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Solar electric systems are in many cases economically superior to conventional power systems. The operating costs are low because solar electricity needs very little maintenance, very few spare parts, and no fuel. There are no moving parts, so the system has a very long lifetime, and it is virtually maintenance-free.
Solar is a low-risk, high-return investment. No matter what size system you buy, or what percentage of your electric usage you offset, your, payback period will be relatively the same. It is all a matter of how much you can invest to hedge against rising energy costs.
Once your system is "paid back," you have $0 invested in your system, and a percentage of your electricity bill eliminated for decades.
How the rebates Affect a System that cost approximately (depending on roof requirements) $19,320 (produces 2,760DC Watt).
Photovoltaic rebates vary from both State and Local utility companies offer substantial rebate that help offset the majority of the gross cost.
Effective January 1, 2007, the California Solar Initiative established two state rebate programs; Expected Performance Based Buy down (EPBB) and Performance Based Incentive (PBI).
This program provides a one-time, upfront incentive for solar electric systems less than 100 kW. Rebate amounts are determined by the expected performance of the system. Expected performance is calculated based on equipment rating and installation factors, such as geographic location, tilt and shading.
This program provides monthly incentive payments based on energy production over a 5-year period for solar electric systems 100kW or greater, although any other size system may also select into the PBI incentive structure.
In addition to State incentives, the Federal government offers a 30% Federal tax credit that can be carried 5 years. That's another 30% discount!