Many people have heard about the financial and practical benefits of installing a solar energy panel — with a one-time purchase, solar panels can cover as much as 100% of your electric usage depending on the amount of roof space available, solar access and other factors. For many businesses and homeowners, this is a no-brainer. However, if you’re on the fence about whether to get a solar panel or wondering if it’s really worth the time, effort and investment, you may want to consider the other benefits of solar energy, as well. Not only is solar energy an
incredibly beneficial financial decision for your home or business, but it can also contribute substantially to the wellness of the environment and even to public health as a whole! To help you better understand why solar energy is good for the environment, we’ve detailed the differences between solar and traditional energy, the drawbacks of traditional fossil fuels and why solar panels are better for the environment.
Between manufacturing, installation, operation, maintenance and dismantling,
natural gas emits between 0.6 and two pounds of carbon dioxide equivalent per kilowatt-hour, and coal emits between 1.4 and 3.6 pounds per kilowatt-hour. Though it may just seem like harmless smoke, these gasses can build up in the atmosphere, causing serious harm to the environment and public health. Solar energy, on the other hand, uses light collected from the sun to produce electricity. The process typically involves sunlight hitting a solar panel, where the photons of light are converted into electrons, creating electricity. This electricity can then be converted into a form useable within the building, at which point it can be immediately used. This process is quick, direct and produces little to no carbon emissions. Between manufacturing, installation, operation, maintenance and dismantling,
solar energy produces a total of 0.07 to 0.2 pounds of carbon dioxide equivalent per kilowatt-hour, a fraction of the amount produced by fossil fuels.
In light of these dismal effects of fossil fuels on the environment, many have turned to renewable, cleaner energy production processes such as solar. The environmental impact of solar panels is impressive — a single, 4-kilowatt residential solar power system can be expected to offset nearly 200,000 pounds of carbon dioxide over 25 years. This huge offset is equivalent to planting around 2,316 trees, or avoiding driving 208,166 miles. Larger systems, like those for apartment complexes or business suites, can expect to offset 178 tons of carbon dioxide over 30 years, or the equivalent of planting 10 football fields full of trees. Some of the benefits of solar power for the environment include the following:
Solar Energy vs. Traditional Energy
Approximately 67 percent of the electricity generated in the United States comes from fossil fuels — 33 percent from coal, 33 percent from natural gas and another one percent from petroleum oil. When burned, these traditional energy sources can be used to produce electricity. However, they simultaneously produce a substantial amount of greenhouse gasses. These gasses get released into the atmosphere, polluting the air and trapping heat within the earth’s atmosphere. The most prominent of these gasses is carbon dioxide.The Drawbacks of Traditional Energy Sources
While traditional energy sources have served the United States well for decades, the environmental and public health problems associated with this energy source have become more prominent in the public eye. Many of these issues are a result of the byproducts of the fossil fuel burning process, known more generally as “greenhouse gasses.” These issues have arisen across the globe, causing several countries to pursue alternative energy production methods in an effort to reduce their greenhouse gas production. Some of the negative aspects of fossil fuel-based energy include the following:- Harmful extraction process: The extraction of fossil fuels from the earth can be devastating for the local environment. Strip mining, drilling and fracking can all have negative impacts on the surrounding environment. Strip mining leaves ecosystems more vulnerable to catastrophic flooding, while drilling can unearth toxic minerals, contaminating groundwater.
- Dangerous transportation methods: Transporting oil across long distances usually involves ocean tankers or land pipelines, which are both prone to accidents. Errors during travel or failures in maintenance can result in spills or leaks. These can result in catastrophic effects on local environments. These effects are amplified in coastal regions and freshwater environments, where the organisms are more sensitive to changes in the surrounding ecosystem.
- Water usage and pollution: Water is a resource negatively affected by nearly every stage of the traditional energy production process. This vital resource is used in numerous ways through the traditional electrical production process and is an important part of coal and petroleum processing.
- Greenhouse gas emissions: Electricity generation is by far the largest source of greenhouse gas emissions, accounting for 37 percent of United States carbon dioxide emissions. This is closely followed by transportation and industry, which account for 37 and 15 percent of emissions, respectively. 25 percent of all electricity is produced by coal-fired power plants, which produce the most carbon per kilowatt-hour.
- Public health issues: The burning of fossil fuels releases numerous toxic chemicals and molecules into the air, including nitrous oxides, sulfur dioxide and particulate matters, all of which can cause respiratory health problems. Chronic bronchitis, respiratory dysfunctions like asthma, cardiovascular problems and cancers are all serious public health issues, which can result from air pollution. Any of these can negatively affect public health, contributing to lost workdays, reduced life expectancies and increased mortality rates, especially in highly polluted areas.
The Benefits of Solar Power
- Renewable energy: Solar power is most remarkable as a source of unlimited, abundant energy. If it were possible to capture all of the sunlight shining on the Earth for a single hour, there would be enough energy produced to power the entire world for a year! This resource removes nothing from the environment, and requires no complex mining or drilling processes to obtain — all it takes is a few pieces of equipment and an installation team before your building is equipped with its own power source.
- Cut carbon emissions: Buildings, both commercial and residential, produce about 39 percent of all carbon emissions in the United States, with the average household emitting about 20 metric tons of carbon pollution each year. However, solar electricity contributes 96 to 98 percent less greenhouse gasses than coal generated electricity. By installing a solar power system, a typical two-person household can reduce their carbon emissions by three to four tons annually. As more people install solar panels on their homes, demand for fossil fuels across the country will decrease, cutting carbon emissions substantially.
- Improve public health: By helping cut carbon emissions and fossil fuel burning, solar energy helps contribute to the improvement of public health. In areas using significant amounts of solar power and other renewable energy sources, cases of chronic bronchitis, respiratory and cardiovascular problems were significantly reduced, resulting in fewer lost workdays, improved life expectancy and reduced mortality rates.
- Reduced water usage: Unlike coal or nuclear plants, which may draw 20 to 60 gallons of water for every kilowatt-hour of electricity produced, solar energy requires little to no water to operate. Between manufacturing, installation, implementation and removal, solar energy uses 86 to 89 percent less water than coal-produced electricity. This reduced usage minimizes the amount of water potentially polluted by manufacturing processes.
- Reduced land usage: Coal power plants, natural gas plants and petroleum refineries require huge plots of land to handle their massive production lines. Though these large plots may be necessary to maintain their traditional systems, processing sufficient quantities of fossil fuels to power the local population, these plots still take up a large amount of space.
- Long-lasting materials: Solar panels have an exceptionally long lifespan compared to other energy-producing mechanisms, with a warrantied lifespan of around 25 years. Some of the first solar panels from the 1950s are still functioning and producing today! This means a single purchase will last for decades to come.