Paint-On and Print-Out Solar Cells

March 14th, 2008
PaintPail

Great news this week on ScienceDaily, picked up by Nanotechnology News and other outlets that researchers from Swansea University have developed a paint coating for steel buildings that will generate electricity even in low light situations.

Note that this isn’t solar panels on the roof, but the enameled coating on the siding itself. Meaning that metal buildings - including garages, barns, equipment sheds, airport hangars, outlying megachurches and community buildings could all be generating electricity (some from the infrared spectrum current solar cells cannot capture) while they’re just sitting there enclosing space. Put a few regular panels on the roof too and it could be generating more than it uses on a regular basis.

But when I went looking at just how innovative this development is in the overall scheme of things keeping affordable alternative energy options safely insulated from regular people who might just put them to work, I found that the idea isn’t all that new, and isn’t anywhere close to being marketed to consumers of things like metal buildings (commercial or residential). Why do you suppose that is, given the sheer amount of money being funneled into research and development, as well as into actual production?

Continue reading »

25 Alternative Energy Strategies - 4

February 21st, 2008

For homestead and/or community independence

hybridhome

We’ve looked a bit at on-site electrical generation, transportation fuels and building technologies. In this installment we’ll look at some ways of putting things together into overall strategies for homestead independence.


Part 4: Hybrid Energy Systems

In a previous post a short video was offered about as small, 1Kw hybrid energy system using solar and wind offered by a company in Canada. Whether you’re planning to go off-grid with storage batteries or negotiate a price for your excess production with the local utility (and get a “backwards meter”), the same thing is true of energy supplies as is true of general homestead success - diversify. So Here are five hybrid systems, some good links and some cool ideas for planning your alternatives…

Continue reading »

25 Alternative Energy Strategies - 3

February 20th, 2008

For homestead and/or community independence

Homestead

A Happy Solar Homestead

When we discuss alternative energy strategies, any able homesteader is going to be concerned with building and various secondary retrofits to homes, barns and outbuildings. The more energy the homestead can gain passively - or conserve passively - the less energy will be required to supplement.

In these strategies 11-15 of the series, we’ll look at some of the ways a homesteader can use smart, green building practices and technologies to lessen their dependence on supplied energy sources.

Part 3: Building Technologies & Alternatives

11. Passive Solar Siting and Construction

PassiveSolar

Whether you’re building a new house or barn, or simply retrofitting to what’s already there, strategies for making the most of nature where you live will help to save on energy inputs.

To make the most of passive solar, consider how much direct sunlight falls on your homesite throughout the year. If you get ample sun (have a site that has an ample southerly exposure), plan accordingly. Big windows (with no significant overhang) can provide direct solar heating in the winter. Dark stain or paint on the south wall will also absorb heat from the sun. Conversely, walls that are mostly or entirely shaded during the day, plus the north wall, should have as few windows as is reasonable.

Limit heat gain in summer by planting deciduous trees (apples are good) fairly close. Also bear in mind that any south-facing roof is a good place to put solar panels or solar collectors for hot water (or both). If you do install these, you’ll want retractible awnings for your south windows because you don’t want any summer shade trees interfering.

Green Building Basics

Continue reading »

25 Alternative Energy Strategies

February 18th, 2008

For homestead and/or community independence

This series will provide an overview of the most promising energy systems and strategies for homestead or rural community independence. Most of these are available right now, some can be put together by the handy homeowner or community action group, and some will be available in the near future. Combined with common-sense conservation practices these can contribute a great deal to the independence of individual homesteads and rural communities willing to work together.

These technologies and ideas will be divided into particular technologies and presented together - 1. Electrical production; 2. Transportation alternatives - vehicles, fuels and power to operate the kind of equipment necessary to a rural lifestyle (trucks, farm and garden equipment, remote generators, etc.); 3. Building technologies and direct alternatives for heating/cooling and their applications; 4. Hybrid systems that can even out production and tie together for constancy of supply; 5. Collective strategies for small, cooperative communities striving for self-sufficiency and willing to invest together for alternatives that benefit all.

