Prediction of energy effects on photovoltaic systems due to snowfall events

  title={Prediction of energy effects on photovoltaic systems due to snowfall events},
  author={R. Andrews and Joshua M. Pearce},
  journal={2012 38th IEEE Photovoltaic Specialists Conference},
The accurate prediction of yields from photovoltaic systems (PV) is critical for their proper operation and financing, and in northern latitudes the effects of snowfall on yield can become significant. This work provides methods for identifying snowfall effects from commonly collected performance data, and recommends a model to allow for prediction of these effects based solely on meteorological time series. The model was validated with data from two large-scale (>;8MW) operational PV plants… Expand
Predicting the energy production by solar photovoltaic systems in cold-climate regions
ABSTRACT One challenge in designing a photovoltaic (PV) system is to predict its generation, given parameters such as location, meteorological conditions, and layout. A greater challenge is toExpand
Identifying snow in photovoltaic monitoring data for improved snow loss modeling and snow detection
Abstract As cost reductions have made photovoltaics (PV) a favorable choice also in colder climates, the number of PV plants in regions with snowfalls is increasing rapidly. Snow coverage on the PVExpand
Performance modeling and valuation of snow-covered PV systems: examination of a simplified approach to decrease forecasting error
A new, simplified approach to decrease snow-related forecasting error, in comparison to current solar energy performance models is proposed to allow model designers, and ultimately users, the opportunity to better understand the return on investment for solar energy systems located in snowy environments. Expand
Commercial implementation of a snow impact model for PV performance prediction
  • S. Pisklak
  • Environmental Science
  • 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC)
  • 2016
Studies have shown how to combine snow depth measurements with commonly available meteorological data to estimate the contribution of snow cover to PV power loss. A key input to these methods isExpand
Commercial implementation of a snow impact model for PV performance prediction
  • S. Pisklak
  • 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC)
  • 2017
Studies have shown how to combine snow depth measurements with commonly available meteorological data to estimate the contribution of snow cover to PV power loss. A key input to these methods isExpand
Snow Loss Prediction for Photovoltaic Farms Using Computational Intelligence Techniques
The results achieved prove the effectiveness of the proposed models for the prediction of daily snow loss of PV farms, with gradient boosted trees obtaining the minimum prediction error and thus the best performance. Expand
Impact of Snow and Ground Interference on Photovoltaic Electric System Performance
Assessing snow-related energy losses is necessary for accurate predictions of photovoltaic (PV) performance. A PV test platform with seven portrait-oriented modules placed at four tilt angles (0°,Expand
Image Analysis Method for Quantifying Snow Losses on PV Systems
Modeling and predicting snow-related power loss is important to economic calculations, load management and system optimization for all scales of photovoltaic (PV) power plants. This paper describes aExpand
Differences in Snow Shedding in Photovoltaic Systems with Framed and Frameless Modules
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 retentionExpand
A new method to determine the effects of hydrodynamic surface coatings on the snow shedding effectiveness of solar photovoltaic modules
Abstract As solar photovoltaic (PV) installations have become more common in regions that experience substantial snowfall, losses in energy production due to snow coverage have grown in concern.Expand


Snow-covering effects on the power output of solar photovoltaic arrays
In general, snow covering a photovoltaic panel causes negligible energy loss when the snow is light and melts easily; however, a more serious loss can occur when the snow is heavy and does notExpand
Photovoltaics and snow: An update from two winters of measurements in the SIERRA
With snowy locations becoming common for large photovoltaic (PV) installations, analytical models are now needed to estimate the impact of snow on energy production. A generalized monthly snow lossExpand
Performance monitoring of a building-integrated photovoltaic system in an urban area
This paper focuses on the performance monitoring of a building-integrated PV system located in an urban area. The building has a rated power of 76 kW array consisting of sub-arrays installed on theExpand
Performance parameters for grid-connected PV systems
The use of appropriate performance parameters facilitates the comparison of grid-connected photovoltaic (PV) systems that may differ with respect to design, technology, or geographic location. FourExpand
Spatial insolation models for photovoltaic energy in Canada
Abstract Spatial models of global insolation and photovoltaic electricity generation potential for Canada were developed. The main objective was to provide Canadians with an easily accessible,Expand
Estimating Potential Photovoltaic Yield with r.sun and the Open Source Geographical Resources Analysis Support System
The package r.sun within the open source Geographical Resources Analysis Support System (GRASS) can be used to compute insolation including temporal and spatial variation of albedo and solarExpand
Improved parametric empirical determination of module short circuit current for modelling and optimization of solar photovoltaic systems
This work used a modified version of the Sandia array performance model, and introduces new factors to the calculation of Isc to account for identified error mechanisms, including instrumentation alignment, spectral, and module power tolerance errors. Expand
Photovoltaic array performance model.
This document summarizes the equations and applications associated with the photovoltaic array performance model developed at Sandia National Laboratories over the last twelve years. Electrical,Expand
Open Solar Photovoltaic Systems Optimization
This paper documents how teamwork between educational institutions and industry has resulted in one of the largest systems in the world for this detailed level of analysis of PV systems performance in real-world conditions. Expand
A Review of Solar Photovoltaic Levelized Cost of Electricity
The methodology of properly calculating the levelized cost of electricity for solar PV is reviewed, correcting the misconceptions made in the assumptions found throughout the literature and a template is provided for better reporting of LCOE results for PV needed to influence policy mandates or make invest decisions. Expand