Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation
Systematic Review and Harmonization
Bibliographic Data
| ID | 19469656 |
|---|---|
| Authors | Dennis Hsu (0000-0003-1108-9656, National Laboratory of the Rockies, corresponding author), David D Hsu, Patrick O’Donoughue (National Laboratory of the Rockies), Vasilis Fthenakis (0000-0001-8979-3366, National Laboratory of the Rockies), Garvin Heath (0000-0001-6010-4475, National Laboratory of the Rockies), Garvin A Heath, Hyung Chul Kim (0000-0002-0992-4547, Ford Motor Company (United States)), Pamala Sawyer (National Laboratory of the Rockies), Jun‐Ki Choi (0000-0001-5954-1889, National Laboratory of the Rockies), Damon E Turney (0000-0003-1759-1735, National Laboratory of the Rockies) |
| Year | 2012 |
| Volume | 16 |
| Issue | s1 |
| Publication date | 2012-04-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Journal of Industrial Ecology (JOURNAL) |
| Journal identifiers | ISSN: 1088-1980 • E-ISSN: 1530-9290 |
| Publisher | Springer Science and Business Media LLC (PUBLISHER) |
| DOI | 10.1111/j.1530-9290.2011.00439.x |
| OpenAlex | W2137261917 |
| Language | EN |
| Citations received | 19 |
| References cited | 28 |
Published scientific literature contains many studies estimating life cycle greenhouse gas (GHG) emissions of residential and utility‐scale solar photovoltaics (PVs). Despite the volume of published work, variability in results hinders generalized conclusions. Most variance between studies can be attributed to differences in methods and assumptions. To clarify the published results for use in decision making and other analyses, we conduct a meta‐analysis of existing studies, harmonizing key performance characteristics to produce more comparable and consistently derived results. Screening 397 life cycle assessments (LCAs) relevant to PVs yielded 13 studies on crystalline silicon (c‐Si) that met minimum standards of quality, transparency, and relevance. Prior to harmonization, the median of 42 estimates of life cycle GHG emissions from those 13 LCAs was 57 grams carbon dioxide equivalent per kilowatt‐hour (g CO 2 ‐eq/kWh), with an interquartile range (IQR) of 44 to 73. After harmonizing key performance characteristics (irradiation of 1,700 kilowatt‐hours per square meter per year (kWh/m 2 /yr); system lifetime of 30 years; module efficiency of 13.2% or 14.0%, depending on module type; and a performance ratio of 0.75 or 0.80, depending on installation, the median estimate decreased to 45 and the IQR tightened to 39 to 49. The median estimate and variability were reduced compared to published estimates mainly because of higher average assumptions for irradiation and system lifetime. For the sample of studies evaluated, harmonization effectively reduced variability, providing a clearer synopsis of the life cycle GHG emissions from c‐Si PVs. The literature used in this harmonization neither covers all possible c‐Si installations nor represents the distribution of deployed or manufactured c‐Si PVs
Electricity · Environmental economics · Greenhouse gas · Industrial ecology · Life-cycle assessment · Photovoltaic system · Photovoltaics · Sustainability · Engineering · Environmental Impact and Sustainability · Environmental Science · Green IT and Sustainability · Photovoltaic Systems and Sustainability
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| Unique citing works | 19 |
|---|---|
| Citations per year | 1,36 |
| Citation span | 2012 - 2026 (15) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 18 |