Energy that is given by sun is called solar energy in simple words. Solar energy is a natural resource given by nature to human being. Sun is very important for us in many ways and it is a good source of energy. Solar energy is renewable energy which will never exhaust. We can use its energy in many ways. We all know that every thing has something good and bad also. Every coin has two phases. Just like that solar energy as well. So today we discuss about Solar Energy Advantages and Disadvantages.
Solar Energy Advantages and Disadvantages
Before going ahead to know the solar energy advantages and disadvantages, we firstly know the meaning and some uses of solar energy.
What is Solar Energy?
Solar energy is that produced by the Sun’s light – photovoltaic energy – and its warmth – solar thermal – for the generation of electricity or the production of heat. Inexhaustible and renewable, since it comes from the Sun, solar energy is harnessed using panels and mirrors.
Photovoltaic solar cells convert sunlight directly into electricity by the so-called photovoltaic effect, by which certain materials are able to absorb photons (light particles) and liberate electrons, generating an electric current. On the other hand, solar thermal collectors use panels or mirrors to absorb and concentrate the Sun’s heat, transferring it to a fluid and conducting it through pipes to use it in buildings and installations, and also for electricity production (solar thermoelectric).
Uses of Solar Energy
Solar energy is very usefull because present time is the time of technology and needs energy to run. So solar enery has a lot uses in our present time. Some of them are as fallow:
1. Solar energy is used for heating water, heating building, cooking etc.
2. The main use of solar energy is to generate electricity through solar panels and solar cells. And electricity is used every where.
3. Solar energy is used by the plants for making their food with the process of photosynthesis.
4. It is use for taking away salts from sea.
5. It is use for drying clothes and towels etc.
Benefits of Solar Energy
1. Solar energy is a source of energy which can be renew immediately.
2. Solar energy is non polluting source of energy.
3. Solar energy is inexhaustible.
4. By the use of solar energy we can reduce the global warming of the country.
5. By the use of it we can reduce the use of fossil fuel.
6. Solar energy contribute to the sustainable development.
7. It help in making electricity which is used every where.
Advantages of Solar Energy
Following are the advantages of Solar energy are as fallow:
1. Renewable Energy Source
Among all the benefits of solar panels, the most important thing is that solar energy is a truly renewable energy source. It can be harnessed in all areas of the world and is available every day. We cannot run out of solar energy, unlike some of the other sources of energy. Solar energy will be accessible as long as we have the sun, therefore sunlight will be available to us for at least 5 billion years when according to scientists the sun is going to die.
2. Reduces Electricity Bills
Since you will be meeting some of your energy needs with the electricity your solar system has generated, your energy bills will drop. How much you save on your bill will be dependent on the size of the solar system and your electricity or heat usage.
3. Divers Applications
Solar energy can be used for diverse purposes. You can generate electricity (photovoltaics) or heat (solar thermal). Solar energy can be used to produce electricity in areas without access to the energy grid, to distill water in regions with limited clean water supplies and to power satellites in space. Solar energy can also be integrated into the materials used for buildings. Not long ago Sharp introduced transparent solar energy windows.
4. Low Maintenance Costs
Solar energy systems generally don’t require a lot of maintenance. You only need to keep them relatively clean, so cleaning them a couple of times per year will do the job. Most reliable solar panel manufacturers give 20-25 years warranty. Also, as there are no moving parts, there is no wear and tear. The inverter is usually the only part that needs to changed after 5-10 years because it is continuously working to convert solar energy into electricity (solar PV) and heat (solar thermal). Apart from the inverter, the cables also need maintenance to ensure your solar power system runs at maximum efficiency. So, after covering the initial cost of the solar system, you can expect very little spending on maintenance and repair work.
5. Technology Development
Technology in the solar power industry is constantly advancing and improvements will intensify in the future. Innovations in quantum physics and nanotechnology can potentially increase the effectiveness of solar panels and double, or even triple, the electrical input of the solar power systems.
Disadvantages of Solar Energy
Following are the disadvantages of Solar Energy are as fallow:
The initial cost of purchasing a solar system is fairly high. Although the UK government has introduced some schemes for encouraging the adoption of renewable energy sources, for example, the Feed-in Tariff, you still have to cover the upfront costs. This includes paying for solar panels, inverter, batteries, wiring and for the installation. Nevertheless, solar technologies are constantly developing, so it is safe to assume that prices will go down in the future
2. Weather Dependent
Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops. Solar panels are dependent on sunlight to effectively gather solar energy. Therefore, a few cloudy, rainy days can have a noticeable effect on the energy system. You should also take into account that solar energy cannot be collected during the night. On the other hand, if you also require your water heating solution to work at night or during wintertime, thermodynamic panels are an alternative to consider.
3. Solar Energy Storage Is Expensive
Solar energy has to be used right away, or it can be stored in large batteries. These batteries, used in off-the-grid solar systems, can be charged during the day so that the energy is used at night. This is a good solution for using solar energy all day long but it is also quite expensive. In most cases, it is smarter to just use solar energy during the day and take energy from the grid during the night (you can only do this if your system is connected to the grid). Luckily our energy demand is usually higher during the day so we can meet most of it with solar energy.
4. Uses a Lot of Space
The more electricity you want to produce, the more solar panels you will need because you want to collect as much sunlight as possible. Solar panels require a lot of space and some roofs are not big enough to fit the number of solar panels that you would like to have. An alternative is to install some of the panels in your yard but they need to have access to sunlight. Anyways, if you don’t have the space for all the panels that you wanted, you can just get a fewer and they will still be satisfying some of your energy needs.
5. Associated with Pollution
Although pollution related to solar energy systems is far less compared to other sources of energy, solar energy can be associated with pollution. Transportation and installation of solar systems have been associated with the emission of greenhouse gases. There are also some toxic materials and hazardous products used during the manufacturing process of solar photovoltaics, which can indirectly affect the environment. Nevertheless, solar energy pollutes far less than the other alternative energy sources.
So these are the some Benefits, uses and Solar Energy Advantages and Disadvantages.