How much can we save if we shift to the use of solar panels?

Answer: 
According to Philippine Solar Power Adventure Inc., solar panels allow you to produce your own clean electricity with solar energy. This saves you Php 200 to Php 10,000 for the first year alone. You should see savings from Php 10,000 to Php 50,000 or more over the next 25 years depending on your solar setup and household power usage.
Question: 
How much can we save if we shift to the use of solar panels?