My mom passed away in 2006, and her estate was finally settled in 2007. I had no idea what my brother and I would inherit, and from what the attorney, stockbroker and CPA said, it sounded meager. I was thrilled to find a check in my mailbox that would get me started on my remodel! Meager to a big-wig, perhaps, but abundant to someone living simply.

The first thing I looked into was solar thermal – hot water from the sun for domestic use. From www.energysavers.gov:

Solar water heaters – also called solar domestic hot water systems – can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the fuel they use, sunshine, is free.

Solar water heating systems include storage tanks and solar collectors. There are two types of solar water heating systems: active, which have circulating pumps and controls, and passive, which don’t.

Most solar water heaters require a well-insulated storage tank. Solar storage tanks have an additional outlet and inlet connected to and from the collector. In two-tank systems, the solar water heater preheats water before it enters the conventional water heater. In one-tank systems, the back-up heater is combined with the solar storage in one tank.

After much research, like that above, I called a solar installer, Valverde Energy. The owner, Larry Mapes, came out to the house to do an assessment. We first talked about my current and future water use. My two teenage daughters were going to fly the coop in the next few years, so water usage would dwindle. All those long, hot showers, mounds of laundry and constant dirty dishes would be a thing of the past when I settled back into living alone as I had done before having children.

So instead of creating a system for a family of three, which would be big and inefficient just for me later on, we decided on a smaller system that would be adequate for all three of us, and would rely on very little natural gas back-up as our numbers shrank. This smaller system could be expanded when the house is sold and another family moves in.

Once we’d made that decision, we talked about infrastructure. This isn’t very exciting and is nothing anyone sees, but it was necessary to get it done.

I am on a shared well with three other homes. For years, we have talked about putting in new water lines, but not everyone had the money at the same time, and our bank account wouldn’t cover it all. I went ahead and replaced the aging line to my house. The stub-in had to go in a certain place to accommodate the solar system, since I was moving the hot water heater as well.

Larry suggested tapping into the natural gas line in the new road adjacent to my property. My gas supply was currently propane, which is more expensive, and he said this alone would cut my energy bills. It didn’t take much to persuade me to switch! The water line came in from the south, and the gas line came in from the north. My yard was chewed up all the way around! Ah… remodeling…

The infrastructure upgrades needed to be done first, because those utility lines had to be in place for Larry’s crew to install the solar system and before we could pour a slab for the greenhouse. We joked that most women don’t care about these kinds of things in a home, because you can’t decorate them, but I was excited about the value of what he was proposing.

I quietly thanked my mom for making this possible. 515

More info on:

Solar hot water http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=12850

Valverde Energy http://www.valverdeenergy.com/

I will spare you the entire thought and building processes and show you what we finally decided on.

Since this is southwest orientation, my main concern was getting extra light and heat, since the winter sun does not come around to that side until late morning. I put three fixed skylights along the lowest part of the ceiling, which has worked well. The sun comes through them a few hours before it gets to the front.

In the New Hampshire house, the south facing windows were floor-to-ceiling. I wanted as much sun coming in as possible for daytime heating. Here in Taos, I wanted a planting bed close to the windows for maximum light, so the windows are in the 5′ space above the 3′ deep planting bed. In both instances there is a 1′ spacer between them for support.

Ventilation is as important as heating. Plants and people don’t like temperatures that are too hot, as much as they don’t like them cold. To keep everyone and everything comfortable, I installed:

• A glass door flanked by two double-hung windows. This allows more sun in winter and serves double duty to ventilate in summer.
• Two double-hung windows in the end wall
• Two VeluxR operable skylights in the upper part of the ceiling. This is where heat will rise, which made it the most logical place for a moveable vent. Air moves in through the windows carrying the heat out of the top vents. Moving air is cool air, so opening the windows and the vents cools off the greenhouse, even if it is hot outside.

The soil in the bed is to be part of the thermal mass. It will absorb the sun’s heat to keep the temperature levels even and keep the plants warm. The concrete floor and an adobe-lined wall on the northern side are also mass that will absorb sun and ambient heat to radiate back out at night.?

