What is Solar Power?

Energy

How much of our energy is coming from the Sun?

In Direct sunlight, the sun is providing around 90 watts per square inch at the surface of the Earth, or 1000 watts per square meter. The intensity that this refers to is what energy scientists call 1 sun, and is sufficient to power ten 100-watt light bulbs, or fifty 20-watt fluorescent light bulbs. As opposed to what is sometimes claimed by solar energy opponents is solar power not at all weak or diffuse.

The amount of sunlight that falls on even a tiny portion of a home’s roof is in general actually already enough to take care of all the home’s energy needs. Or said in another way, if we would cover not even 1 percent of all U.S. land area with solar power panels, we could be providing all of our current energy needs.Continue reading

What is Energy and Forms of Energy

Energy

Energy, in all its forms, belongs to the most fundamental elements in our universe.

We are using energy to live or to do work, our cities are lighted by energy, our vehicles are powered by energy, as are trains, planes, boats, and rockets. We use energy to warm our homes, to cook our food, to play our music, or to watch television. Energy is needed to power a tractor on a farm or to allow machines in a factory run.Continue reading

Nonrenewable Sources of Energy – What are they?

Energy

Nonrenewable sources of energy are the ones that have a pre-existing finite amount of ‘fuel’, and by “fuel” is meant any kind of substance that is storing energy. Natural gas, gasoline, uranium, kerosene, and firewood, all these substances are ‘fuel’ examples. And of these ‘fuels’, firewood is the only renewable is this listing. Here are the most common nonrenewable fuels:

Fossil Fuels: Oil, Coal, and Natural Gas – These fossil are what is left over from animals and plants that were living several millions of years before us. This is why they are called ‘fossil’.  All these fuels are ‘carbon-based’ meaning they are consisting mainly of elements that contain carbon and hydrogen coming from these ancient animals and plants’ bodies. Oil is a fossil fuel in liquid form (where each molecule contains several carbon atoms), natural gas is fossil fuel in gaseous form (where each small molecule contains just 1 or 2 carbon atoms), and coal is fossil fuel in solid form (each molecule contains many carbon atoms).Continue reading