In short, with efficiency improvements, solar power generation technology could have significant potential as an energy resource. The article discusses the emerging technologies in solar energy sources that could increase the technical and economical effectiveness of this source, thus boosting its popularity.
Solar photovoltaics (PV), the conversion of light into electricity using semiconducting materials, were one of the most expensive electricity-generating technologies when first employed in astronautics in the late 1950s. By 2020, it has become an economically viable energy source for many applications.
Is solar energy a good energy source?
In short, with efficiency improvements, solar power generation technology could have significant potential as an energy resource. The article discusses the emerging technologies in solar energy sources that could increase the technical and economical effectiveness of this source, thus boosting its popularity.
Assuming forecasts are correct, solar photovoltaics will be among the cheapest sources of energy. With declining prices, the U.S. Department of Energy (DOE) projects solar power to account for 40% of U.S. electricity by 2035 and 45% by 2050. This would require producing 1600 gigawatts with solar technology.
In most countries, distributed residential systems already have generation costs below (the energy portion of) retail electricity prices, making the deployment of solar PV for self-consumption economically attractive (IEA 2020b ).
Is solar power a good investment?
The cost of solar power has dropped sharply, positioning the U.S. for an outburst of solar photovoltaic installations. Many governments provide subsidies or tax credits to incentivize solar installations. Corporations are also investing heavily in solar systems, contributing to the optimistic economics of solar power.
Fossil fuels still dominate U.S. electricity generation, with solar trailing at 3.9% of total power generation. There are two types of solar power: solar thermal and photovoltaic. The cost of solar power has dropped sharply, positioning the U.S. for an outburst of solar photovoltaic installations.