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April 21, 2009

Saving Green By Building Green

by Starke Jett, Northern Neck News
Virginia, United States [RenewableEnergyWorld.com]

Going green is a way of life for one retired couple in Northumberland County. They have taken steps to get off the power grid by investing in several alternative energy producing methods for their 2,500 square foot home near Reedville.

A closed system that recirculates well water is more than twice as costly as a normal heating system, but the extra cost is recovered in about seven years by energy cost savings.

Gordon and Judy Burgess bought 45 acres of waterfront land on Taskmaker Creek in 2003. Gordon (pictured above, left) designed their home there to be as energy efficient as possible.

The most comprehensive and original component of the plan was to heat the house with a geothermal system that Burgess modified by building a conditioned, heavily insulated, sealed crawl space under the first floor. Warm or cold air generated from the geothermal unit located there is circulated through vents in the floor into the main living space on the first floor.

The sealed crawl space creates what is called a "plenum," according to Robert Wilburn, the president and CEO of RMC Mechanical of Callao. His company helped Burgess install the geothermal system.

"Basically it's a big piece of duct," said Wilburn.

The geothermal open loop system circulates water, pumped from a 700-foot artesian well, through the heat pump like unit. The water is a constant 55 degrees year round, so it is warmer than outside air in the winter and cooler in the summer. It heats or cools the Freon in the furnace, which heats or cools the house.

There is an independent back up propane system for additional heat in case of power failures, but Burgess said that he rarely uses the back up system.

Both systems rely heavily on extra insulation. The home has six inches of regular insulation with an extra inch of Styrofoam.

Compared to a conventional system, this design produces four units of heating or cooling for every one unit of energy compared to conventional heating systems, according to Burgess. That adds up to savings of 40-60 percent on the family's heating energy costs, according to Wilburn.

"The house is really easy to heat and it is even heat, without hot or cold spots," said Burgess, a retired elevator mechanic who believes that his sealed crawl space geothermal system is unique. "I have not seen or heard of anything like this anywhere."

Robert Wilburn said that, as far as he knows, the ductless system is original. He said that sealed crawl spaces are becoming more of an industry standard because they reduce mold and dampness problems and save on energy costs. He said that his company sells up to 10 geothermal systems annually.

Wilburn said that the cost for an open loop system is comparable in price to a conventional system. A closed system that recirculates well water is more than twice as costly as a normal heating system, but the extra cost is recovered in about seven years by energy cost savings.

"They are becoming more and more popular," Wilburn said of the geothermal systems. He said that homeowners are now able to take a 30 percent of the installation cost federal tax credit for such a system since an alternative energy bill became effective in February.

Burgess also installed a solar hot water system when he built the modular Cape Cod. He bought some of the components for this system at an estate sale for $5 because nobody else wanted the parts and did most of the installation work himself.

Last year, Burgess became the first Northumberland County resident to be approved for a wind turbine that is unique in the Northern Neck, according to him and county administrators across the region.

The modern metal, three-bladed windmill is produced by Southwest Windpower of Flagstaff, Ariz. and is a smaller model of the turbines that are used at wind farms. It stands on a nearly 70 foot tall pole and rotates to capture the breeze. Beginning with winds of seven mph, it generates power for the Burgesses who have a net meter on their home. Under ideal conditions, the meter runs backwards, giving them credit with the power company.

Burgess said that there was resistance to the turbine idea when two other county residents tried to get permits before he applied. Both those permits were denied because officials and neighbors felt the machines would be too noisy and a threat to birds.

In 2007, Burgess and Northumberland County Administrator Kenny Eades arranged to have a turbine set up on the courthouse lawn in Heathsville to demonstrate it's size and noise levels.

Officials and other interested parties determined that the machine makes no more noise than a refrigerator and considering the Burgesses' isolated land, the application for special exception permit to install the turbine was granted.

"We're hoping some of the laws can be changed so that more people can get these easily," said Burgess. He feels officials should be encouraging the use of alternative energy sources.

Area county administrators said that they are considering the possibility of more people applying for wind turbine permits in the future. Lawmakers may consider making wind turbines a permitted use, so applicants won't have to pay special fees or get variances that are required now.

"If we start getting a lot of requests, it could become a permitted use," said Eades. "It helps having one up. It gives people a baseline. As people get familiar with them they should get more commonplace."

