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Based on a recent report on utility scale solar in the U.S., the price of electricity from utility-scale solar is in the U.S. is now at 5 cents/ kWh (average)
You can find the full report here.
This number is 70% lower than it was in 2009, and is highly competitive with other power sources (natural gas, coal, wind). This price does includes the federal tax incentive (30%), meaning that the unsubsidized cost would be closer to 7 cents/kWh.
By comparison, the average price that industrial and residential customers pay for electricity in the U.S. this year is around 7 and 13 cents / kWh:
http://www.eia.gov/electricity/monthly/epm_table_grapher.cfm?t=epmt_5_6_a