1) Variability: This is the biggest and most vexing.
Power plants that run on fuel (along with some hydro and geothermal plants) can be ramped up and down on command. They are, in the jargon, "dispatchable." But VRE plants produce power only when the wind is blowing or the sun is shining. Grid operators don't control VRE, they accommodate it, which requires some agility.
2) Uncertainty: The output of VRE plants cannot be predicted with perfect accuracy in day-ahead and day-of forecasts, so grid operators have to keep excess reserve running just in case.
3) Location-specificity: Sun and wind are stronger (and thus more economical) in some places than in others — and not always in places that have the necessary transmission infrastructure to get the power to where it's needed.
4) Nonsynchronous generation: Conventional generators provide voltage support and frequency control to the grid. VRE generators can too, potentially, but it's an additional capital investment.
5) Low capacity factor: VRE plants only run when sun or wind cooperates.
<span>This would be considered a chemical energy. Consuming food, which contains chemical energies, powers the body to be able to move, talk, proceed with other normal functions. As the foods are broken down inside the body, chemical reactions are formed, powering the ant.</span>
Answer:
C. Yes, the force applied to the car affects the motion.
Explanation:
Answer:
Codominance
Explanation:
In genetics, codominance refers to a type of inheritance in which two variants (alleles) of the same gene are expressed differently in one individual, resulting in different phenotypes.
