Climate change, the approach of Peak Oil, and rising energy prices are causing many people to look more seriously into alternatives. An energy-independent or "off grid" home is a worthy goal for many reasons. Done properly, it is less ecologically damaging than a conventional home; done humbly and in moderation, it is cheaper; and done with love and attention, it will reward you with a secure and inviting place to escape from the uncertainties of a resource economy.
Start With Conservation
- 1Cut your power consumption as much as you can. This reduces the size of the power system you will need and allows you to live lighter on the land.
- 2Consider living without electricity altogether. Invest in candles, a gas stove, and some kerosene lamps. Do your work during the daylight and when it gets dark, relax.
- 3If you must use electricity, choose only light bulbs and newer appliances that have been approved as energy-efficient by a reputable agency. Avoid large televisions and electronics with standby loads. If you have a computer, put it on a power bar that is turned off when it isn't in use.
Temperature Control and Insulation
- 1Heating is the major source of energy use in most houses. Replace leaky windows with high efficiency double paned windows. Put draft blockers at the base of exterior doors, especially at night. Put heavy drapes on the windows in the winter. Avoid air conditioning.
- 2Don't heat with electricity. Natural gas or propane are far more efficient, and less costly.
- 3Find out how your house is insulated, and if it is below par, replace it or add to it. Exterior rigid foam, blown-in cellulose, or an interior retrofit are all options. Insulation can keep your home cooler in summer, too.
Solar Electric Panels
- 1Install solar panels on the roof of your house. Hire a professional to do this if you are not comfortable working with electricity.
- 2Put a battery bank in the basement. The size of battery bank that you need is dependent not only on the amount of electricity that you use but also your usage patterns.
- 3If you want to run alternating current (what you are used to on the grid), you will need an inverter between your batteries and your interior outlets. A more efficient but less versatile option is to run the entire house on direct current.
Solar Water Heating
- 1Install solar hot water panels next to your solar electric panels. By running water or an antifreeze mixture from these panels to hot water tanks and to pipes in your floor, you can gain at least some of your heat needs directly from the sun.
- 2A more low-tech option that works in hot weather is to put a large barrel painted black onto your roof. The sun alone will heat water that can be used for showers, dishwashing or cooking.
- 3If you are north of the equator, you will need a south-facing rooftop or outdoor site to install these panels in order for them to function most efficiently.
Wind and Water Energy
- 1Use a small windmill for your domestic electricity needs if you live in a windy place. The advantage of a windmill is that it can generate electricity with no sun or at night.
- 2If you have a stream with a significant drop on your property, you can install a microhydro system. Like windmills, hydro turbines can produce electricity in any weather (as long as the stream is running), night and day.
- 3Windmills and microhydro systems are not simple things to install. If you choose to do it yourself rather than hiring a professional, be prepared for a steep learning curve. It is a worthwhile and rewarding path
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