A Passive solar system collects heat as the sun shines through the windows and is stored on thermal mass. It uses the sun’s energy for heating or cooling buildings. Future homes should be constructed with this system because its advantages outweigh its drawbacks with low emissions of CO2 or other pollutant, consists of little maintenance, and has positive long term effects such as low electric bills. This system releases low emissions of CO2 or any other pollutant because it takes advantage of a structure’s climate, site, and materials to minimize energy use. Solar passive design integrate a combination of building features to reduce or even eliminate the need for mechanical cooling, heating or daytime artificial lighting.
On the other hand, hydroelectric plants do not release any emissions such as carbon dioxide or sulfur dioxide, both of which increase to global warming and climate change. This is a tremendous advantage over fossil fuel use. Also, there isn't any need to worry about nuclear disasters like there is with the use of nuclear energy. Another renewable energy resource that has a lower amount of environmental impact is solar energy. Solar energy is created and used through the use of photovoltaic cells that collect the suns energy and then convert that energy into a useful form like electricity.
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Here are some advantages that solar energy provides to us. First of all, it is better for our environment because utilizing solar energy doesn’t cause pollution. Solar energy is so clean; leaving no carbon dioxide in the air or harmful emissions. It is clear that solar energy reduces our dependence on the non-renewable energy sources. This is one of the most important steps to overcome the global warming crisis.
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Regarding to solar power, Mistry claims that although the solar power does not generate pollution, it has a lot of costs. To built solar panels with a photovoltaic equipment has high costs. For instance, a photovoltaic system just for a home can cost around $35,000 (Kumar, 2012). However, if our goal for the future is to get a healthy environment, switch fossil fuels for solar power might be the best choice to achieve that goal. According to Kumar (2012), Solar power is a clean and renewable energy so, it decreases the dependency on fossil fuel and also reduces the air pollution.
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