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Всеки знае, че може да се генерира енергия със слънчеви панели, но чували ли сте някога за слънчеви колектори? Противно на общоприетото схващане, не са същите като слънчеви панели. Докато слънчевите панели превръщат слънчевата светлина в електричество, слънчеви колектори работят според съвсем различен принцип. Тук разликата между слънчеви панели и колектори е накратко представена: Каква е разликата между соларни панели и слънчеви колектори? Слънчевите панели ви позволяват да черпите от слънчева светлина, за да преобразувате в електричество. Слънчевите колектори са подобни на слънчеви панели също са монтирани на покрива, но те отдават топлината си от водата. Слънчевите колектори заедно с резервоар за гореща вода и помпа са част от по-голямо цяло, а именно слънчеви бойлери. Като бонус се явяват слънчевите бойлери, които предлага до четири пъти повече енергия на квадратен метър от слънчеви панели. В допълнение, при покупка на слънчево право на бонус от мрежовия оператор. Ако инсталирате слънчеви панели до 10 киловата, може да се радвате на повече икономия. Има изобилие от сянка на вашия покрив? Не се инсталират слънчеви панели за ефективност. Ако изберете слънчеви бойлери, ще имате проблем със сенките. Слънчевите бойлери са най-евтиният вариант Имате ли ограничен бюджет? Ако е така може да изберете най-доброто от слънчеви бойлери. Тези слънчеви панели имат по-висока цена. След комбинация от двете системи може да се спрете на трайно решение. Слънчевите панели използва електричество в дома и нагревателя за затопляне на водата. Екологосъобразни системи Независимо дали ви избирате слънчеви колектори или панели и двете системи са добри за околната среда. Инсталирането на една от тези системи дава възможност за значително по-ниски емисии на CO₂ , тъй като ще трябва да се ползва далеч по-малко изкопаеми горива.
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Tag Archive | pros and cons of solar energy Go Green By Using Solar Energy Sources For Home Effciency Active and passive solar energy sources may just be the easiest way for you and your family to start living green, Solar power refers to the light and heat from the sun that is trapped and then converted into usable energy. Wind power, wave power, and hydroelectricity, are other, more common, forms of renewable energy technologies and are more commonly used to generate electricity for homes and businesses. Solar energy is by far the least used of the major beneficial energy types. Although the use of solar energy has a long history, until recently it has not been possible to harness the massive amounts of energy needed to power a town or city. However, as an individual you can easily use solar technology to power your home. There are 2 types of solar power, active and passive, using an assortment of these resources your family can save a heap of money year after year on your utility bills. Plus you’ll reduce your carbon footprint and helping to care for the environment. As a starting point look into using more passive solar energy, it’s easier to use and manage. In a perfect world we would all have south facing houses so that we could more easily utilize natural light. However, the world is not perfect nor are our houses. So we have to manipulate things a bit in order to make our homes more energy efficient. Natural light can involve any selection of materials with positive thermal characteristics. Such as double paned windows. Using drapes and blinds is a way to effectively use passive solar energy to help you reduce your energy costs year round. In the winter natural sunlight can warm a house and reduce the amount of energy used to heat your house. Open the blinds early and let in the natural light to warm the house. Then in the early evening begin closing your blinds and drapes to keep the heat from drifting back through your window panes. Of course, in the summer you do the exact opposite. Active solar energy come from solar panels or solar water heaters. An array of photovoltaic solar panels hooked into your power grid or a battery pack is the perfect alternative to rising costs of electricity. Solar panels can be installed in any area of your home where the sun would naturally shine. Many people opt to have them installed on their roof, but that does not always have to be the case. If your backyard is large enough you can build your array off the ground. There are numerous Federal, State, and City rebates that can be applied for solar energy systems. Making the installation of solar nearly free, if not totally free. Of course if you own a cabin or a boat you can make your own solar panels. Other solar energy resources include, solar water heaters, solar attic fans, and solar powered lighting. They capture sunlight convert it into energy for immediate or later use. Unfortunately, until recently, solar electricity has lagged behind other methods of renewable energy. Partly due to it’s high cost of installation. However, that is changing rapidly. Many people are choosing to make solar panels and create their own solar arrays. Depending on where you live you can qualify for government rebate programs and get a sizable chunk of your solar panel system paid back to you. Mass produced solar energy is, for the most part, still in it’s infancy, but for individuals who only need small amounts of solar power, it can be the easiest way to reduce your energy bill and live green. Common Solar Power Systems for Homes Are you one of those homeowners who are dreaming of having solar powered homes? Perhaps you’re already familiar with DIY solar power kits. The idea may sound inviting however a lot of people are scared to create their own solar power system. Solar power is usually available in three kinds. You too can use any of these powers gradually. People usually associate solar power with solar panels. But you see, solar panels are not the only source of power. You can choose among the several components known today. Take a look at these solar components that you can use at home. Solar cookers – this is already a common way of using solar power. Some people may find the cooker slow in terms of performance but if you’re not rushing, you can surely cook on time. You can use the solar cooker to roast, bake, and boil. This is best suited for a small family with a maximum of 5 members. You will no longer need fuel since you will be using only sunshine. There are also no emissions or smoke. Solar thermal systems – this is an ambitious system but it’s simply an update of the oldest known consumer technology. In this system, you will need solar panels. From the panels, the sun’s heat is transferred to a water tank. The water in the tank is heated. Your home can also be heated by putting some pipes. This was already available back in the 80s but it was rather expensive. Today, the thermal systems are more affordable and efficient. Solar generators – many homeowners are now utilizing solar generators for alternative power. The generator makes use of photovoltaic cells where the power inverter is hooked. You can use the solar generators for your lighting system at home. The electrical power is stored in the batteries and you can use it later. By using solar generators, it would be possible to run some electrical appliances. If you have $200, you can already create the generator. A wealth of information can be found on the net if you simply do your homework and look for useful info. By purchasing the DIY kits, you can create your own solar power system. There are also instructional materials