What is solar energy?

solar energy, radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity. The total amount of solar energy incident on Earth is vastly in excess of the world’s current and anticipated energy requirements.

What is the potential of solar energy?

Solar energy potential Earth's photovoltaic power potential. The potential for solar energy to be harnessed as solar power is enormous, since about 200,000 times the world’s total daily electric-generating capacity is received by Earth every day in the form of solar energy.

What are the different types of solar energy technologies?

There are two main types of solar energy technologies—photovoltaics (PV) and concentrating solar-thermal power (CSP). You're likely most familiar with PV, which is utilized in solar panels. When the sun shines onto a solar panel, energy from the sunlight is absorbed by the PV cells in the panel.

How do solar panels generate electricity?

This process is constant: Over 500 million tons of hydrogen atoms are converted into helium every second, resulting in photons that generate solar energy here on Earth. In a nutshell, solar panels generate electricity when photons (those particles of sunlight we discussed before) strike solar cells. The process is called the photovolatic effect.

What are solar energy systems & how do they work?

Solar energy systems come in all shapes and sizes. Residential systems are found on rooftops across the United States, and businesses are also opting to install solar panels. Utilities, too, are building large solar power plants to provide energy to all customers connected to the grid.

Where is solar energy used?

It is used primarily in very large power plants. Solar energy technology doesn’t end with electricity generation by PV or CSP systems. These solar energy systems must be integrated into homes, businesses, and existing electrical grids with varying mixtures of traditional and other renewable energy sources.