30% Federal tax incentive was $1500 (not including installation which I did myself). To learn more about solar incentives visit the DSIRE web site for state by state listings. To find a solar installing contractor in your area, click here. Here's a handy solar system cost estimator. |
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![]() pump under sink |
CONSERVING HOT WATER Like many houses, our main bathroom is at the far end of the house from the water heater. A total of about 45 feet of copper pipe that must be heated before hot water arrives at the faucet. This takes over a minute - longer in colder weather. This wastes a lot of water as we run the shower and wait for it to warm up! I installed a pump made by ACT, Inc. Metlund Systems (and also by Taco), both systems sell for around $260 to $320. This unit conserves energy by pumping hot water up to the faucet at the press of a button - and re-circulating it back to the water heater, it shuts off once the water is hot enough, typically in less than a minute. Click the image to learn more. |
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![]() low flow shower head |
LOW FLOW SHOWER HEAD We installed a low flow shower head that I measured at 1.6 Gallons per minute yet it has good pressure and an invigorating spray. For reference a few years ago average showerheads delivered about 5 to 8 gallons per minute (gpm) at 80 psi (normal city water pressure). The current standard for low-flow heads is 2.5 gpm at 80 psi. The pressure from our well pump is a nominal 45psi which aids in reducing flow. A 10 minute shower in our home uses about 16 gallons vs 50 gallons at 5 gpm, or 25 gallons at 2.5 gpm. Here is some interesting info about low flow shower heads. We could think of our well water as "free" until we consider the 1600 Watt well pump and its limited life span - and that of the septic leach field that will cost over $5000 to replace some time in the future. |
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![]() Staber washer |
EFFICIENT CLOTHES WASHER We purchased an ultra efficient washing machine in 2001. Staber washers use 67% less water, 50% less energy, and 75% less detergent compared to traditional top load agitator washers. It is the only top load horizontal-axis washer made in the U.S. There are also many design advantages compared to front load washers. While these units are pricey at over $1100, the energy savings pays for it rather quickly. It saves electricity on our well pump which is a significant energy user (240 Volt, 1600 Watt), not to mention propane used for water heating and electricity costs to operate the washer. |
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![]() 50 gallon rain barrel |
RAIN BARRELS We have 2 50 gallon rain barrels that we use in the warmer months, one that captures water from the house roof, and one from my workshop. We use the water during dry spells to water the garden and vegetable beds to reduce the load on our well pump. The water is also handy for flushing toilets etc. during long power outages when the well pump can't operate. Our first barrel was an expensive "Y2K preparation" barrel ($90.00 in 1999!). I made the second one from a surplus 50 gallon plastic barrel painted dark green to prevent the sunlight from causing algae growth. I attached a hose spigot at the bottom, and raised it on bricks so it was above the level of the garden to improve the flow. A cover prevents debris from entering. A company in Maryland called Aquabarrel sells barrels and kits for conversions along with downspout adapters etc. |
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![]() solar collectors |
In 2001 I built a solar augmented heating system for my workshop. You can see all the details of that project on my site. Solar heated water is used to heat the radiant concrete floor via tubing embedded in the concrete. This system has significantly reduced my use of propane for heating the building. A tankless propane heater augments the stored solar heated water as needed. To find a solar installing contractor in your area, click here. |
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![]() digital thermostat |
PROGRAMMABLE THERMOSTATS In my workshop I installed 2 digital programmable thermostats. I set back the heat outside my business/working hours to save heating energy when I'm not using the space. There are 3 types available: 24 hour, weekday/weekend, and 7 day timers. My thermostat allows me to set 4 different temperatures at 4 adjustable times each day on weekdays and different settings on weekends. |
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![]() spray in foam insulation |
BUILDING INSULATION When I converted my open barn to a heated work space, the first thing I did was to contract the installation of spray in isocyanate foam (Corbond) that completely seals the building with high R value insulation (R7.5/inch). My workshop is considered "super insulated" with R30 walls and R45 roof, and it is very well sealed around doors and windows. The single best way to reduce your heating and cooling energy costs is to insulate your building well. Most buildings are poorly insulated and have many air leaks that allow heat to escape. You can get a free energy audit from most utility companies which may include evaluating the insulation of your building. Simply sealing the cracks around doors and windows can dramatically reduce your heating costs -- see below. |
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![]() Marvin Window AEP insulating panel |
INSULATING WINDOWS Windows are the single largest source of heat loss in most homes. The folks that built our home in 2000 installed very good Marvin windows. These units are wood framed with tightly sealed vinyl sliding seals and they have dual pane low E glass filled with inert gas. With all these features they have a very high R value (about 2.5) and low air leakage. When I converted my workshop, it had very inexpensive wood windows that were loose fitting and drafty. In the winter I seal them from the inside using AEP window insulation panels. These light weight double glazed plastic panels clip onto the inside of the window frame like a window screen and form an airtight barrier that seals the window. At $8-9.00 per square foot they represent the least expensive solution for leaky windows in older homes. In February 2008 we installed these panels throughout the ground floor of our passive heated home, click here to learn more. |
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INSULATING WINDOW SHADES Our passive solar home has many windows in the master bedroom and 1st floor living/dining area. Even though we have the best windows we can afford - double pane, gas filled, low-E, wood framed with sealed vinyl sliders the R value is still below 3.
