Until approximately a hundred years ago in the West, people only had recourse to renewable energy for heat and light for their homes. They burnt wood and sometimes coal or peat (OK, fossil fuels) and got up when the sun came up and went to bed with the sun as well. In, fact a large part of the world’s population still lives like that.

Things altered with mechanized industry and night shifts. Electricity providers sold the populace on being able to do more instead of just sleeping when it got dark, and the Western population got hooked on buying huge amounts of energy, mostly electricity and engine fuel, which was usually produced from oil and coal.

This idea soon travelled around the world and with rising affluence came emulation and other countries wanted the same. Now we are in the sad predicament where we have to admit that we rode the fossil fuel gravy train to its last stop without thinking about what we would utilize when fossil fuels ran out.

This is where the typical civilian comes in. You have to think about how you want to draw energy in the future. Do you want to be powered by keeping sucking unrenewable resources out of the Earth, or do you want to have as little to do with it as you can? Would you prefer to have everything you have now, but know that the resources that are powering your lifestyle are renewable?

If, like millions of others around the world, you would rather say ‘No!’ to traditional power production methods, then you have to take a stand. But not only in words, you really have to do some something about it physically.

This will mean investing a lot of money up front, which might not be a problem for you or you may even think that taking a stand is worth looking for a bank loan. These are admirable sentiments, but I would like to propose that there is another way to self-sufficiency.

You could make your own!

Why not? The technology has been around for decades and is fairly easy. Most reasonably competent teenagers can put together a bank of photovoltaic cells into a solar panel and then plug that into your home’s electrical system. And if a teenager can manage it, so can you. All you (and the teenager) will require is a solar panel kit and a schematical diagram. A plan in other words.

A solar panel kit can be bought locally from a DIY shop or from the Internet. A typical solar panel will take a few hours to assemble and will produce 100 watts of electrical energy. The electricity produced from these panels is then passed through an inverter that changes the current from DC to AC, making it usable by household appliances and the utility grid.

Do yourself and the planet a favour, get off the grid and start saving money and the planet’s resources, you will be surprised how easy it is once you get going. And do not forget, you can do it in stages of, say, one 100 watt panel a month until you hit self-sufficiency. It is not a question of ‘All or Nothing’.

Owen Jones, the author of this piece, writes on many topics, but is currently involved with a favourite topic, types of renewable energy. If you are interested in Sustainable Energy At Home, please click through to our site.

When it comes to converting your home into a solar home, there are several alternatives, because not all homes have the same problems, the same requirements or the same potential sustainable power sources. Therefore, if you are going to try a total conversion or even get off the grid completely, you will either need to do some do research or call in an expert to make a survey for you.

If you call in an expert, try to get an independent one, so that you can work out the prices of satisfying your energy requirements yourself. You will have to pay for such a report, of course, but you could carry out a report yourself with a bit of work on your behalf. In order to produce a solar home, you may find the rest of this piece interesting.

There are fundamentally two kinds of solar design: passive and active solar energy. Passive solar energy can be used to provide heating, cooling and natural light for your home. Active solar energy is used for powering home appliances, tools and lighting. It is the perfect blend of these two types of solar energy that you will attempt to accomplish, if you are trying to convert your home into a solar home.

You can make use of passive solar energy methods in many ways, although they are more easily built in during the actual construction phase of a new home. The largest area of glass should face south or be within 30 degrees of due south. This will catch the maximum amount of heat. This heat can then be distributed around the house by stone floors and stone walls.

The central heating ducting and furnace fan can be used to assist, if necessary. If the house becomes too hot in the summer, awnings or even solar panels could be dropped down in order to put the windows in shadow. When thinking of passive solar energy, you should try to think of means of supplying warmth and coolness without using electricity. For instance, a skylight at the top of the stairs will permit the warmest air in the house to escape, since hot air rises. This will result in cooler air to be sucked into the house at lower levels.

The other feature of a solar house is the generation of electricity by the deployment of solar panels grouped into solar arrays. Solar panels make use of photovoltaic cells to convert light into energy. This energy can then be used to power ordinary electrical appliances of all kinds or some or all of it can be stored in batteries for later use. Conversion from AC (alternating current) to DC (direct current) and back again, if necessary, is a simple matter.

Solar energy can also be used to heat water for the pool or for the home. The most usual type of system uses pipes filled with a type of anti-freeze to collect the sun’s heat and pass it on to tanks of water by means of a heat exchanger.

A solar home uses energy efficiency to minimize the necessity for heating, cooling and electricity. The use of higher grade lagging, more energy efficient windows, kitchen appliances and lighting than those utilized in traditional homes, will save you a lot of money and energy. As you can see, some of these changes, particularly the passive ones are structural, so hard to apply in many homes, but there is always something you can do to reduce your energy bills and gradually convert your home into a solar home.

