Harsh weather as a conributor to PV degradation and reliability
Abstract not provided.
Publications
PV CAMPER Annual Report 30 December 2020
The objective of the Photovoltaic Collaborative to Advance Multi-climate and Performance Research (PVCAMPER) is to: 1) Build and maintain a multi-climate research platform to enable pioneering photovoltaic research; 2) Validate the performance of emerging technologies in specific climates; 3) Help accelerate the world’s transition to a solar-intensive economy. Our focus in achieving those goals is to foster collaborative research and to build an international organization dedicated to improving data quality, minimizing measurement uncertainty and exchanging best practices related to PV performance.
Conceptual Design and Rationale for a New Agrivoltaics Concept: Pasture-Raised Rabbits and Solar Farming
Journal of Cleaner Production
Land-use conflicts created by the growth of solar photovoltaics (PV) can be mitigated by applying the concept of agrivoltaics, that is, the co-development of land for both PV and agricultural purposes, to commercial-scale solar installations. In this study, we present a conceptual design for a novel agrivoltaic system based on pasture-fed rabbit farming and provide the technical, environmental and economic analyses to demonstrate the viability of the concept. Included in our analysis are the economic advantages to the PV operator of grazing rabbits at a density sufficient to control vegetative growth, thus reducing the economic and environmental costs of mowing; the dual-revenue stream from the sale of both rabbits and electricity, contrasted with estimates of the capital-investment costs for rabbits co-located with, and also independent of, PV; and the economic value to the rabbit farmer of higher colony-growth rates (made possible by the shading and predator protection provided by the PV arrays and of reduced fencing costs, which are the largest capital cost, by being able to leverage the PV systems for rabbit fencing. We also provide an environmental analysis that suggests that rabbit-PV farming is a pathway to a measurable reduction in agriculturally-generated greenhouse-gas emissions. Our calculations indicate that the co-location of solar and rabbit farms is a viable form of agrivoltaics, increasing overall site revenue by 2.5%–24.0% above projected electricity revenue depending on location and rental/ownership of rabbits, while providing a high-value agricultural product that, on a per weight basis, has significantly less environmental impact than cattle.
Optimization of Photovoltaic Systems for Northern Latitudes
Abstract not provided.
Increasing Photovoltaic Efficiency in Snowy Climates: Design Considerations
Abstract not provided.
Solar Over-Irradiance Events: Preliminary Results from a Global Study
Conference Record of the IEEE Photovoltaic Specialists Conference
This paper presents the methodology and preliminary results from a global study on solar over-irradiance events, which are more frequent than previously believed and can negatively impact utility-scale PV operations. Data from five test sites in Florianópolis and Brotas de Macaúbas in Brazil, Bernburg in Germany, Albuquerque, in the USA and Loughborough, in the United Kingdom are presented and analyzed.
Image Analysis Method for Quantifying Snow Losses on PV Systems
Abstract not provided.
Image Analysis Method for Quantifying Snow Losses on PV Systems
Abstract not provided.
Snow as a Factor in Photovoltaic Performance and Reliability
Abstract not provided.
Photovoltaic Collaborative to Advance Multi-Climate Performance and Energy Research (PV CAMPER)
Abstract not provided.
Building the Foundation for a Terwatt World
Abstract not provided.
PhotoVoltaic Collaborative to Advance Multiclimate Performance and Energy Research
Abstract not provided.
Increased Performance of Photovoltaic Systems Installed at Northern Latitudes
Abstract not provided.
The Nevada Regional Test Center: An Opportunity for Impact
Abstract not provided.
PV Performance and Reliability in Snowy Climates: Opportunities and Challenges
Abstract not provided.
PV Performance and Reliability in Snowy Climates: Opportunities and Challenges
Abstract not provided.
Performance of Bifacial Modules on a Dual-Axis Tracker in a High-Albedo Environment
Abstract not provided.
Performance of Bifacial Modules Dual-Axis Trackers in a High-Latitude High-Albedo Environment
Abstract not provided.
PhotoVoltaic Collaborative to Advance Multiclimate Performance and Energy Research
Abstract not provided.
Differences in Snow Shedding in Photovoltaic Systems with Framed and Frameless Modules
Conference Record of the IEEE Photovoltaic Specialists Conference
Energy losses due to snow coverage can be high in climates with large annual snowfall. These losses may be reduced with region-specific system design guidelines. One possible factor in snow retention on PV systems could be frame presence and/or shape. Sandia is studying the effect of module frame presence on photovoltaic module snow shedding for a pair of otherwise-identical PV systems in Vermont. The results of this study provide a summary of the findings after the 2018-2019 winter period. The results clearly show that the presence of a frame inhibits PV performance in mild winter conditions.
Snow Shedding Differences between Framed and Frameless Modules - Poster
Abstract not provided.
Sandia's Technical Approach to Cross-Climate Performance Analysis
Abstract not provided.
Electroluminescent Imaging of Modules Exposed to Snow and Ice Loading: a Preliminary Analysis
Abstract not provided.
Supporting the Global Growth of PV: an International Collaborative to Improve Data Quality and Minimize Measuement Uncertainty
Abstract not provided.
Performance of Bifacial Modules on a Dual-Axis Tracker in a High-Albedo Environment
Abstract not provided.
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