If we wanted to convert the entire world electricity system to wind turbines, it would take 333 gazillion TONNES of steel to make all those wind turbines. That’s FIVE TONNES of steel every SECOND, for the next 30 years. Therefore, it just can’t be done.
If we wanted to convert the entire world electricity system to nuclear reactors, we would need to build a nuclear reactor EVERY SINGLE MONTH for the next 40 years. Therefore, it just can’t be done.
The diesel trucks which are used to carry wind turbines, burn a gallon of gasoline every HOUR. Therefore, we can’t install very many wind turbines.
[Some people] proposed that starting in 2012, 50% of the worlds needs could be supplied by 3,800,000 five megawatt wind capturing devices to be installed by 2030. Here are the numbers:
3,800,000 5 megawatts each supply
211,111.11 Machines a year
578.39 Machines a day for 18 years
24.10 Machines each hour each day for 18 years
[To build each wind turbine would require:]
For the Concrete
478.8 Barrels of oil in 630 yards of concrete.
409.5 Tons of CO2 released for 630 yards of concrete.
For the Rebar
Taking a conservative 3 barrels of oil per ton the rebar would require 135 barrels of oil for the base of the 2.5 MW Turbine.89 tons of C02 released for 45 tons of steel for the base.
The concrete and steel together for one base use 613 barrels of oil for each base alone. Each base release 498 tons of CO2(A barrel of oil is 42 gallons)
[To build all the wind turbines would require:]
Each hour we would need 14,773 Barrels of oil for these smaller [wind turbines]. And each hour we would release 12,000 tons of CO2.
A few side points…
But the current fossil fuel system of energy is MIND-NUMBINGLY COMPLEX
We know this because renewable sources of energy are so much more abundant than fossil fuels ever were. Just using solar panels in deserts could deliver more than 10x more energy than the entire world uses at present. Furthermore, solar power can produce liquid fuels, and heat for industrial purposes. What's more, solar power is not dramatically more expensive than fossil sources of energy. Finally, solar panels are made out of SILICON which is approximately 10,000x more abundant than all fossil fuels in the Earth's crust ever were, and silicon is not being "burned" when we use the solar panels. As a result, we can conclude that solar power is vastly more abundant than fossil fuels ever were and could substitute for all the uses of fossil fuels. Even though fossil fuels deliver HUGE AMOUNTS of energy, solar power could deliver many times more.
There is also more than enough time to convert the entire world economy to renewables before fossil fuels are exhausted. Fossil fuels won't be totally gone for centuries, which is a lot of time to transition. The entire industrial economy is replaced approximately every 40 years anyway as machinery wears out, and industrialism is younger than 40 years old in many countries (such as China). If we could build or replace such an energy system in less than 40 years, then we could transition our energy system to renewables over centuries.