Owen Jones, the writer of this piece, writes on many topics, but is currently involved with a favourite topic – alternative power sources. If you are interested in Sustainable Energy At Home, please click through to our site.

Global warming is one of the “hottest” issues nowadays. The current climate change is the worst yet to happen. Global warming is an overall increase in world temperature which is attributed to the increasing number of greenhouse gases trapped in the atmosphere. Searching an alternative energy source is considered a way of reducing the toxic emissions.

Greenhouse gases can be produced both by natural and industrial processes. The most abundant greenhouse gases on earth’s atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, ozone and CFCs.

There are several sources of greenhouse gases. Burning of fossil fuels and deforestation lead to higher concentration of carbon dioxide in our atmosphere. Without the trees and plants to take in the carbon dioxide emitted by burning fossil fuels, natural gas and petroleum products, all of the CO2 emitted stays in the atmosphere.

Also the use of CFCs or chlorofluorocarbons in refrigeration systems and in fire suppression systems and other manufacturing processes also increase the greenhouse content of our atmosphere. While the use of non-organic fertilizers in agriculture also lead to higher nitrous oxide concentrations, another greenhouse gas.

In the United States, greenhouse gas emissions mainly come from the use of fossil fuels as energy source. Approximately 82 percent of the greenhouse gas emission in the United States in 2006 came from the combustion of coal, natural gas and petroleum (United States Energy Information Administration). Meanwhile in Asia, Chine is expected to increase its emission of greenhouse gas because of the construction of old-fashioned power plants in its internal provinces. Currently, the carbon dioxide concentrations in the atmosphere are the highest in 150,000 years. The 1990s was most likely the warmest decade in history, while 1998 was the warmest year (Greenpeace).

Not controlling the greenhouse gas being emitted by human activity can increase climate change the next hundred years that will be much faster than anything known and recorded in history. There are necessary steps to be undertaken to control the toxic emission that will soon be killing us.

To minimize the consumption of oil, petroleum and other fossil fuel, we should use energy efficiently. Energy that we use should be generated from renewable energy source, which would mean harnessing the natural energy from the sun, winds, crops, tides and waves.

Green energy is another term used to describe sources of energy that are considered to be environmentally friendly, which is also similar to the renewable sources of energy.

There are numerous ways of generating electricity and energy from renewable and natural sources that generate clean and safe energy. Wind, sun, and heat can generate electricity for less price and less carbon emission than those of coal and even gas.

Shifting the world’s attention to alternative fuel source other than relying on fossil fuel is among the solutions in resolving the drastic climate change. Greenpeace cited that with renewable energy and using it smartly, can deliver half of the world’s energy needs by 2050. Greenpeace also cited that it is feasible to reduce carbon dioxide emission to almost 50 percent within the next 43 years.

Governments are taking steps to use and tap alternative energy sources as main source of energy. The European Union leaders made an agreement in March 2007 to ensure that 20 percent of their nation’s energy should come from renewable fuels by 2020. This is part of their effort to cut carbon dioxide emissions and other greenhouse gas. There are even governments offering incentives to their residents who are using green energy.

Alternative energy source may not be the only way to reduce the greenhouse emission that human activity produce. There are simple ways in which we can do to contribute in reducing toxic gas emission and mitigate global warming.

Conservation of our natural resources is also important to slow the trend of global warming. Saving your rainwater runoff can save on your water bill. Save your water and buy a tank at Adelaide Rainwater Tanks or Victoria Water Tanks Unique version for reprint here: Alternative Energy Source And Global Warming.

For a long time, money used for good will was called charity, while money used to make more money was called investing. No more.

Today, the two concepts are forming into a financial arena called socially responsible investing. Both investors and mutual fund companies are implementing this new idea and discovering that they can be profitable and at the same time do some good for the environment and society.

Bob Guthrie, an investment broker with A.G. Edwards in Burlington, Vt. says, “Socially responsible investing means you don’t have to compromise your own personal beliefs to make money on Wall Street – whatever those beliefs are.”

Guthrie says that the idea of selectively choosing stocks for social reasons dates back to the early 1900′s. That’s when church members grouped together and refused to invest in tobacco or alcohol companies. He adds that the trend continued with investors ignoring corporations involved in the Vietnam War and those companies investing in South Africa.

So, yes, growth in this type of investing has ballooned during the past few years as more and more investors have moved social consciousness into the main street of investing. And the impact of this trend is being felt.

