Renewable source of energy is said to be an environmental friendly alternative source of energy specifically in addressing the emission of Green House Gases
Alternative sources of energy can be classified based on different criteria, such as the availability, the impact on the environment, the technology required to harness them, and the potential to replace fossil fuels. Here are some common criteria used to classify alternative sources of energy:
Renewable or non-renewable: Renewable sources of energy are those that are replenished naturally over time and are therefore considered sustainable, such as solar, wind, hydro, geothermal, and biomass energy. Non-renewable sources of energy, on the other hand, are finite and will eventually run out, such as fossil fuels like coal, oil, and natural gas.
Clean or dirty: Clean sources of energy are those that have minimal impact on the environment and do not produce greenhouse gas emissions or other pollutants, such as solar, wind, and hydro energy. Dirty sources of energy, on the other hand, are those that produce harmful emissions and contribute to climate change, such as coal and oil.
Energy density: Energy density refers to the amount of energy that can be produced per unit of space or weight. Some sources of energy, such as fossil fuels, have high energy density, while others, such as wind and solar, have lower energy density.
Cost: The cost of producing energy from alternative sources can vary widely depending on the technology required, the location, and other factors. Some sources of energy, such as solar and wind, have become increasingly cost-competitive with fossil fuels in recent years, while others, such as biomass energy, can be more expensive.
Infrastructure requirements: Some sources of energy, such as hydroelectric and geothermal energy, require significant infrastructure to harness, while others, such as solar and wind, can be more easily implemented on a smaller scale.
Ultimately, the choice of which alternative energy source to pursue will depend on a variety of factors, including the availability of resources, the level of investment required, and the potential impact on the environment and economy.
Alternative energy is energy that does not come from fossil fuels and thus produces little to no greenhouse gases like carbon dioxide (CO2). This means that energy produced from alternative sources does not contribute to the greenhouse effect that causes climate change. These energy sources represent the alternative to coal, oil, and natural gas, the most common energy sources since the Industrial Revolution. These energy sources, known as fossil fuels, emit high levels of CO2 when burned to produce energy and electricity. It is important to know that alternative and renewables are two different concepts. Alternative energy should not be confused with renewable energy, although many renewable energy sources can also be considered alternatives. Solar power, for example, is both renewable and alternative because it will always be abundant and emits no greenhouse gases. Nuclear power is an alternative energy source but is not renewable since it uses uranium, a finite resource, to produce electricity.