Natural resources that are regenerated at a faster pace than they are used are considered renewable energy sources. Such sources are ever-renewing, like the sun and the wind. Renewable energy sources abound and are easily accessible.
However, fossil fuels such as coal, oil, and gas are not replenishable and take hundreds of millions of years to create. When burned for power, fossil fuels release dangerous greenhouse gases like carbon dioxide into the atmosphere.
Low-emission renewable energy generation is a viable alternative to fossil fuel generation. To combat climate change, we must shift away from fossil fuels, which are responsible for the vast majority of emissions, and toward renewable energy sources.
In most regions, renewable energy sources have dropped in price and currently create three times as many jobs as traditional energy sources.
Some typical examples of renewable energy sources are as follows:
Power from the Sun
Even in overcast conditions, solar energy has the highest availability of any energy source. The Earth’s rate at which solar energy absorbs is roughly 10,000 times higher than the rate at which humanity consumes power.
With today’s technology, the sun may provide heat, cold, light, power, and fuel. Both photovoltaic panels and mirrors that focus solar radiation can be used in solar technology to turn sunlight into electricity.
Although not every country has the same access to solar energy, every country can benefit from incorporating direct solar power into its energy mix.
Solar panels have become widely accessible and, in many cases, the cheapest form of electricity due to the substantial decrease in the cost of manufacture over the past decade. Solar panels have a 30-year average lifespan and a wide range of colors because of the various materials used in their production.
FORCE OF THE WIND
Wind energy is generated by installing enormous wind turbines on land (onshore) or saltwater (offshore), or freshwater (onshore) (offshore). Even though people have been harnessing the power of the wind for centuries, it is only in the last few years that technologies have advanced to the point where the electricity generated from onshore and offshore wind farms can be maximized with turbines that are both taller and have larger rotor diameters.
Despite wide variations in average wind speeds, the world’s technical potential for wind energy far surpasses worldwide power output, and most places have the potential to permit multiple wind energy deployments.
While high wind speeds can be found in many regions, the ideal sites for harnessing this resource are often in less-accessible places. The potential for offshore wind generation is enormous.
THERMAL ENERGY FROM THE EARTH’S CORE
Energy derived from geothermal sources is derived from the readily available heat of the Earth’s interior. Wells and other methods are used to draw heat from geothermal reserves.
Hydrothermal reservoirs are naturally sufficiently hot and permeable, while enhanced geothermal systems start with pools that are naturally sufficient in the heat but are then increased through hydraulic stimulation.
Fluids of varying temperatures can be used to create power once they reach the surface. Scientists and engineers have perfected generating power from hydrothermal pools for more than a century.