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Overview of Green and Renewable Energy
In this article we are taking a closer look at what we believe are the most important both renewable energy and green energy sources out there. This is where the focus and innovation should be put if we want to keep the earth in a healthy condition to generations to come in the future. Let’s dig in deeper and see what this is all about.
The Sun
The sun is the source of all the other energy forms we are discussing in this article, so it’s only natural to mention it first. The sun is going to keep shining for millions of years in the future so we can safely label it as renewable. In the last couple of years the technology of photovoltaic cells have blossomed. These are able to produce electrical energy from the photons the sun emits towards the earth.
The Wind
The wind is like we mentioned above energy that comes from the sun. Different temperatures make sure that the wind is always moving particles around in the air. These particles have motional energy. How can we harness this energy? There are many methods for this. One of the most common methods to use this energy is through sailboats, but to get electrical energy out of it we need to use wind turbines. The wind power pros and cons list is still not as economically as we want it to be, but with improved technology and more incentives from the governments, it will soon be.
Waves and Tides
There is a lot of research being done on harnessing the energy from waves and tides. While there is still a lot more work that needs to be done on this area, it looks very promising. Only the future will tell if we have room for such technologies.
Geothermal
Lastly, but still a very important method, is geothermal systems. These require to dig down pipes deep underground to collect the heat that comes from the earth’s center. Read up on geothermal energy pros and cons if you want to learn more
The climate crisis is rapidly getting worse. We need to act as fast as possible to be able to sustain the earth the way it is today for future generations.
The Advance Of Solar Energy
Solar panels give us so much hope for a future with less pollution. As fuel sources in the Middle East continue to dry up and as the cost of fuel continues to rise, more governments and investors are looking seriously at the alternative energy sources available to us.
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Along with wind energy, solar energy continues to be one of the top areas of development.
Right now, there are several countries ahead of the United States when it comes to creating solar power. Germany currently leads the way in solar powered development with somewhere in the neighborhood of 17,000 megawatts of solar capacity. In contrast, the largest project in the United States is currently still under development out in the Mojave Desert of Calfornia. It is slated to be a whopping 1300 megawatts when complete.
Making solar power profitable is one of the biggest challenges. Right now, electricity typically sells for about 25 cents per Kilowatt. Solar panels cost about $7 per watt of electrical capacity to install on a house. That means it will take many years of operating before a solar panel plant begins to pay for itself and turn a profit. So many years, in fact, that often the solar panels are completely exhausted by the time they have paid for themselves.
Because of this cost, we are likely to continue to see the two extremes of solar energy Either we will see extremely large plants where the economies of size can have the upper hand on the otherwise exorbitant production costs. Or else, we will see solar panels used in small applications where their small size allows them to be easily transported to remote locations.
Several people have even begun using solar panels to power their cell phones and laptops to give them increased mobility, as well as the peace of mind that they can get power wherever they are. When shopping for the best solar cell phone charger you want to read the reviews of people who have used them, as well as choose a company that has a long track record.
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It may be awhile before we see solar power take a front seat in world energy. Until then, we can find little ways to use the sun to make our lives better.
Why Harness Wind Energy
Wind energy is rapidly improving in terms of wind turbines in use across the globe that
generates electricity and supplies it to the grid. Why exactly is wind energy becoming more popular? There are many reasons for this, but there are some main reasons that stand out from the crowd. We are taking a closer look at these reasons and what makes them so important for our future.
Wind energy is a renewable source of energy. This means that we can use massive quantities and wind and never have to worry about using up all the reserves. Wind energy can be traced back to the sun, meaning it will be around for billions of years in the future, unlike sources such as fossil fuels.
Wind Energy is what we call environmentally friendly or a green energy source. Unlike sources such as fossil fuels, generating electricity in wind turbines is considered to not be harmful to the environment and non-polluting. If you compare facts about other energy sources, such as geothermal energy pros and cons with wind energy pros and cons, you’ll find that these work together and potentially reduce the impact of the climate crisis.
The technology used in modern wind turbines is getting better every year. Many large countries, especially China, have begun investing huge amounts of money in this renewable and green energy source. There is no doubt that the future holds better efficiency for generating electricity from the wind.
Wind energy is one of the cheapest alternatives for generating electricity from the wind. On top of this, the prices are expected to go down when the technology and efficiency of the turbines get better.
In the last couple of years the sales of residential wind turbines have skyrocketed. If you compare the wind energy pros and cons with geothermal energy pros and cons, you see interesting parallels, and maybe the future and renewable energy isn’t as far from being realized after all?
Change With Renewable Energy
Change, hope, faith….
