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VAWT vs. HAWT

HAWT – Horizontal Axis Wind Turbine
VAWT – Vertical Axis Wind Turbine

The main advantage of the HAWT design is efficiency. Typically it’s about 40% more efficient than the vertical type. Power is also smooth and fairly consistent. HAWTs last longer because there is less stress on the bearings.

One of the most compelling reasons though, to use a VAWT is that they require less parts (no yaw mechanism), and can operate in slower wind speeds. You can place VAWTs closer to the ground (where maintenance would be easier) even though there is less wind.

Here is a good example of Vertical vs. Horizontal:

If the horizontal wind turbine was up higher where the wind was less turbulent, I’m sure it would be spinning just fine. The VAWT design however can do very well in all kinds of wind despite the fact that it’s less efficient.

There is a new company on the market that sells parts and DIY kits to build your own VAWT. I really like the design because of it’s simplicity and low cost. They also show you step-by-step, how to create your own alternator. You can see the plans and videos on my VAWT project page.

www.windgenkits.com if you want to take a look.

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Wind power solutions at home

With the world’s ever-increasing demand of power being more than its supply, it is about time that we take concrete steps to save power. Apart from being conscious about the usage of power and water at home, one can employ pollution-free and cost-effective power solutions at our homes. Solar power solutions and wind power solutions are the two of the most efficient solutions that can replace the conventional power solutions employed at our homes.

These solutions can help you combat power outages, reduce your electricity bills, and also help the environment.

This article will explore the cost-effective wind power solution that you can employ at home.

Wind power solutions work best when the following conditions are met:

  • You have a house or farmhouse spread over a big area. Typically, wind power solutions are employed in areas that spread over an acre.
  • The average wind speed in your area is around 11 miles per hour. If you stay in a place that has little wind flow, your system will not work. Consult an expert before installing the wind power solution at home.
  • You need to draw water from external sources. You can install a wind power system even when you do not need to draw water from outside. However, if you need to draw water from outside on a regular basis, a wind power system offers the best solution.
  • Your house needs a lot of uninterrupted power supply. Combating those power outages is easy with the pollution-free wind power systems. You need no longer worry about a break in your work because of a power uncertainty.

A typical wind power system comprises of a tower and five blades to churn out wind energy. The length of the wind tower varies depending on the location of your house. You may need a longer tower if you are in low-wind zone; you can work with a shorter tower if you live by the beach. Using a wind generator, this wind energy can be converted into useful electrical energy to be employed at home for running various electrical appliances. You can even store the power generated for later use, making wind generators more efficient than convention power systems.

If you are confused with the wind power jargon, here’s a piece of information for you. The terms, wind mills, wind turbines, and wind generators are used to refer to the same machine.

More information on do-it-yourself wind systems.  www.earth4energy.com

Which do-it-yourself energy guide is the best?  Click here to find out.

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The world’s energy crisis

The world is gradually marching towards a severe energy crisis, what with an ever-increasing demand of energy overstepping its supply. We have always known that the energy we use everyday is not unlimited, yet we take it for granted. Oil, gas, power, even water has limited availability. Yet, we have not taken enough precautions to deal with a possible energy crisis. When I say ‘we’, I am not referring to the governments but to all of us, the common people.

Oil and gas have already become too expensive, and with each passing day, they are moving towards being extinct. Some ignorant people think that energy crisis is a myth. They fail to see the big picture. There have been three major energy crises so far – the 1973 oil crisis, the 1979 energy crisis, and the 1990 oil-price hike, apart from several regional crisis.

Prices have been rapidly increasing for the last five years, thanks to the ever-increasing demand and the increasing shortage of energy resources.

How soon will it be all gone?

Are the cynics right in saying that we are making a mountain of a molehill, or is the energy crisis for real? Picture this: We have already exhausted 50 percent of the available oil. At the current rate of consumption, the rest of the oil will finish in 32 years! Imagine if the rate of consumption increases! We all know it is bound to increase. So, even the present generation will face an acute energy crisis in the later years, let alone future generations.

What are we doing about it?

Are we equipped to face the impending energy crisis? What can you and I do to tackle it? For starters, we need to understand the importance of energy in our lives and stop taking it for granted. We have to minimize the use of oil, gas, electricity, or any other fuel. We cannot afford to waste any available energy. It is also important to spread awareness about limited availability of energy resources. Simple things like joining a car pool, switching off car engines at traffic lights, and minimizing the use of gas and oil in everyday activities will help a long way in crisis-readiness.

