The Questa Solar Facility is a 1.17 MWp (1.0 MWAC) concentrator photovoltaics (CPV) power station in Questa, New Mexico. Upon its completion in late 2010, it was one of the largest CPV facilities in the world, and the first utility-scale installation of Concentrix Solar technology in the United States.[1] Annual electricity production is expected to average about 2.1 GW·h, and is being sold to the Kit Carson Electric Cooperative under a 20-year power purchase agreement (PPA).[2][3]

Questa Solar Facility
Map
CountryUnited States
LocationQuesta, New Mexico
Coordinates36°43′01″N 105°36′34″W / 36.71694°N 105.60944°W / 36.71694; -105.60944
StatusOperational
Commission date2010
OwnerChevron Technology Ventures
Solar farm
TypeCPV
Site area20 acres (8 ha)
Power generation
Units operational173 Concentrix CX-P6
Nameplate capacity1.17 MWp, 1.0 MWAC
Capacity factor21.9% (average 2011-2020)
Annual net output1.92 GWh, 96 MW·h/acre

Facility details

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The facility was built by Chevron Technology Ventures on a reclaimed site previously used for the collection and storage of molybdenum mine tailings.[2][3] It consists of 173 dual-axis-tracking CX-P6 systems, each of which supports 90 CX-75 CPV modules.[1] Each module contains 200 Fresnel lens to concentrate sunlight 500 times onto multijunction photovoltaic cells.[4] These features enable higher efficiencies - about 40% for cells and 27% for modules - than other photovoltaic technologies. [5]

Each of the 173 trackers has its own grid-connected inverter, which also serves as the control system of the mechanical tracking and as the communication port with its own IP address. The inverter technology was developed by Fraunhofer ISE in cooperation with Concentrix Solar and has an efficiency of 96%. For control and monitoring, the facility also includes DNI sensors, GNI sensors and wind sensors. A detailed analysis of the system and power plant performance can be made based on data that is taken at one-minute intervals.[6]

Electricity production

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Generation (MW·h) of Questa Solar Facility[7]
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total
2011 129 135 170 173 193 156 162 158 148 157 133 113 1,827
2012 169 171 216 202 232 213 224 187 188 203 170 242 2,417
2013 129 139 177 169 191 182 179 175 168 185 137 131 1,963
2014 93 90 112 108 202 448 372 365 329 349 264 215 2,949
2015 100 133 156 182 192 180 171 177 154 129 119 107 1,798
2016 64 77 96 98 108 98 104 130 156 190 170 142 1,433
2017 82 122 175 188 203 193 184 172 153 157 113 99 1,840
2018 101 119 154 186 215 231 201 201 193 144 119 86 1,947
2019 88 93 138 163 173 195 185 188 155 153 95 69 1,695
2020 78 82 93 130 145 136 133 126 111 106 85 78 1,302
Average Annual Production for years 2011-2020 ---> 1,917

See also

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References

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  1. ^ a b "Concentrix Solar Enters the US Market with Megawatt CPV Deployment at a Chevron Facility" (PDF). Soitec/Concentrix Solar. February 24, 2010. Retrieved January 19, 2019.
  2. ^ a b "Chevron Starts Operations of 1 MW CPV Solar Field in Northern New Mexico". Business Wire. April 19, 2011. Retrieved January 19, 2019.
  3. ^ a b "Case Study-New Energies: Utility-Scale Solar on a Tailing Disposal Facility - Chevron Questa Mine Superfund Site in Questa, New Mexico" (PDF). Environmental Protection Agency. July 2013. Retrieved February 11, 2019.
  4. ^ Andreas Gombert (July 11, 2009). "Concentrix Solar's FLATCON technology" (PDF). Concentrix Solar. Retrieved February 1, 2019.
  5. ^ Gail Overton (February 1, 2010). "Optics take center stage in concentrating photovoltaic systems". Laser Focus World. Retrieved January 19, 2019.
  6. ^ Andreas Gombert and Christophe Desrumaux (May 1, 2010). "Concentrator photovoltaics: a mature technology for solar power plants". Renewable Energy World. Retrieved January 19, 2019.
  7. ^ "Questa Solar Facility, Monthly". Electricity Data Browser. Energy Information Administration. Retrieved November 7, 2021.