LAPSE:2019.0131
Published Article
LAPSE:2019.0131
The Energy and Environmental Performance of Ground-Mounted Photovoltaic Systems—A Timely Update
Enrica Leccisi, Marco Raugei, Vasilis Fthenakis
January 7, 2019
Given photovoltaics’ (PVs) constant improvements in terms of material usage and energy efficiency, this paper provides a timely update on their life-cycle energy and environmental performance. Single-crystalline Si (sc-Si), multi-crystalline Si (mc-Si), cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS) systems are analysed, considering the actual country of production and adapting the input electricity mix accordingly. Energy pay-back time (EPBT) results for fixed-tilt ground mounted installations range from 0.5 years for CdTe PV at high-irradiation (2300 kWh/(m²·yr)) to 2.8 years for sc-Si PV at low-irradiation (1000 kWh/(m²·yr)), with corresponding quality-adjusted energy return on investment (EROIPE-eq) values ranging from over 60 to ~10. Global warming potential (GWP) per kWhel averages out at ~30 g(CO₂-eq), with lower values (down to ~10 g) for CdTe PV at high irradiation, and up to ~80 g for Chinese sc-Si PV at low irradiation. In general, results point to CdTe PV as the best performing technology from an environmental life-cycle perspective, also showing a remarkable improvement for current production modules in comparison with previous generations. Finally, we determined that one-axis tracking installations can improve the environmental profile of PV systems by approximately 10% for most impact metrics.
Keywords
cadmium telluride (CdTe), copper indium gallium diselenide (CIGS), crystalline Si (c-Si), energy pay-back time (EPBT), energy return on investment (EROI), environmental performance, life cycle assessment (LCA), net energy analysis (NEA), photovoltaic (PV)
Suggested Citation
Leccisi E, Raugei M, Fthenakis V. The Energy and Environmental Performance of Ground-Mounted Photovoltaic Systems—A Timely Update. (2019). LAPSE:2019.0131
Author Affiliations
Leccisi E: Department of Science and Technology, Parthenope University of Naples, Centro Direzionale-Isola C4, Naples 80143, Italy; Center for Life Cycle Analysis, Columbia University, New York, NY 10027, USA
Raugei M: Department of Mechanical Engineering and Mathematical Sciences, Oxford Brookes University, Wheatley OX33 1HK, UK; Center for Life Cycle Analysis, Columbia University, New York, NY 10027, USA [ORCID]
Fthenakis V: Center for Life Cycle Analysis, Columbia University, New York, NY 10027, USA; Photovoltaic Environmental Research Center, Brookhaven National Laboratory, Upton, NY 11973, USA
[Login] to see author email addresses.
Journal Name
Energies
Volume
9
Issue
8
Article Number
E622
Year
2016
Publication Date
2016-08-08
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en9080622, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2019.0131
This Record
External Link

doi:10.3390/en9080622
Publisher Version
Download
Files
[Download 1v1.pdf] (2.4 MB)
Jan 7, 2019
Main Article
License
CC BY 4.0
Meta
Record Statistics
Record Views
557
Version History
[v1] (Original Submission)
Jan 7, 2019
 
Verified by curator on
Jan 7, 2019
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2019.0131
 
Original Submitter
Calvin Tsay
Links to Related Works
Directly Related to This Work
Publisher Version