# How powerful is the Sun energy?

## How powerful is the Sun energy?

The amount of sunlight that hits the Earth in one hour provides more power than the entire world consumes in one year [1]. Each hour 430 quintillion Joules of energy from the sun hits the earth. 430 quintillion is the number 430 with 18 zeroes! In contrast, all humans combined use 410 quintillion Joules in a year.

Why is sun so powerful?

The sun is the closest star to Earth. Even at a distance of 150 million kilometers (93 million miles), its gravitational pull holds the planet in orbit. It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Solar energy has existed as long as the sun—about 5 billion years.

What country has the cleanest energy?

Iceland generates the most clean electricity per person in the world. Nearly 100% of Iceland’s energy comes from renewable sources, mainly from hydropower (72%) and geothermal (28%) energy. Nicaragua has pledged to generate at least 90% of its electricity from renewable sources by 2020.

### What energy is produced by the Sun?

The sun provides us heat and light energy free of cost. The energy obtained from the sun is called solar energy. The nuclear fusion reactions taking place inside the sun keep on liberating enormous amounts of heat and light energy.

What does the Sun produce energy through?

Sun energy is generated in its nucleus mainly through the thermonuclear reaction of hydrogen fusion into helium. In the form of electromagnetic waves this energy is then transmitted from the nucleus towards the surface of the Sun and further on in the surrounding space. The Sun’s energy is generated in its core.

What is the power output of the Sun?

The power output in the sun is about 4.00 x 10^26W. (a). Calculate the power per unit area (intensity), in kilowatts per square meter, reaching Earth’s upper atmosphere from the sun. The radius of the Earth’s orbit is 1.5 x 10^11m.

## How much energy does the Sun generate?

The sun’s surface emits about 63 million watts of energy per square meter. By the time the energy reaches the Earth, after traveling 150 million kilometers, or 93 million miles, it has diminished to 1,370 watts per square meter at the top of the atmosphere directly facing the sun.