“In combined cycle power plants (CCPP) a gas turbine generator generates electricity while the waste heat from the gas turbine is used to produce steam to generate additional electricity via a steam turbine. Siemens has a wide portfolio of cost competitive, high performance, operationally flexible and easily constructible steam turbines to meet the diverse needs of customers. The exhaust heat of the gas turbine is utilized to generate steam by passing it through a heat recovery steam generator (HRSG), so it can be used to drive the steam turbine. This combination of two power generation cycles enhances the efficiency of the plant. Combined cycle power plants equipped with the latest Siemens technology achieve unprecedented efficiency levels of more than 60 percent.”
An internal combustion engine (ICE) is about 10% efficient.
The modern generation of electric power is about six times more energy efficient than the car’s ICE.
The loss of electrical energy via transmission, the battery and the electric motor might be around 20%, so 6*(1-.2) makes electric cars about 4.8 times more energy efficient than ICE cars.
According to Georgia power most of their generation comes from coal. I live in GA so that’s what I go by. OTO if you live in NY then oddly enough you get a lot of your energy from Ontario Hydro which in spite of its name gets 60% of its power from nuclear and only 20% from hydro
Explain to me how generating useful energy from waste heat from gas turbines doesn’t violate the second law of thermodynamics if you can. By definition waste heat is not usable energy. If they’re recovering enough waste heat to run a steam turbine then they’re not extracting as much energy as they could on the gas turbine side.
Triple a says modern gas engines are only 30 to 35% efficient. What location did you pull that 10% from?
And where do you think that additional 11x the total output of all the US nuclear power plants is going to come from? I don’t think the electricity fairy has that much available. The electricity fairy is related to the lithium fairy in that they magically make resources available that electric car cheerleaders never explain.
In addition I live about 650 miles from Palm Beach. So let’s both go to Mar a Lago on the 4th to cheer president Trump. I’ll take my Chrysler minivan that get 23 mpg with the air conditioning full on. And you take an electric car. It takes me 10 to 11 hours to complete the trip including gas stops. How long would it take you to cover the same distance in an EV?