When we hear about how thinking globally and acting locally, power is often not at the forefront of our minds. But perhaps it should be. The environmental impact of transporting electricity is easily as taxing on the world climate as transporting hard consumer goods can be. Transporting power creates a direct waste of that power, creating a larger carbon footprint.

An immediate question springs to mind, however. Isn’t all power produced at least somewhat locally? In short, yes. However, it is important to narrow down what we consider local. If your power is produced 100 miles away, that’s not terribly far in today’s world, but some of the electricity will be lost over that 100 miles. If the power is produced on your roof or in your backyard, none of it will be lost (or at least very little of it).

There are a set of factors at play here, primarily technological. While our technologies for producing power have advanced, our technologies for moving that power have not advanced- or least they haven’t advanced much. There are some promising technological advances on the horizon, but they have not yet come to fruition. Thus, in short, every mile that electricity has to travel is a mile in which the amount of electricity will degrade. By the time all is said and done, you may be left with 80% of the power you created, leaving 20% as waste.

It seems clear, then, that truly green power is created close to where it is used. This prevents the degradation of the signal that occurs in power lines, in transformers, etc. However, that is not the only benefit. Producing local power takes advantage of whatever natural form of energy is avaialable- be that solar, wind or hydro.

As it becomes easier and easier to build solar cells and wind turbines (not to mention micro-hydro systems) at home, it is worth considering ones environmental impact. The benefits are numerous- it save the environment, saves your power bills, and could even make you money (think tax breaks or even selling power back to the power company). Numerous resources are available to the home builder of green power, allowing it to be used in many different environments (rural, urban, suburban). Between the guides available today, the necessity of saving the climate, the potential financial savings, and the long-term satisfaction of building green power, building your own home power system is more attractive than ever.

Damon Westchester is the editor of www.build-green-power.com.