The ceiling is super insulated, and exterior doors lead into the four rooms of the house. There is no supplemental heat in the greenhouse. In the event there are many cloudy days in a row or old-timey winter temperatures of 40 below, I will sacrifice the plants as the greenhouse gets cold, but the heat in the other rooms will not be lost. The girls have small gas heaters in their rooms for the coldest days and nights.

The work was done enough by Thanksgiving to start seeing the benefits. My fuel bills that following winter were half of what I’d been used to paying. I cut my wood consumption by half with the new ceiling insulation and double pane windows, and my natural gas bill was about $40 a month at it’s peak with the girls using their heaters.

Come spring, I got an energy audit and a surprisingly good HERS (Home Energy Rating System) score.?

When everyone moves to Taos, they want to buy an old adobe home on an acre of irrigated land. I was no different. I searched for a house for three years. Some homes were perfect, but just out of my price range, some transactions fell through, and the perfect three-acre piece of land needed an expensive 1/4 mile long driveway through a swamp.

I stumbled across my current home in the newspaper in December 1998. It was nothing what I was looking for – 1800 sq ft of frame ranch on .87 acres of sagebrush – but it had three bedrooms, two bathrooms, a studio space and incredible mountain views. The biggest selling points, though, were the two covered porches (north and south) and the established flower gardens, strawberry patch and apple tree. It was in my price range, and the transaction did not fall through, so it was mine in January of 1999.

Do you remember my advice from last week? Don’t move in until the work is done! I hadn’t forgotten, so I shelled out one more months’ rent and upgraded my new home from afar.

I painted the walls with BioShield natural paint. I bought five gallon buckets of white and tinted them. The price was comparable to five gallons of toxic paint, so money could not keep me from creating a healthy home. I replaced the dark brown, cat-smelly carpet in the living room and bedroom with an oak Upofloor brand floating floor with a non-toxic finish.

While the contractors and I beautified my new digs, I watched the winter sun.

My observations showed that the winter sun drenched windowless walls. I was so in love with the porches, gardens and views that I hadn’t noticed! Common to Taos, picture windows face north and northeast to the mountain views. Very beautiful, but very cold! I knew then that my next project would be installing windows on the sunny side.

The house was oriented SE to SW, with the sunny side facing southwest. In a perfect solar world, a home should have an east-west orientation with the long wall facing south. This collects the most sun for maximum heat collection. You can have a variation of 15 degrees from true south, but up to 45 is acceptable. My orientation was ‘acceptable.’

That summer, I found a local warehouse of hundreds of wood windows recycled from a company that had gone out of business. I had measured my interior walls for available space and chose windows as close to the maximum size as possible.

In early October, just in time for winter, my new southwest facing windows were installed! While we had the walls open, we beefed up the insulation where it was thinning and sagging.

Over the following winter, I continued to watch the sun bathe the house inside and out.

The huge room my daughters shared was a two-car garage now enclosed in a previous remodel. The sunny side was mostly blank wall with two narrow windows across the top. I hired a builder friend to put in a glass door, and a large window on one side and a trombe wall on the other side.

A trombe wall is a window installed over a wall of thermal mass (concrete, adobe, water). Vents into the house are placed at top and bottom. As the sun heats the wall, warm air moves into the house through the top vent, and cooler air replaces it to be heated and moved back inside via convection currents.It is an effective way to use solar energy without having the sun directly in the house, if you don’t want to place a window to unwanted views, or if you want privacy.

The large window materialized, and the trombe wall did not (long, irrelevant story), but the solar energy I did harvest warmed the room during the day. It also hit the concrete slab and radiated a bit at night. This was not high-tech, but it served its purpose to cut the daytime heating down for that dark room.

Meanwhile, I observed the sun for several years. Plans for a major remodel percolated slowly and deliciously like fine coffee, and my restless, latent architect went to work with pencil, eraser and graph paper.

(Click for more information on trombe walls, Bioshield paint and Upofloor.)

