Environment & Energy
In reply to the discussion: Sky-High Radiation Found in Fukushima Fish [View all]PamW
(1,825 posts)mother earth,
It's really very simple. In order for our electric grid to stay operational, the generators have to supply exactly as much energy as we draw off the grid. That doesn't mean averaged over the day, like the wind / solar proponents say; it means instant to instant. If the grid stayed up and we continued to draw the energy demanded from it; but the generators were putting less than that amount of energy into the grid; then we would be manufacturing energy out of nothing. The Laws of Physics don't allow for that. The grid would crash.
Think of the grid like your bank checking account. The banks now offer "over-draft protection"; if you write more checks than the amount you have in your account, the bank will loan you the money. As long as your income for the month covers all the checks you wrote that month, it doesn't matter that you wrote a bunch of checks in the early days of the month to cover mortgage and other expenses when you didn't have the money. As long as your income averaged over the month meets your outlay; you are OK.
Now think of how it was before banks offered overdraft protection. Back then, as soon as there was no money in your checking account since it had all been paid out; the bank would refuse to honor your checks due to lack of funds. It didn't matter that you were going to get another paycheck in the middle of the month that would cover the funds.
The Laws of Physics are like this latter case. The Laws of Physics don't extend us temporary credit when it comes to making energy. We have to generate the energy as we use it, and we don't get credit for energy we will generate in the future.
Suppose we run the grid on 100% wind and solar. Now think what happens at night when the wind stops blowing which can certainly happen. The solar panels can't see the sun, so they give us no energy. The wind has stopped, so our wind turbines don't give us energy. Mother Nature has stopped offering us wind / solar energy. If wind / solar were all we had; then the grid would collapse.
We need electric energy 24 / 7 to power our world. We need electric energy 24 / 7 to keep all our refrigeration systems running for our food supply. The whole food delivery chain is based on refrigeration to deliver us healthy food. We need a grid we can count on for that.
So where does the electric energy come from if we only have renewables and Mother Nature stops offering us energy?
NO - we need energy sources that WE control, that we have a throttle on. When the demand goes up; we have a throttle so we can increase generation.
Tell me how we keep a grid powered when the wind stops blowing at night. Solar power goes down for the entire country at night; and we don't have powerlines that reach half-way around the world.
We need more than will. Contrary to your ill-considered statement above, will is NOT ENOUGH.
We have to have systems that are consistent with the Laws of Physics. If the Laws of Physics say "NO"; then all the human will in the world can't get around that.
As long as you keep denying that reality; you are absolutely no better than a climate denier, and have no right to say that you are on the same side as science.
PamW