Solar power in Kentucky has been growing in recent years due to new technological improvements and a variety of regulatory actions and financial incentives, particularly a 30% federal tax credit, available through 2016, for any size project. Kentucky could generate 10% of all of the electricity used in the United States from land cleared from coal mining in the state. Covering just one-fifth with photovoltaics would supply all of the state's electricity.[1]
The Berea Solar Farm is a community solar farm, which opened with 60 235-watt solar panels (14.1 kW).[2] All of the available panels sold out in four days.[3]
A 2 MW single axis tracking solar farm began operation in 2011 in Bowling Green.[4] [5] As of 2011, the largest system on any farm in the state was the 100.32 kW array completed on November 1, 2011, in Fancy Farms.[6] The first hospital in the state to use solar power is Rockcastle Regional Hospital in Mt. Vernon, which installed a 60.9 kW array on the roof in November, 2011.[7]
In 2015, Fort Campbell installed a 1.9MW solar farm that provides 10% of the electricity used by the base.[8]
Kentucky's only maker of solar panels is Alternative Energy Kentucky.[9]
Kentucky has a net metering program that allows installations of up to 30 kW of on-site electrical generation to continuously roll over any excess generation to the next month. Participation is limited to 1% of utilities peak demand the prior year.[10] The Kentucky Solar Energy Society is lobbying to increase the limit, noting that 17 states allow at least 2 MW capacity to use net metering.[11] Three states have no limit - Arizona, New Jersey, and Ohio.[12] Rhode Island has a 5 MW limit,[13] and New Mexico has a limit of 80 MW.[14]
Kentucky has an average of about 4.5 sun hours per day, similar to Germany which is at 4.8 sun hours per day.[15] [16]
DateFormat = x.yPeriod = from:0 till:6TimeAxis = orientation:verticalScaleMajor = unit:month increment:1 start:0
TextData = pos:(15,220) textcolor:black fontsize:M text:hrs pos:(205,25) textcolor:black fontsize:S text:Month pos:(90,230) textcolor:black fontsize:M text:Lexington Sun Hours/day (Avg = 4.54 hrs/day)
Colors = id:yellow value:yellow
PlotData= width:20 textcolor:black bar:Jan color:yellow from:0 till:3.23 text:3.23 shift:(-10,45) bar:Feb color:yellow from:0 till:3.85 text:3.85 shift:(-10,55) bar:Mar color:yellow from:0 till:4.38 text:4.38 shift:(-10,60) bar:Apr color:yellow from:0 till:5.28 text:5.28 shift:(-10,70) bar:May color:yellow from:0 till:5.48 text:5.48 shift:(-10,75) bar:Jun color:yellow from:0 till:5.84 text:5.84 shift:(-10,80) bar:Jul color:yellow from:0 till:5.51 text:5.51 shift:(-10,75) bar:Aug color:yellow from:0 till:5.40 text:5.40 shift:(-10,75) bar:Sep color:yellow from:0 till:4.94 text:4.94 shift:(-10,70) bar:Oct color:yellow from:0 till:4.61 text:4.61 shift:(-10,65) bar:Nov color:yellow from:0 till:3.36 text:3.36 shift:(-10,50) bar:Dec color:yellow from:0 till:2.58 text:2.58 shift:(-10,40)
Source: NREL[17]
Kentucky Grid-Connected PV Capacity (MW)[18] [19] [20] [21] [22] [23] | ||||
---|---|---|---|---|
Year | Capacity | Installed | % Change | |
2010 | 0.2 | 0.2 | ||
2011 | 3.3 | 3.1 | 1550% | |
2012 | 4.8 | 1.5 | 45% | |
2013 | 7.9 | 3.2 | 68% | |
2014 | 8.4 | 0.5 | 6% | |
2015 | 9.5 | 1.1 | 13% | |
2016 | 27 | 17.5 | 184% | |
2017 | 47 | 20 | 74% | |
2018 | 50 | 3 | 6.3% | |
2019 | 54.6 | 4.6 | 9.2% | |
2020 | 59.5 | 4.9 | 8.9% | |
2021 | 71 | 11.5 | % | |
2022 | 157 | 86 | % |