US subsidized utility scale solar in the desert southwest runs about .04@kwh —as of 2015.
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NV Energy recently reported signing a PPA for the 100 MW output of First Solar’s Playa Solar 2 installation at $0.0387/kWh after paying at $0.046/kWh for the output of SunPower’s 100 MW Boulder Solar installation last year. The utility bought utility-scale solar power for an average of $0.1377 per kWh for solar generation over the course of 2014.
Austin Energy recently received record low bids below $0.04/kWh in response to its 2015 request for proposals (RFP). Those bids were 20% lower than the contract it signed with Recurrent Energy in 2014 for $0.045/kWh and only 25% of the $0.16/kWh it paid for the 30 MW Webberville project, the utility’s first large installation.
I’ve been watching the consumer level solar panel market and they’ve been continually getting more powerful and cheaper for years. There are 485 watt Kyocera or LG panels now, for what a 200 watt panel cost less than a decade ago. These are the “good” ones, not the throwaway Chinese panels. 25 year warranty.