"We haven't had any formal applications, although there have been a couple of inquiries," said Richmond County Administrator Bill Duncanson. "While we want to encourage folks to use alternative energy sources. From my research, it seems that most of Virginia doesn't have the wind classification to provide enough return from turbines. I'd hate to see folks spend money that may not provide a payback, but the coastal areas are a little different. They don't call it Windmill Point for no reason."

"It's on our radar screen," said Don Gill, Director of Planning and Land Use in Lancaster County. "We've already talked about making them a permitted use in the Planning Commission about six months ago, but are still researching the subject."

"Every time energy rates go up, people start looking at alternatives," said David Whitlow, County Administrator in Essex County.

"We had one inquiry within the last six months," said Wstmoreland County Administrator Norm Rasavi. "We may look at allowing them if there is enough interest, but right now we are just researching the topic."

Planner Beth McDowell handled that request for information, which she said was from an individual that was considering selling the turbines. She told the party that currently the county required a $600 special variance for anything that exceeded the zoning height restriction like the tall turbines.

A third of the cost of the Burgesses' turbine was underwritten by James Madison University in exchange for data from Burgess about how much energy he is producing. He brings in students to see the turbine as part of an educational exchange.

Burgess plans on installing roof solar panels to produce more power. He hopes to get off the power grid entirely. The combination of geothermal, solar and wind technology he is using may prove to be a blueprint for other Northern Neck residents' energy independence.

Starke Jett has worked full time as a reporter for the Northern Neck News for more than a year. Previously, he worked as a freelance writer and photographer for regional newspapers and publications, including Chesapeake Bay Magazine and the Northumberland Echo.

This article originally appeared in Northern Neck News of Warsaw, Virginia and was reprinted with permission.

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Reader Comments (10)
 
April 21, 2009
Hi All:

I don't know what they are saying about open and closed loop geo. Closed loop geo is the norm... open loop is the exception and is more difficult due to filtering issues etc. Open loop depending on what the source is can be more efficient than closed loop but will usually be more expensive. Again, vertical well closed loop is the typical system that everybody does followed by horiz ground loop which is also a closed loop system.

As a side note, in the first explanation paragraph, he implies they did an open loop but a few paragraphs down it sounds like they did a closed loop. Not clear at all....

It is great to see people trying to be energy independent and efficient. I wish him the best of luck...

.....Bill
Comment 1 of 10
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Hi everyone,

I appreciate Mr. Gordon for his efforts to go off the grid totally. And its good to know that some people know about the new techniques in using renewable energies. But I reckon that the government and some NGO's should come forward with some initiatives that can educate people with the importance of the renewable energy and conservation measures for energy.

However, its the government's responsibility to bring much needed awareness and help the people who want to go green with their homes and buildings.

I am planning to have a solar PV power generation for my home in India and want to go off the grid totally, and the central (federal) government here has some finance incentives like soft loans at very cheaper interest rates for homes or buildings that might want to go green.

I am working in an NGO in New Delhi and I am working on the techniques that can help in designing consumer awareness programs where more number of people can know about such initiatives. at the same time I want to com up with a policy intervention and policy advocacy program to help the government to come up with incentive programs and awareness programs for people. I would appreciate any inputs regarding this work from people who can throw some new light on the issues mentioned here. please feel free to mail me at praveen@cseindia.org or praveenmadimetla@gmail.com

To know more about CSE's work please visit www.cseindia.org
We also have a fortnightly magazine 'Down to Earth' please visit www.downtoearth.org.in, andlos our environmental portal at www.indiaenvironmentalportal.org

Praveen Madimetla
Research Associate
Air pollution control unit
Centre for Science and Environment
New Delhi, India
praveen@cseindia.org
Comment 2 of 10
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April 22, 2009
It is always good to hear that we are making progress towards low energy use buildings. I am the president of ASAP•house Inc. a producer of modern modular and flat-pack homes that are very low energy users. The house I live in a 2,500 sf four bedroom house was produced by my company. The house is heated and cooled by an open loop geothermal system, the only power we use is electric and we produce over 65% of it with a 10 kW photovoltaic array and heat our pool with solar hot water. It is not rocket science these days to achieve this level of energy consumption. ASAP•house does all this and a rather reasonable cost. We can deliver houses in the north east states for now.

To find out more about ASAP•house please visit our website at www.asaphouse.com.

