As the demand for energy ramps up globally, the fact that fossil fuels are a finite resource is becoming more and more evident. The importance of renewable energy solutions, such as solar and wind power, as potentially infinite energy sources cannot be ignored.
Renewable energy solutions play a crucial role in creating a sustainable future by helping to reduce greenhouse gas emissions and mitigate climate change. Renewable energy solutions also decrease our reliance on finite fossil fuel sources.
One of the first renewable energy solutions exploited to produce electrical power was hydropower. In 1878, the world’s first hydroelectric project powered a single lamp in the Cragside country house in Northumberland, England. The first plant to serve a network of private and commercial customers opened in Wisconsin, USA four years later. Within a decade after this, hundreds of hydropower plants were in operation globally.
Dams and reservoirs are used to store water and release it through turbines to generate electricity. The gravitational kinetic energy stored in the water is converted into electricity. An alternative form of hydropower is a run-of-river system. These systems harness the kinetic energy of flowing water without the need for large dams. Hydro-based solutions provide low-carbon, constant power generation, with low greenhouse gas emissions. Unlike wind and solar, hydropower systems can produce power consistently, night and day, in any weather.
Geothermal power was another one of the renewable energy solutions discovered and used early on. Heat from the earth’s core is harnessed to produce steam to drive steam turbines to make electricity. Geothermal power can also provide direct heating and cooling. In 1904, Prince Piero Ginori Conti invented the first geothermal power plant in Tuscany, Italy. As is the case with hydro, geothermal power-provision systems supply low carbon, constant power generation and are not subject to intermittency.
Iceland is a shining example of the use of renewable energy solutions. Over 85% of all houses in Iceland are heated with renewable energy sources, 66% of which comes from geothermal power. Iceland has five major geothermal power plants which produce a little over 26% of the total amount of electricity used. Most of the balance of the nation’s electricity is generated by hydropower (73,8%). Only 0,1% is produced with fossil fuel.
Solar photovoltaic panels are a relatively recent addition to the ranks of renewable energy systems. Modern photovoltaic electricity generation from silicon panels is credited to Daryl Chapin, Calvin Fuller, and Gerald Pearson’s creation of the silicon photovoltaic cell at Bell Labs in 1954. France inaugurated the first operational solar generating plant at Odeillo on 25 January 1977.
Solar photovoltaic panels convert sunlight into electricity. They can be installed on rooftops or at solar farms, or integrated into building designs. These systems use the energy contained in sunlight for electricity generation.
Photovoltaic panels produce abundant, clean energy, reduce electricity bills, and decrease the carbon footprint of power generation. Solar photovoltaic power is predicted to be the world’s largest single source of electricity by 2050 and will consequently be the most important of the current renewable energy solutions. The biggest drawback of solar renewable energy systems is intermittency. The sun goes down every evening and the weather is not always sunny.
The use of wind-powered devices as an energy source is centuries old. People used wind energy to move boats along the Nile River as early as 5,000 BC. Simple wind-powered water pumps were used in China from around 200 BC onwards. Windmills with woven-reed blades were grinding grain in Persia and the Middle East at about the same time and the Dutch are famous for their windmills for grinding grains and pumping water.
Modern wind turbines capture kinetic energy from the wind and convert it into electricity. While wind turbines can be located virtually anywhere, placing wind turbines offshore takes advantage of stronger and more consistent winds. Wind turbines provide energy-dense, low-carbon power while using relatively minimal amounts of land. They are also easily scalable.
There are several other sources of renewable energy that contribute to the renewable energy mix to a lesser degree than hydro, solar, and wind power do. These include:
To achieve a sustainable future with renewable energy as opposed to fossil fuels, governments, industries, and individuals should employ all the available renewable energy solutions. They should collaborate to invest in research and development to improve efficiency and reduce the costs of existing renewable energy solutions.
Fossil-fuel-based power generation should be transitioned to renewable energy sources where possible, and a more decentralised and resilient energy grid should be created. Policies and incentives to promote renewable energy adoption should be implemented and the public should be educated regarding the benefits of renewable energy and energy conservation.
Factors such as natural resource availability and government policies will determine the mix of renewable energy solutions adopted and bias the choice of energy source, whether hydroelectric power, geothermal energy, wind power, or solar modules. By embracing renewable energy and reducing our reliance on fossil fuels, we can reduce our environmental impact on the planet and work towards a more sustainable and greener future.
At PacB, we have a long history of providing excellent service and superior technical expertise in the power-generation industry. Initially specialising in the provision of premium-quality, industrial-size diesel generators, we have moved into the provision of renewable energy solutions and generator/renewable energy hybrid systems. Renewable energy solutions, despite their straightforward conceptual foundation, become progressively intricate as they grow in capacity. Large, utility-scale installations may require integration of large-capacity diesel generators, solar plants, and wind turbines, and may even include hydroelectric or pumped storage systems.
As leaders in the power-generation industry in Southern Africa, we can provide power generation consisting of solar solutions and non-renewable energy generation. Our experienced engineers and technicians will design and implement a class-leading power solution for your specific site whether for a residence or commercial concern. We have a large portfolio of successful projects from the largest diesel generators to solar and UPS solutions.
We are experts in creating integrated hybrid solutions using both diesel generators and renewable energy solutions. Explore our website today and have the peace of mind of working with leaders in the provision of power.
Our qualified technicians offer support and advice in the selection of the right power solution for your needs by calculating your power requirements.