Well Fred, the Philippines is Rich in Natural the natural resources of Sun, Water and at times Wind, so its not before time that they were utilised.

http://www.wholesalesolar.com/solar-...rid-calculator

http://www.wholesalesolar.com/complete-systems

This is an American Supplier but seems far more understandable that similar British Companies, take a few hour to read the different systems, i would think the Off Grid systems would suit the Philippines.