Words that presidential campaigns use to ride the wave of victory. What are these words, if not backed behind the people that believe them. We are headed down a path of destruction of our environment, of our future children and of ourselves. As a world we need to begin to take the next step to a better tomorrow.
What?
The green revolution.
Making tomorrow cleaner then today, is the goal so our planet will remain beautiful and perhaps even regain some of its past glory. The truth is that we as a race have been selfish. We take what we please from wherever we please with complete disregard for the consequences of our actions. Sure, a lot of the problems we caused were strictly naivety, but if that was just simply true, then why have we not corrected some of these actions ourselves?
What steps have we already taken?
Reduce, Reuse, Recycle – this mantra has began the reusing of materials to create new items. It is a step in the right direction, however it is needed on a much higher scale. Meaning that everyone anywhere should be responsible.
Researching alternative sources of energies. There are many alternative sources of energy 
as you can see in advantages and disadvantages of renewable energy. The greater in-depth our research the faster these renewable energies will become viable. I suggest doing some of your own research into what are solar panels.
We have also began efforts in keeping our streets clean as well as regulations on emissions from factories and vehicles.
Whats needed?
We need to step up all of our efforts, and when we do this world will be better for it. Energy friendly appliances and conserving water, gas and any unclean energy we conserve and do not use unless we have to.
I hope my faith in renewable energies causes change.
Solar panels are a great way to help improve your home and a good start for green living.
How Does A Solar Feed In Tariff Work
If you’ve considered installing a photovoltaic solar power system in the past then you’re likely familiar with the ratio for the return on investment that typically applies.
If you happen to live somewhere that is reliably sunny most of the time then the figures pan out quite well in favor of installing solar panels. If however you live, let’s say North Europe, where there is reduced daylight during the winter months and even the summer months don’t guarantee plentiful unobscured sunlight, then the amount you get back means that the payback period can exceed forty years.
This is not only too long for most people to wait, but the panels themselves typically claim a useful life span of only twenty years or so. However, a Feed In Tariff can change all this quite dramatically. Put simply this ensures that you get paid a heavily subsidized rate for electricity that your solar panels generate. This is often much more than the price you would normally have to pay for electricity, so it suddenly changes the game to favor solar power in even normally unpromising circumstances.
The UK currently operate a scheme whereby you get paid well over four times the normal price of electricity just to generate it. In other words you earn very good money from your solar panels even if you keep all the electricity for yourself. If you do send some back to the main grid, then you get even more via an additional Export Tariff that ensures you get paid almost five times the going rate!
At this level of subsidy you can expect to generate revenues of about £1,500 GBP annually from a 4 kilowatt solar power installation, which means that you can now completely recoup the investment costs in roughly ten years and thereafter you’re coining it for as long as your panels last. The UK government are currently offering to support this scheme (including index linking the payments) for twenty five years, which would give anyone installing solar power now a profit of over £20,000 GBP.
A great deal for anyone who is able to invest in this scheme, but not so great for everyone else because the underlying fact is that solar power is still not able to stand on its own feet economically in northern latitudes, and hence ordinary consumers will simply pay for the subsidy with higher energy costs.
Solar Energy Pros and Cons
Solar energy is steadily becoming more used both for homes and in the industry. We are
taking a closer look at what the potential and advantages of using energy from the sun, comparing them to the disadvantages.
Massive Potential
Solar energy is estimated to have a potential of over 7000 times what we need, available all over the earth. There is no doubt that the possibilities for harnessing this energy are interesting.
No Pollution or Emission
One of the biggest advantages with the use of solar energy is that there is no pollution or emission. This is crucial in our planets development towards more environmentally friendly energy solutions to fight the climate crisis
Several Different Uses
The most common way to use solar energy is through heating of a substance e.g. water. This heat energy can be used directly as heated water for e.g. a swimming pool or by a heat exchanger for increasing the temperature in your house. Solar cells have made it electrical generating possible.
In the recent years solar energy for homes has become more popular. There are good reasons for this, one of them being the increasing electricity and energy prices. Solar cells can be very low cost once the initial costs of construction and equipment has been taken care of. The same technology of solar panels can also be used for charging batteries of different devices. A 12 volt solar battery charger can be used for everything from cell phones to your car battery.
The climate crisis is getting worse. There is no doubt that we need all the help we can get from renewable energy sources such as solar energy. The problem with most of these sources is the economy. They are simply not competitive with e.g. oil and gas. We need to help these projects with incentives. Their potential is too
Criteria for Building a Passive House With Residential Solar Power
The passive house is a home that provides thermal comfort without the use of
“conventional” heating, ie the boiler and radiators, or similar systems. The energy needed to balance the heat of the building is typically provided with non-conventional systems (residential solar power or heat pump to heat the air of the energy recovery controlled ventilation).
