Activity 3.2.3 – Alternative Energy – Solar Energy

 

Alternative energy refers to energy sources that can be renewed or replenished in a human time frame, such as sunlight, wind, water, geothermal heat, or biomass. These energy sources differ from fossil fuels because they are not limited and produce far fewer pollutants. As explained in the chapter reading, renewable energy comes from the sun or processes powered from it, like wind and hydro power, and if used sustainably, these resources can last for thousands of years. The concept behind alternative energy is to find ways to meet modern energy demands without running out of resources or impairing the environment.

There are many arguments for using alternative energy. The most convincing reason is that it helps reduce greenhouse gas emissions that also contribute to global climate change. A majority of renewable sources like solar, wind, and hydroelectricity produce little to no air pollution when generating electricity (Mutiti et al., 2018). For example, solar panels and small wind turbines can provide power in remote areas that are not connected to an electrical grid. Using alternative energy also lovers the risk of oil spills or coal mining accidents that can occur when forging for fossil fuels. In addition, renewable resources create new economic job opportunities through jobs in manufacturing, installation, and maintenance showing that taking care of the environment also has a plus in economic growth.

Solar energy is one of the most favorable alternatives because it can be used almost anywhere sunlight is available. It converts sunlight into electricity using photovoltaic (PV) cells or also can use solar thermal systems to heat water and air (Mutiti et al., 2018). Solar power is clean, renewable, and easy to scale from rooftops to large solar farms. However, solar energy also has its limitations. Solar energy only works when the sun is shining, so cloudy days and nights completely reduce output. The storage systems like batteries are needed to keep power available at all times or it would not be able to be stored. The manufacturing of solar panels also requires energy and chemicals, which can create environmental waste if not handled properly (Mutiti et al., 2018). Despite these challenges, the advantages of clean energy, reduced greenhouse gas emissions, and long-term sustainability are what make solar one of the best options for a greener future.

 References

Mutiti, S., Mutiti, C., Manoylov, K., VandeVoort, A., & Bennett, D. (2018). Introduction to environmental science (3rd ed.). Biological Science Open Textbooks. University System of Georgia.