Installing 3 solar water heaters of three different sizes, our electric bill went down from P19,o00.00/month to P9,000.00/month   That's a savings of P10,000.00 a month. I am sure a big bulk  of the savings came from the use of solar  water heaters. " -Sr. Guadalupe of Good Shepherd, Baguio- solar water heater user since  March 2011