public class Add { private static String rightJustify( String s , int newLength ) { while( s.length() < newLength ) { s =   + s ; } return s ; } private static void justifyAndPrint( String leadingText , int number , int totalLength ) { // convert the number to text String s =  + number ; System.out.println( leadingText + rightJustify( s , ...
Why Solar Energy? A typical residential solar PV panel system in the U.S. costs $3.60/watt after installation, and the solar panels typically save the customer over $20,000 (net) over the course of 20 years. Learn more about the many advantages of solar energy.
$20,000 - $40,000. Traditional Installs are a great way to go solar if you don't mind a large up front cost. Typically systems like this will pay for themselves in 5-10 years depending on electricity usage.Because of the longer term ROI most people choose to go with a Power Purchase Agreement where you can skip the install cost and just pay for the power. What determines the prices of a solar system: 1  Size of System.ypically systems like this will pay for themselves in 5-10 years depending on electricity usage. Because of the longer term ROI most people choose to go with a Power Purchase Agreement where you can skip the install cost and just pay for the power. What determines the prices of a solar system: 1  Size of System.