The secret of making most of benefit from solar system is to obtain:
The LOWEST initial capital cost
- Do not go for the solar companies who advertise everyday or no installation experience. work subcontracted.
1/3 of your cost goes to pay their big office, big advertisement, rich CEO and sweet mouth salespersons
- Do not apply PPA financing unless you have little income tax bracket or low cash deposit.
- Do not buy expensive PV panels, they get 5% more efficiency but price are double
- Do not go for high technology, their price is so high that you have to pay extra 18 months to recover the extra cost, unless with tree shade condition or mismatch condition. Do not buy into high tech. revolutional high tech comes up every 5 years. A new tech today will be an antique in 20 years.
What's left? low initial cost!
Every watt of solar generates average 25 cents of electricity annually. A whole year of solar system runing will be wasted on any reason of 25cents higher initial cost.