Laszlo Kiss, President
ASAP•house Inc.
Sag Harbor NY
asaphouse@me.com
www.asaphouse.com
Comment 3 of 10
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April 22, 2009
I had an open loop geothermal heat pump installed in my 1978 raised ranch house that is close to 3900 square feet, last fall. This has made my house now 100% electrical. My house is well insulated and I have seen phenomenal savings through a very cold and harsh Michigan winter regarding costs of heating my house. The advantages of such a system in terms of even heat throughout the house (no cold spots), and savings have been more than I had imagined possible. My electric bill has actually been reduced, though it now covers my heating and cooling, as well as the regular electric usage! I am now investigating a hybrid wind/solar system that could take me off the electrical grid. How exciting this whole process has been!

What I do find, though, is a public who is generally unaware of the possibilities and alternative "green" systems available today and how it could translate into tremendous personal savings in heating and cooling, as well as being good for the environment. Many people I have spoken with do not have a clue what a geothermal heat pump is, or how it works. We need more education of the public in alternative energy options. This kind of publication is geared more towards the professional, but an effort must be made to move that educational approach into a more public arena.

Personal success stories, such as the Burgess' story and mine should be publicized more. There is still a tremendous amount of resistance to "new" systems at every level...from county/town permit officials to individuals who are unaware of the advantages that these systems can create, while also being good for the planet. Thank you for including the Burgess' story on this site. A happy consumer is great advertising and helpful in moving people to make changes. It is also time for "officials" at every level to embrace these changes, and become more supportive, instead of creating more barriers to the process.

I wish you all well! And may our future be green!
Comment 4 of 10
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April 22, 2009
To Jean Rishel;

What was the cost of the open loop system, and who installed it?
Do you live in the country or are you on a large town or city lot?
What kind of wind turbine are you thinking about? Do you have height restrictions where you are?
What where your standards for insulation for your house?

Dave
klappstein@albertacom.com
Comment 5 of 10
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April 22, 2009
Is it just me or does anyone else have a problem with pump and dump (open loop) systems being termed 'green'? Precious few open loopers take the trouble or expense to responsible return said water to its source. Water is an extremely valuable resource and this practice contributes to the lowering of source aquifers. Help me out here, please ... I just don't get it.
Comment 6 of 10
April 22, 2009
Hi MT:

Its called green just because of the BTU side. You are right, if it is an open loop from a pond it should go back to a pond. If it is open loop from a well, it should go back to the well or a second well. I would hope they are doing one of those if it is indeed an open loop system,not clear though...

.....Bill
Comment 7 of 10
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April 24, 2009
As with earlier comments, is it a closed or open loop system? I agree that wasting the water in a open loop system seems counter productive.

To Jean Rishel: Where do you live in Michigan? I wonder about geothermal retrofitting on an existing in-floor radiant heat system.

Has anyone come across research or case studies that retrofitted this type of system?
Comment 8 of 10
April 25, 2009
Hi JWM:

You can do geo either as a new install or retro, it really makes no difference as such. If you wish to keep the existing distribution infrastructure for cost reasons or you just like it very much, as maybe in a radiant distribution system, then of course you have to put in the heat pump which interfaces with that distribution system. In terms of the geo heat pump itself, the input side of the heat pump is more or less independent from the output side in terms of being air or water output. I.E. whether you use air or water heat extraction really does not dictate open or closed loop, vert or horiz, etc..
On my house I went from a forced hot air oil system to a horiz ground loop solar assisted solution (heat mode only). You can pretty much design anything you want... The biggest thing you have to watch out for is that the well drillers (vert solution) don't short drill you. If that happens your water temps from the ground will be pathetic and your resistance backup (if you have that option) will run like crazy, driving up the electric bill.

.....Bill
Comment 9 of 10
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Hi Bill,

Thanks for the reply. So are you saying that a propane boiler radiant heating infrastructure fluids (carried by tubes in the light weight concrete floor) can be heated by the heat pump output? Am I thinking about this correctly? After reading about this on Wikipedia

http://en.wikipedia.org/wiki/Geothermal_heat_pumps

I see the various set up options. However, do you know whether propane fuel sources tend to be cost competitive with ground source heat exchangers?

Wikipedia has a nice summary of the overall environmental impact but again not sure where propane stands in this scheme.

Jill
Comment 10 of 10
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