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.
The bulk of the price of going solar is now the âsoft costsâ (installation, permitting, etc.) rather than the solar panel cost. Referencing the latest US Solar Market Insight report, the average installed cost of a residential solar panel system is just under $3.50/watt. However, prices vary tremendously by region.