Part 1: Electrical Generation

AltEnergy

We use electricity to light our homes and outbuildings, refrigerate our food, wash and dry our clothes, prepare our food, provide our in-home entertainment (music, television, computers), and sometimes to heat or supplement our heat during the winter. The “average” electricity use per home in the US (this is something we can personally adjust downward by conservation and appliance/heat alternatives) is ~900 Kilowatt hours per month. Get that down to ~700 for your home/homestead, and we’re talking less than 8,500 KwH per year.

What are the best alternative sources for that much on-site electrical generation?

Continue reading »

Energy Independence: Part III

January 7th, 2008

A River Runs Through It!!!

BarnesWheel

One of the most desirable characteristics of a chunk of land that any determined homesteader looks for when purchasing is water. Wells are expensive to drill and getting more expensive, so a good many people in appropriate areas of the country will be seeking either an already developed spring-fed system or a piece of property that boasts springs that can be tapped. But for energy purposes it’s more important to have a creek or two running through the property, as these can be developed to produce power for either the household water system or for the entire homestead.

Our homestead is lucky to have two creeks, one on each side of the north-south ridgeline that divides the property, both of which drain the National Forest on this south-facing slope of mighty Mount Mitchell, and both of which run all year long without freezing over. These are small creeks unless it’s raining hard in the high country, and the one on the house side of the ridge boasts more springs and greater downhill grade than the one on the nearly inaccessible ‘other’ side.

Our water system originates from a spring bubbling up among the roots of a gigantic tulip poplar tree near the creek. A depression collects more water than silt, and this water is transferred through 2 quarter-inch copper pipes slightly downhill to a small, capped cistern made out of a 4′ tall section of 2′ wide concrete pipe with a concrete lid that can be removed to de-silt when necessary. The bottom of the pipe is buried about a foot in the ground and is not sealed because it doesn’t have to be. This allows it to be mostly self-cleaning, as the silt slowly percolates out and back into the creek. 1″ pipe from the top of this first de-silting stopover takes water to a large, 750-gallon concrete cistern (that is sealed at the bottom and lined), around which we built a spring house enclosure to protect the pump wiring and cistern itself.

Continue reading »

Building It: Log Home Advantages

October 16th, 2007
Ducat

In my last post I started talking about building your home, and introduced the subject of log and timber frame housing. These homes are becoming more and more popular all over the country, and offer some rather large advantages for homesteaders in a number of ways.

First and foremost, log and timber frame homes are environmentally friendly. There are companies producing “kit” homes in various parts of the country from farmed pine logs, and there are even a few specializing in ’salvage’ timber. Those are standing dead or down trees, usually from large forest tracts (publicly or privately owned), harvested at little or no cost to the harvester because harvesting is part of the forest management strategy.

In my southern Appalachians, for instance, we have large stands of southern pine and hemlocks that have succumbed to pine bark beetles and wooly adelgid infestations. These insects get underneath the outer bark and kill the trees by destroying that thin layer of inner bark that the tree depends upon to transport water and nutrients from the roots to the limbs and needles. While treatments have been developed and are now available to landholders like us, it will only save the young trees. The older trees have already succumbed, and local environmental regulations even demand that landholders take down dead stands (or burn them).

Continue reading »

Housing: Buying, Building or Making Do

October 10th, 2007

Part 1: The Pros and Cons

BeforeAfter

Wise Living Journal blog is oriented toward people who have chosen to live closer to the land than most do these days, and who are willing to take responsibility for as much of their lives and life choices as is possible in this modern world. This generally means those living off the edges of crowded cities or suburbs, or those lucky enough to have found a bit of countryside to call their own.

I’ve covered the basic homestead tool kit, started talking about some basic home repairs and maintenance jobs the homesteader can do for him or herself much cheaper than they can hire someone else to do. I’ve talked a bit about planning yard and garden space to make the most of your surroundings. And these subjects will come up again and again, as there is plenty to cover. But this sub-series is about housing itself.

Continue reading »