how much energy is anually spent world wide?

Answer 1

In 2003, the world energy consuption was 421 quadrillion BTU's.

Answer 2

This web site gives it for some major countries. Maybe you could add it up.

OK, if you look at the U.S. page it says the U.S. consumes 23% of the world's energy and it also says the U.S. consumes 98.84 quadrillion BTU. Doing the math says world energy consumption is about 430 quadrillion Btu. A BTU is about 1,060 Joules.

Since power is energy used per unit time, let us ask how much power does the world use. A Joule per second is a watt. If we assume that energy is used at a constant rate all year, that works out to 14,440,000,000,000 watts, or 14,440 gigawatts. So the world is presently using an average of 14,440 gigawatts of power all the time. Since there are 8,677 hours in a year, the world uses 14,440 * 8,677 = 125,295,880 gigawatt hours per year. Not all of it is electric energy, as some people may think since I used watt hours as the measure. It is all kinds of energy, including just the burning natural gas or oil to heat houses.

Answer 3

Your real question is how long will we have energy to spend????
Think how much CO2 that produces where is it go measure it,it is not there. The earth plants are recycling already. Just as CO2 gets recycled and converted to oxygen what happens to the plant side. It is a continuously recycling just like the air.

Answer 4

if you are talking about a specific type of energy i'm sure it could be figured out, but all you have there is 'energy' energy comes in tons of forms, coal, oil, electric, batteries, you expend energy with your body, heat energy, water energy. your question is impossible to answer.

Answer 5

too much, its not sustainable