Solar energy that is used to heat water as part of the hot water ...

[mckennatimberlake]

Solar energy that is used to heat water as part of the hot water system or as part of the main heating system for residential applications ________
 
  a. Needs to circulate a glycol solution to prevent the solution from freezing.
  b. Needs to circulate a glycol solution because glycol should be added to the drinking water and potablewater.
 c. Does not need a heat exchanger as it is okay for the glycol and potable water to mix.

Question 2

Identify the total daily electrical demand for residential, commercial, and industrial uses of electricity.
 
  What will be an ideal response?

[sailorcrescent]

Answer to Question 1

A

Answer to Question 2

Table 2-1 indicates that the residential consumption is 3.79 billion kW per day, industrial consumption is 3.71 billion kW, and the industrial sector consumption is 2.74 billion kW per day.