Frank wrote:Do you have a source for your rebuttal? He claims it takes 6kwh to pump water around which is the source of the electricity consumption. It sounds like a lot but who knows for sure. I always thought most of the energy consumed during refining came from the crude itself. I've tried to research electricity consumption myself but couldn't find anything definitive.
Actually he just says this:
In California, oil refineries are the second largest users of electricity. Moving water around the state via water authorities is the single largest contributor to state electricity use. And, you guessed it, refining crude also takes a tremendous amount of water!
He doesn't give any value to the energy used or any value to the amount of water used. While it's true that refineries use a lot of electricity it's also true that most of it is generated from petroleum byproducts, which also supplies power to the grid. However on a percentage basis the largest energy input in refining is heat, not electricity. They entire petroleum cycle is considered to be around 80% efficient from the well to the gas station. With around 33kWh equivalent in each gallon of gas that means about 6.6kWh's, 20%, of that energy equivalent is used to create it. Only a small portion of that 6.6kWh of potential energy is actually electricity, and most of it, maybe all of it, came from petroleum byproducts, like natural gas.