It was Svante Arrhenius who showed us the problem of global warming caused by the excess use of fossil fuels 1896. Imagine how much the problem has multiplied and escalated causing immense damage to the environment. This is why almost all the countries are looking for alternative fuel sources that will not cause any further harm to the environment via emission. The alternative sources offer renewable energy and will also reduce the unit price.
Top 5 best renewable technologies
The advent of solar panels has literally changed the world of alternative energy sources. Almost any unused surface can be changed into a solar energy harnessing unit. The solar panels are made of photovoltaic cells. When sunlight is incident on it, electricity is generated and stored. The Solar Panels can be installed on the roofs, sunshades, car tops, window panels, water bodies, deserts and any unused surface you can possibly imagine.
Solar Hot Water Systems
This is another technology used to harness or trap solar energy and heat a water system. The domestic water used for various purposes can be heated using this device. A conventional solar hot water system comprises a flat plate collector, a set of evacuated tubes, water tank, and a heat exchanger. The greenhouse effect is used to trap heat in the water flowing in the pipes. This process saves a lot of energy. Solar Hot Water Systems are used in industrial premises also.
The name ‘Wind Turbines’ clearly suggests that a turbine is rotated by the powerful winds hitting the blades. These turbines are installed in open areas. The renewable energy is generated by the rotation of the turbines due to the flow of strong winds. One of the biggest advantages of wind energy harnessing is that it does not produce greenhouse gases. The installation and operation of the turbines leave a minimum carbon footprint. In fact, it does not use too much surface. Agriculture and animal farming can be done without any hassle. The only threat is to the avian species. The turbines cause noise pollution. The installation cost is also higher in comparison to other renewable energy technologies.
Ground Source Heat Pumps
This is a unique technology where geothermal heat is trapped and used by ground water pumps. In the winter season, geothermal energy can be used to heat up water. On the other hand, transferring heat during the summer season also makes the water cool. The system is installed at a depth of 20 feet to avail the heat exchange process with the earth as its temperature remains constant between 16°C and 24°C.
Water, stored in huge reservoirs, when released from a height produces a huge amount of kinetic energy, enough to turn a turbine at a high speed. The turbine generated enough electricity to run a city or an industrial belt. Hydroelectric Power also has a minimum carbon footprint. It can be established in a small form for a ranch, home or a farm.
These are the best 5 technologies that have the potential to replace fossil fuels and save our world from global warming.