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.
pricing for solar photovoltaic pv systems generally solar pv systems that generate electricity from sunlight cost between $ 1 95 to $ 6 per installed watt typically the larger the system the lower price per watt large commercial systems are typically well below $ 3 per watt residential systems because of their smaller size are usually somewhat higher