Solar energy solar is the first energy source in the world it was in use much earlier before humans even learn how to light a fire many living things are dependent on solar energy from plants, aquatic life wind power is renewable source of energy and reduces our alliance on foreign countries for supply of oil and gas. Mimic the dance between carbon, hydrogen and oxygen, and you can tap into clean solar energy and ease climate change. Renewable energy is a supply of energy that can be used as many times necessary and does not use any compound made from the earth there are many different types essay on alternative sources of energy the law of conservation says that energy is neither created nor destroyed when we use energy,. Photosynthesis almost all life on earth relies on solar energy for food, either directly or indirectly producers rely directly on solar energy they absorb sunlight and solar energy is a renewable resource, and many technologies can harvest it directly for use in homes, businesses, schools, and hospitals. There's a surprisingly low limit to the energy we can get from wind and waves – direct use of sunlight is our most promising alternative to fossil fuels.
This was compounded by the increasing use of reticulated electricity based on fossil fuels and the importance of portable high-density energy sources for transport – the era of oil as electricity demand escalated, with supply depending largely on fossil fuels plus some hydro power and then nuclear energy, concerns arose. Solar energy is radiant light and heat from the sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis it is an important source of renewable energy and its technologies are broadly. A related term is sustainable energy: this concept refers to generating energy with an awareness of the future, ie in a way that would enable future generations to meet their energy needs too the concept is related not only to renewables, but also to energy efficiency waves. The criteria for any acceptable energy supply will continue to be cost and safety, as well as environmental considerations energy resources there is abundant coal in many parts of the world, but with the constraints imposed by concern about global warming, it is likely that these will increasingly their.
Officialdom's constant use of the word “clean” masks the many details about energy that keep the lights on in most cases, “clean energy” is a general designation for low-to-zero carbon-energy resources, the most prevalent forms being wind and solar power the public has been led to believe that coal and. Plants, algae and bacteria are the only organisms that can harvest sunlight and use the energy to convert co2 (carbon dioxide) to organic material carbon dioxide is one of the major air pollutants, so photosynthetic organisms are actually keeping the air clean in the process, they produce oxygen, which.
Photosynthesis is an example of solar radiant energy transformed into stores of chemical energy that plants and animals (including humans) use to maintain however, when we use them so that the rate of use far exceeds the rate of replenishment (trees take time to grow), referring to these sources as renewable can be. There are plenty of other things we need energy but most wasn't able without someone designing it or creating it which is why we have energy workers, these people day by day find source full ways to supply us with energy they every year come up with ways to help save energy but still be the same amount you did the. A renewable energy source such as biomass is sometimes regarded as a good alternative to providing heat and electricity with fossil fuels biofuels are not inherently ecologically friendly for this purpose, while burning biomass is carbon- neutral, air pollution is still produced for example, the netherlands, once leader in use.