available online that provide step by step instructions on how to create solar panels or cells. It would help a lot if you conduct a search online and read the step by step instructions there; that way, you can determine if you can carry out the project or not. Solar power systems are not that difficult to create especially if you already have a considerable knowledge about it. All you will need to do now is to establish a workable budget so that you can start with the right project that you can afford. You can start with very simple solar power systems for your home like the solar generators. The generators are much more affordable and easy to make. After some time, you can now make more complicated plans like the thermal systems. Solar power for homes is an excellent alternative to those who want to save on electricity and help save the earth. Don’t think twice and if you have the money to purchase the materials to make solar power systems, go for it. In the coming months, you will surely benefit from it. Solar Energy – New Discoveries The day may not be far off when the use of solar energy becomes a norm. There is now a deep conviction among experts that given a few years time, solar power will be in high demand that the cost will go down, inexpensive enough to undercut the prices of oil-generated electricity. Previous predictions that it will still happen in a decade may no longer be true. The anger generated by the recent prices in oil and its vulnerability to market forces and other events may have already been enough to polarized people, governments and scientific communities into seriously considering a reliable alternative energy source. You can not get a source more reliable than the sun. Even today homes that uses its power does not only benefit from the silent, energy generating, inexhaustible power of the sun, it also spikes up the prices of their homes. Those that have solar powered homes are even reimbursed for the surplus power that they supply to the power grid. Presently, heliostats, photovoltaic cells and plate collectors are being used to collect the energy by focusing these panels towards the sun or constructing and installing the panel’s on spots where the sun shines most. Development in technology as we all know often has a snowball effect. It never stops rediscovering and reinventing that the speed of development could often be surprisingly fast. Today, a polymer foil, thin as a sheet of paper and lighter by 200 times when compared to the regular glass collecting plates, are being developed. Chances are, these new inventions and discoveries could very well have a great potential for mass production. Previously, the glass-based materials used for heat collection need expensive substrates and require additional support for mounting due to its weight. The polymer foil, being very light could now be attached even to the walls of a structure. So confident are scientists in the development of this technology that while the polymer foil is being developed, a plastic solar cell, based on nano technology is gaining breakthroughs. This plastic material can collect the power of the sun even on a cloudy day through harnessing the infrared rays is believed to be five times more efficient than the current technology. While plastic materials for harnessing the power of the sun are not new, it is only recently that this plastic composite could harvest the infrared portion. Previously, only the visible rays are generated, the infrared part, which is half of the power of the sun, is invisible. Currently, the best plastic solar cells could only harness 6% of the suns energy, with further study and development, this new plastic solar cells are expected to harness 30% of the suns solar power. Scientists and researchers alike agree that ultimately, solar farms will be harnessing all our energy requirements and costs of power will drop. Today the price of solar powered energy is about 3 to 4 times per kilowatt hour compared with conventional electricity. That could change dramatically though the development of the existing technology and recent discoveries. The roller pressed flexible plastic materials and the polymer foil are only two of the best hopes in arriving at a cleaner, greener and safer environment that could ultimately free the planet from its dependency on the depleting supply of oil. Facts about Solar Energy and Solar Power Plants The earth receives more than enough energy from the sun in an hour to supply the world’s energy requirement for the whole year. Unfortunately, only a tiny portion of it is harnessed and the world still relies on power plants that burn fossil fuels. The good thing, though, is that there is a constant increase in demand for solar energy; and over the years of continuous development, solar panels are much cheaper today. During peak hours, the maximum power density that the sun can give is about 1kW per square meter. In other words, one square meter of solar panel can produce as much as 100 GWh (gigawatt hours) of electricity in one year. That is enough to power 50,000 houses. If a solar power plant is build on 1% of the total land area of the Sahara desert, it will satisfy the world’s energy requirement. The efficiency of solar panels depends on several factors such as pollution, clouds, temperature and atmospheric humidity. Solar power plants are very similar to other conventional power plants – with one significant difference: The majority of power plants draw their power from fossil fuels like oil, coal and gas. When power plants burn fossil fuels, they produce greenhouse gases that contribute to global warming. Solar power plants or solar thermal power plants (or Concentrating Solar Power plants) utilize the power of the sun’s rays to generate electricity. The process could not be any simpler. The solar panels receive heat from the sun, which will be reflected to the receiver. The receiver converts into steam the concentrated solar energy. The steam is stored on tanks which will be used to turn the turbines and generate electricity. The whole process does not involve any burning of any fossil fuels. Thus, solar power plants do not contribute to global warming. The increase in the use of solar energy will bring down the demand for oil. Today, there are more than 10,000 households with solar energy systems and the number is constantly increasing. If the demand for solar energy as well as other forms of alternative energy, the demand for oil will drop and the cost fuel will likely to follow. Residential solar energy system can turn your electric meter backwards. Given that you are connected on a power-grid, the excess energy that your solar energy system produces will go to the electric lines to be used by other homes. As a result, any excess energy you give will be reflected on your bills. Your electric supplier will even pay for the electricity you supplied. Residential solar energy system can save you money. While the initial cash out for installing solar energy system at home is big, the device will pay for itself in the long run. Not only you will save money on solar energy system, you also help the environment by not contributing to carbon emissions. Solar energy systems are reliable and can last for a very long time. PV cells are last from 25 to 40 years. Many manufacturers of solar panels give 25 years product warranty. This is the assurance that solar panels are very dependable. In addition, solar panels require little or no maintenance and the can be installed on most places where there is sunlight throughout the year.