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Frequently Ask Questions

What Is Solar Energy?

Solar power is generated when energy from the sun (sunlight) is converted into electricity or used to heat air, water, or other fluids. There are two main types of solar energy technologies:

Solar thermal is the conversion of solar radiation into thermal energy (heat). Thermal energy carried by air, water, or other fluid is commonly used directly, for space heating, or to generate electricity using steam and turbines. Solar thermal is commonly used for hot water systems. Solar thermal electricity, also known as concentrating solar power, is typically designed for large scale power generation.

Solar photovoltaic (PV) converts sunlight directly into electricity using photovoltaic cells. PV systems can be installed on rooftops, integrated into building designs and vehicles, or scaled up to megawatt scale power plants. PV systems can also be used in conjunction with concentrating mirrors or lenses for large scale centralised power.

Solar thermal and PV technology can also be combined into a single system that generates both heat and electricity.

Sun is the major energy resource for earth.At any moment, the sun emits about 3.86 x 1026 watts of energy. So add 24 zeros to the end of that number, and you'll get an idea of how unimaginably large an amount of energy that is! Most of that energy goes off into space, but about 1.74 x 1017 watts strikes the earth. Therefore, it is almost a unlimit energy source for human life. Solar energy has a lot of advantages

It is a renewable energy source

Typical electricity is generated from fossil fuel that will run out one day. Solar energy is a good alternative to replace fossil fuel as the major energy source because solar power is renewable at absolutely no cost to supply energy infinitely.

Environment friendly

The world pollution is getting worse. Any effort that can reduce the pollution to the environment helps to save the earth. Solar panels are able to harness the energy from the sun and convert it to electricity. Therefore, the use of solar panels is environment friendly. Therefore, solar energy that is harmless to the environment will be the major energy source for future - starting today.

Low / no maintenance needed

Once you have installed the solar power system, it can last twenty to thirty years without major maintenance needed. You may need to do system check once a year, just to make sure everything is performing as it should. Since it requires very minimum maintenance cost, your cost should be minimal.

The amount of money your household will save on power bills really depends on a few factors:

  • The Feed-in-Tariff you receive from your electricity retailer. You may want to shop around to get the biggest Feed in Tariff from another Electricity retailer
  • The energy consumption of your household. Solar panels can only generate electricity while the sun is shining so the households that use a lot of power during the day may attract greater savings than those households that consume most of their power at night. However, you will still receive a feed-in tariff for any excess electricity you generate during the day and export back to the electricity grid.
  • The size of your proposed Solar system. The bigger the system the more likely you are to save more money depending on your daily usage.

Nowadays you don't make much money from feeding electricity back into the grid. So you need to maximise your own use of your solar PV and minimise your export into the grid.

The panel capacity depends on your roof space and your current electricity usage.

At Say Yes Solar, we will design a system that will suit your needs.

1300 588 580