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![]() my solar mower |
In 2005 I converted a 22" gas lawn mower to use a battery powered motor that charges from solar power. This means that I am eliminating one one the most polluting machines that there is since there are no emission controls on small gas engines. Also my mower is much quieter and uses free energy! Click here to learn more about how I did the conversion. |
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![]() cordless weed whacker and chain saw |
CORDLESS YARD TOOLS I have use our Ryobi cordless weed whacker since 1999 and it is still going strong on the original battery. It runs for over an hour on a charge. Recently I purchased a cordless chain saw that runs for 5-10 minutes on a charge. It's enough to cut small trees and large fallen branches up to 8" diameter for firewood. |
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compost jar |
COMPOST We cook mostly vegetarian meals, and keep a compost container on the kitchen counter. All our vegetable scrap goes in this well made ceramic jar which has a lid with a carbon filter in it to reduce the smell. Of course we try to empty it before the point where the contents start to rot! We dump the contents into our EnviroCycle composter which sits at the corner of our front porch. This is the best unit we have found since it is so easy to use, just turn it over 3 times every so often to mix the contents. There is no smell, and the roller base collects the compost "tea" which when diluted makes excellent fertilizer. The compost itself gets dug in to our flower and vegetable beds. |
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![]() vegetable beds |
HOME GROWN FOOD We have 5 raised vegetable beds that we seed with various veggies including peppers, onions, tomatoes, squash, lettuce, peas, beans, chard and a variety of herbs such as basil, dill and rosemary. We have 4 high bush blueberry bushes that produce a bountiful crop. And our crab apple tree produced 70+ lbs of fruit from which we canned over 28 jars of crabapple butter this year (2007). We also make an effort to purchase locally grown and organically produced foods from local farmers. |
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![]() 2000 Honda Insight |
HYBRID VEHICLE In 2001 my wife replaced her Acura Integra with a Honda Insight. This vehicle has consistently achieved an average of 58 MPG while also being an Ultra Low Emission vehicle. We love driving this sporty stick shift car and use it as our primary vehicle. At a purchase price of around $21,000 it is an affordable vehicle too. (Unfortunately Honda stopped making them in 2006, but their Civic Hybrid gets 50MPG and is still available as it the very popular Toytota Prius) I am planning to replace my Chevy Blazer work vehicle with the Ford Escape Hybrid as soon as I can afford to. This SUV gets around 36MPG. It comes in a 4WD or Front Wheel drive option for around $23,000. |
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TripleE MEMBERSHIP (betterworldclub) Better World Club provides nationwide roadside assistance. They are the Nation's Only environmentally friendly auto club. Membership Includes eco-travel services, discounts on hybrid cars, insurance services, free maps, auto maintenance discounts and bicycle roadside assistance. They donate 1% of annual revenues toward environmental cleanup and advocacy (unlike the AAA). Discounts for hybrid and biofuel vehicles. |
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![]() tire pressure gage |
TIRE INFLATION If your tires are low it can cost you as much as 3% of your gas mileage. In order to remind myself to check tire pressure I installed these neat little gauges on the stems that are green if the pressure is good and red it it's low. A set of 4 retails for around $20.00. |
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wood stove ![]() cutting firewood |
HEATING WITH CLEAN BURNING WOOD STOVES We heat my wife's basement studio with a wood stove, and I also supplement the solar/propane heating in my workshop with a stove that I added in 2005. There is a misconception that wood burning is bad ecologically. Modern stoves are very efficient, do not produce much soot or smoke when operating correctly and they use a sustainable fuel. I also improved the effectiveness of my workshop stove with a heat reclaimer as well.
In my wood working business I am able to burn a
lot of wood scrap from my furniture business.
I also gather
standing dead wood from our woods and windrows that I cut up and stack
inside. |
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RECYCLING Our town recycles cardboard, paper, newspaper, clear glass, plastic, tin and aluminum. With 2 home offices we end up with a lot of paper that we can recycle. Since we ship and receive a lot of goods, we re-use as many cardboard boxes as we can yet we still have a lot of packing materials to recycle. We take our surplus packing peanuts and bubble wrap to the local shipping store for re-use. In the winter we are able to utilize newspaper and cardboard to light our wood stoves as well. |
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drying zip lock baggies |
RE-USING ZIP LOCK BAGGIES By simply rinsing them out we re-use baggies many times over before they wear out or we leave food in them so long it gets moldy! We use the stronger freezer type bags since they last longer. |
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PAPER OR PLASTIC? . . . NEITHER! Both types of bag have trade-offs that are unacceptable. We use cloth bags to carry our groceries, and re-cycle the plastic and paper bags from other stores. Whenever practical I decline the use of a shopping bag from most stores. Our local Shaws grocery has finally started selling green canvas bags emblazoned with their logo, we have several Trader Joes canvas bags we have had for years. |
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![]() rechargeable batteries ![]() |
BATTERY RECYCLING We also recycle all our rechargeable batteries by taking them to local drop off sites which are located in retail stores nationwide (including Radio Shack) that are organized by the RBRC. Click here to find your nearest drop off site. I have recycled batteries from laptops, emergency lights, cameras, power tools, cell phones etc. Rechargeable batteries contain toxic cadmium, lithium, lead, acid and other chemicals that don't belong in our landfills. Did you know that automobile batteries have been recycled for many decades? They are one of the most recycled products in the world! |
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![]() printer cartridge |
PRINTER CARTRIDGE RECYCLING Since 1999 the US postal service has made free mailers available for returning printer cartridges for re-use. The plastic mailers are typically located in the lobby, no postage is required. We have recycled all our cartridges this way. |
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![]() septic pumping |
SEPTIC TANK Every 3 years we have our 1000 gallon septic tank pumped out. The company that provides this service delivers the contents to a processing facility that recycles the waste into fertilizer. This particular form of recycling came as a surprise to us too! Yes, I know, you're thinking "These guys even recycle their own shit!" |
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If you are not part of the solution, then you are part of the problem. What have you done to help heal our planet today? |