Purchasing organic clothing is a challenging endeavor. In order to have organic clothing, you must first have an organic material. This can range from cotton to animal furs and leather. When you are picking what type of organic clothing you desire, you need to first determine just what types of clothing you desire. Organic animal pelts are exceptionally difficult to find. In many cases, cows and other animals used for leather are not fed organic grain, or have been treated with medications. Depending on how serious you are about the organic label, this can disqualify the pelt as organic. Acquiring organic cotton for organic clothing is a lot easier as the cotton industry has a rather high demand for organic cotton.

There are some designers and manufacturers that focus on organic clothing. However, many people interested in organic clothing have made the effort to learn to sew their own organic clothing. This allows them to pick the styles, colors and materials they wish in the clothing without any risk of non-organic agents entering the process.

Unfortunately, there are several downsides to organic clothing. First is the price. Organic clothing is more expensive, as the materials used to make the clothing is more expensive. Organic cotton requires more care in the field and a higher base cost to produce. In addition to this, obtaining organic dyes and threads can also be challenging.

There are several benefits to organic clothing, however. At the top of the list is the removal of harmful chemicals, such as formaldehyde. Formaldehyde is a known, damaging agent. If consumed by pregnant women, formaldehyde can cause health issues and deformity. In clothes, formaldehyde is used to prevent cotton clothes from wrinkling. The substance forms a bond in the cotton which prevents the wrinkles from forming and making cotton easier to deal with. However, those sensitive to formaldehyde will notice skin irritation and discomfort if exposed to it. While there has been progress in making wrinkle-free cottons, there are still no alternatives to formaldehyde. As there are no dangerous ingredients in organic clothing, it is suitable for those with extremely sensitive skin and those who suffer from a variety of different allergies.

In order to keep organic clothing properly cleaned, you will need to choose your detergents and soaps with care. Avoid non organic cleaning agents, as the chemicals in them can bond with your organic clothing. Take care while using cleaning equipment and agents.

Timothy Greensland
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As the world advances, new technologies arise - or, in some cases, older technologies are exhumed and improved upon.

Although most people are under the impression that the field of photovoltaics is a new subject, based on recent invention, this is not actually the case. But first of all lets take a look at what "photovoltaic" means.

The word "photovoltaics" can be split up in to two parts: "photo" and "voltaic". The term "photo" is derived from the Greek word "phos" which means "light." A "volt" is a measurement unit for electrical force. So, literally, "photovoltaic" means "electricity through light." And that is exactly what the word means: "capturing solar energy in the form of light and converting it into electricity."

So how do we convert sunlight into solar energy and electricity?

In order to convert sunlight into electricity you need to use a material called a "semiconductor".

In simple terms, a semiconductor is a material that acts as an insulator, but is also capable of conducting electricity under certain conditions. We employ the characteristics of semiconductors when we convert solar energy (in the form of sunlight) into electricity. It is done as follows:

When a semiconductor (such as silicon) is exposed to sunlight, it releases small amounts of electrical energy. This is due to the process of electrons (bits of electricity) leaving the surface of the semiconductor, in response to being hit by light. We call this the "photoelectric effect."

Sunlight is made up of "photons", which are particles of solar energy. Not all photons are the same and not all carry the same amount of energy. The simplest explanation I can think of for this is that light comes in many colors - some forms of light are visible to the eye, and some are invisible (such as infrared or ultraviolet light). But, regardless of color or visibility, the fact remains that light is still light and the basic particle of light is still a photon.

When a photon hits a photovoltaic cell (also called a "PV cell" for short) one of three things occurs:

1. The photon can be reflected by the photovoltaic cell

2. The photon can be absorbed by the photovoltaic cell

3. Or (believe it or not) the photon can even pass right the photovoltaic cell. Only the photons which are absorbed by the photovoltaic cell are converted into solar energy (in the form of electricity).

When a photon is absorbed by the semiconductor (the material in the photovoltaic cell which produces electricity) the solar energy of the photon is passed to an electron in one of the atoms of the semiconductor. With this additional energy the electron is able to break away from its atom. Thus an electrical current is established.

This is the simplicity of what occurs in a photoelectric cell, when sunlight is converted into electricity. The electricity so produced can now be power an electrical device.

As you can see, the field of photovoltaics consists of the technology and the principles we use to convert solar energy into a usable form.

- Photovoltaic Systems

Now that we know what a photovoltaic cell is and how it works, lets take this a step further and take a look at what a photovoltaic system is.

A photovoltaic system has consists of the following components:

- A "photovoltaic module", or "pv module". This is a group of photovoltaic cells connected together, commonly referred to as a solar panel, though the terms "PV module" and "solar charger" are used to describe it as well.

- One or more batteries to collect and store the solar energy, which was converted into electricity by the PV modules (or solar panels, solar chargers, or whatever you choose to call them).

- A "charge controller". This an electrical device which prevents the batteries from being ruined through overcharging, and which also prevents electrical current from flowing back out of the battery into the PV module or solar panel.

- "An inverter." An inverter an electrical device which changes the electricity produced by the PV modules into alternating current. Alternating current is the type of electricity you get from your wall sockets at home. An inverter is only used with PV systems when you want to produce alternating current as your end result. If you run your house on solar energy, the inverter is installed between the batteries and the fuse panel.

A good quality PV system will operate for more than twenty years. The PV module, having no moving parts, has an expected lifetime exceeding thirty years. Most system problems occur due to poor or sloppy installation.

So how much electricity does a photovoltaic system generate?

The average PV system will generate about 180 kilowatt-hours per square meter, in most areas of the United States.

A PV system rated at 1 kilowatt will produce 1800 kilowatt hours per year.

In case you are not clear on what a "kilowatt-hour" is, this is a way of measuring the amount of electricity produced or consumed.

Let me put it in monetary terms, which might be easier to understand. Many PV panels are guaranteed to last twenty years or more - most even claim to last thirty years. Even if we factor in the natural loss of efficiency in the PV modules over a period of twenty to thirty years, a PV system will generate close to 36,000 Kilowatt-hours in twenty years and 54,000 kilowatt hours over thirty years.

This is the equivalent of $10,000 worth of electricity at current energy prices.

Therefore, though initial installation of a PV system might seem a little costly, in the long run it is far cheaper to run on solar energy.

There are different types and sizes of solar panels (photovoltaic cells) which produce varying amounts of solar power.

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For more information on solar cells and solar power, please visit Solar Cells, DIY Solar, or Solar Power News.