An Improved Coefficient Calculator for the California Energy Commission 6 Parameter Photovoltaic Module Model
This paper describes an improved algorithm for calculating the six parameters required by the California Energy Commission (CEC) photovoltaic (PV) Calculator module model. Rebate applications in California require results from the CEC PV model, and thus depend on an up-to-date database of module characteristics. Currently, adding new modules to the database requires calculating operational coefficients using a general purpose equation solver - a cumbersome process for the 300+ modules added on average every month. The combination of empirical regressions and heuristic methods presented herein achieve automated convergence for 99.87% of the 5487 modules in the CEC database and greatly enhance the accuracy and efficiency by which new modules can be characterized and approved for use. The added robustness also permits general purpose use of the CEC/6 parameter module model by modelers and system analysts when standard module specifications are known, even if the module does not exist in a preprocessed database.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1043759
- Report Number(s):
- NREL/JA-6A20-52571; TRN: US201213%%442
- Journal Information:
- Journal of Solar Energy Engineering, Vol. 134, Issue 2; Conference: Journal of Solar Energy Engineering; Related Information: Article No. 021011
- Country of Publication:
- United States
- Language:
- English
Improvement and validation of a model for photovoltaic array performance
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journal | January 2006 |
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