What are the alternate energy options?
As a responsible world citizen, start looking for alternate energy solutions like solar energy and wind energy. Employing these alternate power solutions is extremely feasible and cost-effective. You will not only cut down your power bills but also contribute to a better future of the world.

More information on do-it-yourself energy systems.  www.earth4energy.com

Which do-it-yourself energy guide is the best?  Click here to find out.

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The future of electricity

When the future of electricity is discussed, quite a number of thoughts come into mind. Let’s look at a few of such ideas.

  • Electricity will be wireless!
    Wouldn’t it be delightful to see no wires in the house even with an uninterrupted supply of electricity? Will the future see wireless supply of electricity? Apparently, it will, according to industry experts. Last year, a team at the Massachusetts Institute of Technology conducted a wireless electricity experiment successfully. This dream has never been far-fetched, and with the success of wireless electricity experiments, this dream will soon come true. So, it is not very far that we will see electrical appliances charging themselves off air!
  • Consumers will have complete control!
    Industry experts believe that in future, your power supply will not be dependent on the electricity department but on you. You will have complete control on how you want the power supply to reach your place. You may not be required to pay the mandatory amount when you are vacationing around the world, shutting off the house. Experts see a variety of control options for consumers in the future. Now, whether this future is in the next ten years, or twenty, or a fifty years is not known, but what is known is that the future will see the consumers in control of what they use.
  • Electrical energy will be clean!
    Do you know that the remains of electricity production emit enormous amounts of carbon dioxide in the air? The future of electricity is perceived as green and clean. Given the concern for the environment, the electricity in future will make use of renewable sources of energy, leading to a clean environment. Currently, electricity is produced mostly by consuming fuels that are on the verge of being extinct.
  • All things will be electric!
    OK, we have already seen electric cars and electric shavers, what else will the future see? May be, electric shoes! Combs, toothbrushes, watches, glasses, even clothes may become electrical gadgets. If these sound far-fetched ideas, visit the futuristic shops at Akihabara in Japan for a glimpse of the future.
  • There will be no outages!
    More than anything, consumers look forward to seeing a future with absolutely no power outages. Alternate power solutions promise to take us into a future that has no power interruptions. With increased dependency on power for everything, consumers need to have an uninterrupted supply of power.

More information on do-it-yourself electricity generating systems.  www.earth4energy.com

Which do-it-yourself energy guide is the best?  Click here to find out.

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Solar power solutions at home

With energy sources depleting at a rate faster than they are being built, it is only wise that we use the abundant energy available for free – the solar energy. Apart from the easy availability, solar energy helps control environmental pollution. Most of us shy away from installing solar power solutions at home thinking them to be expensive and cumbersome. You will, however, be surprised to know how easy it is to employ these power solutions. Moreover, these will help cut down your power bills. Finally, you will be delighted to know tat you are doing your bit to save power for the future generations.

This article will explore the various solar power options available for home use.

Solar cooker: A solar cooker is a cooking utensil that uses absolutely no fuel for cooking. You can cook food for up to five people in the small box. If you are thinking that using a solar cooker will reduce your chances of spreading up a varied platter on the dining table, you will be surprised to know that you can not only boil food items in the cooker but also roast and bake! The only limitation with the solar cooker is the time it takes to cook. However, given the free source of energy it uses, this is a great option for cutting down those sky-rocketing bills and saving some power.

Solar home lighting: A solar home lighting system converts solar energy into electrical energy for your home. This is done via cells that are charged with solar energy. So, in the night, if you wonder how the lights are on in the house, it is because of the solar energy stored in the solar cells. You can install the solar home lighting system in your house and not worry about the electricity bills anymore.

Solar heating system: Installing a solar heating system in your home helps cutting down your electricity bill along with saving the world’s quickly-exhausting power. If you are worried that a solar heating system will turn your sweet home into a gadget house or that it will be an expensive investment, your concerns are misplaced. Companies providing solar power solutions for homes make it a point to install aesthetically-pleasing heating systems in your house. As per as expenditure is concerned, investing in a solar heating system is wise because you get a return on your investment within 3-4 years, giving you absolutely free service after that.

More information on do-it-yourself solar power systems.  www.earth4energy.com

Which do-it-yourself energy guide is the best?  Click here to find out.

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