The conventional heating system can be eliminated if the energy needed inside the house is very low, conventionally less than 5 kWh per square foot per year. These benefits are obtained with a very careful design, especially with regard to the sun, with the adoption of high-performance thermal insulation on outside walls, roof and glass walls and through the adoption of controlled ventilation systems for energy recovery and with solar panel installation.
Passive house has only three criteria:
- a frugal annual heating – cooling allowance of 4,733 BTU (British thermal unit, a traditional unit of energy equal to about 1,055 joules) per square foot
- an annual cap on primary energy of 11,1 kilowatt hours per square foot for all energy needs including heating and cooling, along with water heating, appliances, and other devices
- the building must be essentially airtight with 0.6 air changes per hour at 50 pascals of pressure.
Each benchmark is many times lower than the targets set by current U.S. energy codes and guidelines.
Passive houses are born in Sweden and are used mainly in Germany, Austria and the Netherlands and in other northern European countries. The first certified passive house project in the Unites States was actually an educational building. Completed in 2006 the BioHaus was designed by architect Stephen Tanner for the Concordia Language Villages campus in Bemidji, Minnesota.
The cost to build or get built a passive house made of wood can vary enormously. It depends on the type of construction required, the quality of materials and assembly. It depends also if you choice environmentally friendly products like Residential Solar Power.
Rechargeable Solar Batteries
Solar Batteries are yet another way people are saving some money and helping the
environment at the same. They do not need any electrical source to charge as they only use the sun. They maintain their own rechargeable batteries and can be used for your camera, ipod, cell phone, laptop, hearing aids and car battery along with most other commonly used equipment. Solar battery chargers work by collecting the suns rays through a PV solar panel and then transforming the energy into electricity and storing it in batteries.
There is quite a long list of advantages to using renewable forms of energy but we will just look at a few of the benefits of solar power here.
Though coal is a cheap way to generate electricity, it also contributes greatly to the sulfur dioxide in our air as well as to mercury pollution. In contrast, solar energy is very environmentally friendly and does not generate emissions, wastes or byproducts at all. Not to mention, the energy we get from the sun is completely free!
Considering that you can find sun pretty much anywhere in the world (during the day time anyway) a solar battery charger could be a great emergency back up. Most of us have had batteries die at some point when we really needed them and there was no electricity in sight. These work even on cloudy days though it will take it longer to charge.
Solar battery chargers come in many different styles and sizes. Most can be found in 6 and 12volt versions with 5, 10 or 20-watt power film solar panels. These can fold up, don’t weigh much and are great for outdoor activities. There are even DIY instructions that can be found for free on the Internet along with DIY solar panels for home but with so many on the market now it may not be worth your investment of time.
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Wood Burning Stove Are Making A Comeback
Interested homeowners are forced to look at alternative energy ways for heating houses as the constant rise in costs of fuel gives the issue a lot of importance. One of the
alternatives that can fit almost any need is the wood burning stove that can give the home the necessary comfort and warmth. It is quite common for people to continue to use their fuel burning furnaces with thermostats set low, and then obtaining the necessary higher temperatures when needed by the use of a wood burning stove. Some wood burning stoves are disadvantageous, but this can easily be overcome with the use of stoves that use a number of fuels. Just as for automobiles which use different fuels, you can also use a number of different fuels when you want to heat your home.
Choices of Fuel
Most wood burning stoves use tinder and wood and with a little care these same stoves can use paper or items made from paper. A multi fuel stove on the other hand is a very rugged appliance and can use a number of fuels to produce the necessary heat. Pellets or corn are commonly used in such stoves, but the other things that can be used include switch grass pellets, pecan shells, pellets, shelled corn, corn cobs, soy beans, chips and logs. You can also get some stoves that are specially designed to use sawdust and this finds great use among workers with wood, as this eliminates a product that would otherwise be just waste, and also helps to save money.
Styles of Stoves
The normal style of a wood burning stove is shaped in cast iron or steel in box shape or round in shape and supported by legs or a pedestal in the center, but you can get other styles that can fit into the decor of the home. A model that looks like a faux fireplace complete with mantels that are elegant and also has wooden surrounds is popular. If you are looking for a style that is more modern you can find stoves that have colored ceramic finishes that give a clean cut look. You can opt for a stove that only burns wood or one that uses a number of fuels, but adding such a stove to your home can add to the ambiance and warmth while reducing costs for heating.
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