Since the time when solar energy was beginning to be generally known, there have appeared a good deal of other alternative energy systems that many people have tried and implemented in order to power their homes.
Wind energy, geothermal energy and wave power are some examples of providing your home with free electricity.
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1. Solar energy is renewable. We never have to worry about running out of sunlight or using it all up. The sun is a consistent power source meaning it's always going to be there every day.
2. Solar energy is environmentally friendly. Compared to fossil fuels which release greenhouses gases, carcinogens and carbon dioxide, solar cells don't release anything into the air.
3. Solar panels are extremely reliable. There are no moving parts so you don't have to worry about replacing anything. In fact, most people generate electricity for 1000s of hours with little or no maintenance.
4. Solar cells make no noise while collecting energy. There are no other renewable energy sources that are completely silent.
5. In the long run, solar electricity is cheaper than buying it from the power company. There is a start up cost, but then it starts paying for itself. Once you break even, everything after that is profit. Compare this to paying a monthly bill and getting no return on investment.
* After the initial investment has been recovered, the energy from the sun is practically FREE.
* The recovery/ payback period for this investment can be very short depending on how much electricity your household uses.
* Financial incentives are available form the government that will reduce your cost.
* If your system produce more energy than you use, your utility company can buy it from you, building up a credit on your account! This is called net metering.
* It will save you money on your electricity bill if you have one at all.
* Solar energy does not require any fuel.
* It's not affected by the supply and demand of fuel and is therefore not subjected to the ever-increasing price of gasoline.
* The savings are immediate and for many years to come.
* The use of solar energy indirectly reduces health costs.
* Solar Energy is clean, renewable (unlike gas, oil and coal) and sustainable, helping to protect our environment.
* It does not pollute our air by releasing carbon dioxide, nitrogen oxide, sulphur dioxide or mercury into the atmosphere like many traditional forms of electrical generations does.
* Therefore Solar Energy does not contribute to global warming, acid rain or smog.
* It actively contributes to the decrease of harmful green house gas emissions.
* It's generated where it is needed.
* By not using any fuel, Solar Energy does not contribute to the cost and problems of the recovery and transportation of fuel or the storage of radioactive waste.
* Solar energy is free. It needs no fuel and produces no waste or pollution.
* In sunny areas, solar power can be used extensively.
* Generating electricity from solar energy is actually free. One need to install solar panels only once and utilise the electricity generated for years.
* The maintenance costs of solar panels are negligible. One need to set up the system only once and it runs for years. The function of solar panels is to absorb energy from the sunlight and convert it into direct current like in batteries. This stored power can be utilised for any purpose.
* If electricity is generated by fuels, it produces carbon dioxide as a byproduct. Electricity generated by solar energy does not cause pollution. Solar energy panels are eco-friendly.
* Solar energy is renewable as sun is available daily.
* Solar energy panels do not occupy much space for installation.
* Solar energy panels are noiseless.
Disadvantages:
* It doesn't work at night.
* Very expensive to build solar power stations or buy equipment like solar power fencing and solar power generators, although the cost is coming down as technology is improving.
* It can be unreliable unless one is living in a sunny climate.