Updated 11 April 2016
Utilities are selling conventional power for 50-65 $/MWh in Ohio (1). Meanwhile energy generate from wind in our region (IL, IN, MI, OH, & WI) is selling from $35 to $ 50 per MWh (2,3). Wind is clearly a cheaper option here.
The competitiveness of Solar is more difficult to judge. In sunnier regions, the price is $50-60 per MWh (4). Columbus has about 25 percent less sun than cities with recently-installed solar installations (5). So we estimate the price of industrial solar in Columbus to be 25 percent higher or $62-75 per MWh. This price is barely competitive with conventional power in First Energy Territory ($64 per MWh), but high in other parts of the state.
(1) PUCO, Apples To Apples Chart Archive, accessed April 9, 2016, http://www.puco.ohio.gov/apps/directorylister/index.cfm?path=Electric%5C&filearea=1
(2) Ryan Wiser, et al., 2014 Wind Technologies Market Report, Aug. 2015 (n. b. fig. 46) https://emp.lbl.gov/sites/all/files/lbnl-188167_1.pdf
(3) Michigan Public Service Commission, Report On The Implementation Of The P.A. 295 Renewable Energy Standard And The Cost-Effectiveness Of The Energy Standards, February 12, 2016 http://www.michigan.gov/documents/mpsc/PA_295_Renewable_Energy_Report_2-12-16_514511_7.pdf
(4) M. Makyhoun, et al. Utility Solar Market Snapshot, May 2015 https://www.solarelectricpower.org/media/322918/solar-market-snapshot-2014.pdf
(5) Current Results, Average Annual Sunshine in American Cities, http://www.currentresults.com/Weather/US/average-annual-sunshine-by-city.php