Explain how energy evolved over time into a consumable good. Does it still satisfy the original need for which it was created? Why or why not? How have our basic needs for energy changed?
According to Aubrecht (2006), the daily energy use per person has increased from 2,000 kcals when humans were just hunters to 244,526 kcals in 2000. From the beginning of the human race, we have used energy; First by setting wood and other materials on fire, using animals to assist in daily tasks, to using machinery, to finally evolving to the massive use of energy today. Today energy is still needed to cook our food and make our daily lives easier thus satisfying the original need. Although energy is still necessary, I believe humans use too much
Reference: …show more content…
J. (2006). Energy: Physical, environmental, and social impact (3rd ed.). Upper Saddle River, NJ: Pearson-Prentice Hall.
WK2-DQ2:
Explain what is meant by base load, intermediate load, and peak load. Why are these concepts important to understanding the production of electricity and energy management? How do these relate to the end users of the product?
According to Aubrecht, base load is the basic amount of electricity that is always required. Base load is generated by the utilities large facilities. Intermediate load is the amount of electricity that slowly cycles on and off. Peak load is the time in which demand for electricity is the greatest. Peak load is usually only a few hours a day. Utilities meet peak load demand by using additional generators that can be stated quickly.
Electricity cannot be easily stored. Therefore, demand has to be anticipated by the utility company. Season and time of day are the predominate drivers of consumption. Enough electricity needs to be supplied to meet demand on the hottest day of summer. Maintaining a reliable electric system without interrupting power to the consumer cannot be accomplished without the balance of supply and demand.