With help from stockholders, business practices concerning the environment are starting to change, said Rob Kruger, vice president of portfolio management at Progressive Asset Management. While the issues may vary, he said companies are realizing they will suffer if they aren’t viewed as being socially responsible.

“As this investing community continues to grow, a lot of proposals are being put forth by investors at annual shareholder meetings,” Kruger said. “A whole range of issues and activities is now being addressed.”

As part of its operation, Progressive Asset Management conducts research for socially responsible and eco-friendly mutual funds. The firm screens companies for environmental problems or nuclear involvement… whatever social issues their clients want investigated.

As the clock ticks, companies are becoming more cooperative if not anxious to talk about how they are more socially and environmentally responsible.

Guthrie agrees that business practices are changing and says American companies are aware of shareholders who are concerned with the environment.

“Make sure your hard-earned capital is not invested in companies with little concern for the environment,” he advises. “Keep these things in mind when you invest and corporations will, too.

Earth News Media is proud to sponsor global reforestation as well as help sustainable communities with their recycling programs, eco-tourism, water conservation and other environmental topics. This article, Socially Responsible Investing In The Environment is released under a creative commons attribution licence.

Solar water heating systems for homes can be seen on more and more roofs. These systems preheat the incoming cold water for baths, kitchen and to do laundry. When sized correctly, a solar water heating system will supply about 40-70% of your hot water demand. In order to qualify for the currently available federal tax credits however, your system must provide at least 50% of your water needs. Combine these tax credits with the higher efficiency of today’s systems, and it has become affordable for many homeowners to have a solar water heating systems.

Two types of solar domestic hot water heating systems are used in residential applications: the closed loop system and the open loop system. A closed loop system separates the collector loop from the domestic water side with a heat exchanger: the domestic water system is closed to the solar collectors. A freeze-proof liquid, usually a glycol solution, is circulated through the solar collectors and the heat exchanger, which is located in the solar storage tank. These systems are also recommended for areas with hard water. Closed loop systems unfortunately cost more than an open system. People living in areas where temperatures always remain above freezing can install open loop systems. The domestic water loop is open to the solar collectors and the incoming cold water is circulated directly through the solar collectors and then to the solar storage tank.

The type of solar collectors used determines the number and size of the solar collectors, for a given hot water demand. The two most widely used types are the flat plate collectors and the evacuated tube collectors. Evacuated tube collectors are more efficient and are recommended for colder climates and areas with a high number of cloudy and overcast days. These collectors however, are also more costly. An analysis of cost versus improved efficiency and output, can help you decide which type of collectors to use.

It is essential to mention that a solar water heating system will not replace your existing domestic water heater or eliminate the necessity for installing one in a new home. The intent of the regular water heater is to make sure that you have sufficient hot water during and after several cloudy days. A complete solar heating system also includes a solar storage tank. This tank is used to store the water that was (pre)-heated in the collectors. The (pre)-heated water then flows from the solar storage tank to the regular water heater where it is heated up as needed. The regular water heater will not need to run on most sunny days, if the solar heating system is designed well.

Where are you planning to put the solar collectors? I guesson the roof somewhere. The “somewhere” is the critical part. You have to make sure that the location you choose receives enough direct sunlight, all year. Numerous tools are available online to help you determine this. Some of these tools are free. Keep in mind though that some of these tools might not make allowances for trees. You can also contact a local solar heating system installer. Some will do a free analysis for you and they will include trees and tall buildings next door.

So now you have determined where the solar collectors will be installed on your roof. You hope. Because next you will have to make sure that the roof can support the collectors and the frame, at that specific spot. Check with a contractor, to see which roof re-inforcement and additional framing will be needed. Also make sure that you know what will be necessary to make sure the roofing will remain waterproof.

The next thing on the list is the solar storage tank. It should be located adjacent to your existing water heater. The solar tank will be about as big as a 40-gallon water heater. If you know you will have a closed loop system, you will also need some space for a pump and a small expansion tank. Access for easy maintenance is important as well.

Almost done. One more thing. The pipes. Where and how can you run them between the solar storage tank and the solar collectors on the roof? You have to look for either two locations that can each accommodate a 1″ pipe with 1″ insulation, or put them next to each other in the same chase. Hint: closets or walls behind toilets, if the first floor powder room is below the second floor bathroom. Avoid having to build pipe enclosures in the living room or dining room. This can get expensive and not very nice looking, unless you can be creative and hide the pipes behind a shelf.

Done. At least with a lot of the important initial research. Use the knowledge you will have gained after answering all the questions raised. You are now in a good position to either know what else you need to know to be able to design and install a solar hot water system for your home yourself, or hire a contractor for the work.

Avoid the same mistakes others have made before you when they were building a solar hot water system. Get educated and learn how to do a successful system.

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