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.
Real solar cost estimates show how state, regional, and local incentives are helping bring the cost of solar way down. In many states, you can go solar for less than $10,000.Hereâs a look at the average cost to go solar in each state (See first image).eal solar cost estimates show how state, regional, and local incentives are helping bring the cost of solar way down. In many states, you can go solar for less than $10,000.