1 SolarCraft.com states that installing solar panels in a residential pool can cost from $2,500 to $7,000, depending on location and pool size, placement of solar panels, preferred temperature, season of installation, and pool equipment type.
For example, you may be here from morning until mid-afternoon one day and from mid-morning to evening with a long break in between on another day. For most programs, you will be in class for about 20 hours/week, with the addition of time needed for homework, reading, group work, labs, etc. Keep in mind that your timetable is also likely to change from one semester to the next.
Usually classes that meet on MWF are 50 minutes and classes that meat T/Th are 1 hour and 15 minutes. That totals to about 3 hours a week, which is why you get 3 hours credit for a normal class. Some classes (like science) also have a lab requirement.