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.
Residential solar electric systems on average, cost about $20,000, but Dave Stapleton, President of David Homes, said in western New York, state and federal subsidies cover about half the cost, bringing it down to about $10,000 in out-of-pocket costs. âRight now, itâs about the consumer making a choice.nce the solar array is up and running, Rizzo says that the general rule for commercial solar panels is that it will begin to pay for itself in three-to-five years. âSo you are hedging against future rate increases, and it is giving you the power to really take control of your overall electric usage,â he added.