After graduating from UNH, I worked on a couple of vegetable farms and a u-pick fruit farm and did some landscaping. What I really wanted to do, though, was build solar greenhouses. I called a local company that retrofitted them onto existing homes. The owner was excited about my enthusiasm. Remember, this was the early 80s, solar was not an everyday word yet, and not many women were carpenters.

In our initial phone call, he asked if I had any carpentry experience, or if I at least knew the terminology. Although I’d wanted to be an architect my whole life, I didn’t have the knowledge he needed. He suggested I work in a cabinet shop for six months to a year to learn carpentry basics. He recommended a shop to me, where I got a job right away. I was excited to get started on this new path!

I built cabinet doors for several months. I played with pine, oak, cherry, maple and birch studying their grains and the differences in how they looked and felt, how each acted with a saw and a sander, and how each responded to stain and varnish. It was quite an education, and I loved it!

I spent a lot of my day sanding those beautiful raw woods. The orbital sander was my pal. I came home covered in and throughout with sawdust every night. It was exhausting, physical work, and the conditions were far from ideal, but I never lost sight of my plan to build solar greenhouses.

After six months of radial arm saws, table saws, circular saws and joiners, the lesson I learned was that I didn’t like power tools. The orbital sander remained my friend, but the rest were bigger and scarier than me.?

There went my carpentry career!

When I left the cabinet shop, I took my newly acquired knowledge of building, terminology and woods along with the few hand tools I had to buy. Little did I know the following year would bring me my first energy efficient remodel.

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.

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 KalwallR 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 is a series of pods lined up end to end. You can see the drum laying on its side at the far end of the front 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!

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, which I repeatedly refer to, because, like I said last week, solar principles never change.

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

(Glazing and insulation materials to build Poisson’s solar pod and solar cones are available from Solar Components, www.solar-components.com/sun.html)

Greetings to all you energy conscious, eco-minded folks! I hope you are ready to read about solar energy and green building! 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. 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.

The 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.

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 an EcoBrokerR, a RealtorR specializing in green homes.

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.

The basis for generating electricity has not changed in over 120 years, when it was first created for the purpose of powering inventions in 1881. In a traditional turbine based power plant, some force is used to turn turbines which are attached to electrical generators. The force that turns the turbines tends to be steam, but the how the water is boiled to create the steam varies. Generally, either fossil fuel (oil, coal, natural gas) or nuclear fusion is used, though geothermal and solar power towers have also been used as to turn water into steam.

There is another way to turn turbines – via the direct method – which is how hydroelectric plants are run. When using hydroelectricity, a river (or part of a river) is damned, and the flow is diverted over the fins of a turbine, which turn it, thus generating electricity. Wind power also works this way by turning the blades of windmill, which in turn spins the turbines to generate power. For both methods to work effectively, a minimum amount of power needs to be constantly generated by water or wind to keep the turbine spinning. For hydroelectricity this is pretty easy, but for wind it requires that the installation site have certain natural characteristics to maximize turbine performance.

When we talk about solar for the home, we are not talking about a turbine-based solution. Instead we are talking about photovoltaic panels (also known as PV). Unlike the hydroelectic towers mentioned above, these panels do not heat water to produce steam and turn a turbine. Instead, they directly convert solar energy to electrical current. This electrical current can be immediately used, stored for later use, or redistributed to the electrical grid for a fee.

In our next installment we will talk about how PV can work in your home and the options available to you.

Using solar energy to generate electricity in your home is always a great step for people with the desire to go green. Solar is a freely available and renewable resource that is available anywhere in the world. With recent technical advances in solar cells, the amount of light needed to generate large amounts of power has decreased–which makes solar energy applicable for use in almost any home with normal electrical usage. With the rising costs of natural gas and oil, solar also serves as a great investment for your home.

Over the following weeks we will try to tackle all these questions and provide you with a how-to guide on how to choose, install, and pay for a solar array for your home. There are many ways to go about this and new options exist for the home (and in some cases, apartments). If you are curious about how to add solar energy to your home and have specific questions, feel free to leave a comment and we will try to answer as many as we can over the course of the series.