On-grid performance of REhnu's 8-mirror CPV-T tracker

Thomas Stalcup, J Roger P Angel, Andrew Geary, Frank Sodari, Matt Rademacher, Andy Whiteside, John Will, Nick Didato, Peter A Strittmatter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

REhnu has built and tested two 6 kW CPV-T trackers using dish-receiver architecture. In these trackers, only the light collection elements are large, namely mirrors on dual axis trackers. The inherently small parts, the multijunction cells, are packaged in a small, inexpensive receiver at each mirror focus. Optics in the receiver apportion the intensely focused sunlight equally to many cells, for high optical efficiency and simplified manufacture. Heat is removed by recirculated liquid. The tracker carries eight 2.7 m2 mirrors and receivers. The CSTC DC efficiency of the individual mirror receiver units is measured at 32.5%. When used for electrical generation alone, the tracker system delivers an AC electrical output of 6.27 kW to the grid, referenced to a solar flux of 1 kW/m2 DNI and 20°C ambient temperature, corresponding to a total CSOC system efficiency of 29.1%, matching the best grid-connected system efficiency reported for any CPV system4. When used to generate also a thermal output of 9 kW at 64°C, the electrical efficiency of the tracker was reduced by 0.8%, while the total efficiency, thermal plus electrical, rose to 77%.

Original languageEnglish (US)
Title of host publication13th International Conference on Concentrator Photovoltaic Systems, CPV 2017
PublisherAmerican Institute of Physics Inc.
Volume1881
ISBN (Electronic)9780735415614
DOIs
StatePublished - Sep 6 2017
Event13th International Conference on Concentrator Photovoltaic Systems, CPV 2017 - Ottawa, Canada
Duration: May 1 2017May 3 2017

Other

Other13th International Conference on Concentrator Photovoltaic Systems, CPV 2017
CountryCanada
CityOttawa
Period5/1/175/3/17

Fingerprint

receivers
grids
mirrors
solar flux
thermodynamic efficiency
parabolic reflectors
output
sunlight
cells
ambient temperature
alternating current
direct current
optics
heat
liquids

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Stalcup, T., Angel, J. R. P., Geary, A., Sodari, F., Rademacher, M., Whiteside, A., ... Strittmatter, P. A. (2017). On-grid performance of REhnu's 8-mirror CPV-T tracker. In 13th International Conference on Concentrator Photovoltaic Systems, CPV 2017 (Vol. 1881). [020012] American Institute of Physics Inc.. https://doi.org/10.1063/1.5001411

On-grid performance of REhnu's 8-mirror CPV-T tracker. / Stalcup, Thomas; Angel, J Roger P; Geary, Andrew; Sodari, Frank; Rademacher, Matt; Whiteside, Andy; Will, John; Didato, Nick; Strittmatter, Peter A.

13th International Conference on Concentrator Photovoltaic Systems, CPV 2017. Vol. 1881 American Institute of Physics Inc., 2017. 020012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stalcup, T, Angel, JRP, Geary, A, Sodari, F, Rademacher, M, Whiteside, A, Will, J, Didato, N & Strittmatter, PA 2017, On-grid performance of REhnu's 8-mirror CPV-T tracker. in 13th International Conference on Concentrator Photovoltaic Systems, CPV 2017. vol. 1881, 020012, American Institute of Physics Inc., 13th International Conference on Concentrator Photovoltaic Systems, CPV 2017, Ottawa, Canada, 5/1/17. https://doi.org/10.1063/1.5001411
Stalcup T, Angel JRP, Geary A, Sodari F, Rademacher M, Whiteside A et al. On-grid performance of REhnu's 8-mirror CPV-T tracker. In 13th International Conference on Concentrator Photovoltaic Systems, CPV 2017. Vol. 1881. American Institute of Physics Inc. 2017. 020012 https://doi.org/10.1063/1.5001411
Stalcup, Thomas ; Angel, J Roger P ; Geary, Andrew ; Sodari, Frank ; Rademacher, Matt ; Whiteside, Andy ; Will, John ; Didato, Nick ; Strittmatter, Peter A. / On-grid performance of REhnu's 8-mirror CPV-T tracker. 13th International Conference on Concentrator Photovoltaic Systems, CPV 2017. Vol. 1881 American Institute of Physics Inc., 2017.
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