Vol 7, No 2 (2016) > Mechanical Engineering >

Electrical Rating of Concentrated Photovoltaic (CPV) Systems: Long-Term Performance Analysis and Comparison to Conventional PV Systems

Muhammad Burhan, Chua Kian Jon Ernest, Ng Kim Choon

 

Abstract:

The dynamic nature of
meteorological data and the commercial availability of diverse photovoltaic
systems, ranging from single-junction silicon-based PV panels to concentrated
photovoltaic (CPV) systems utilizing multi-junction solar cells and a two-axis
solar tracker, demand a simple but accurate methodology for energy planners and
PV system designers to understand the economic feasibility of photovoltaic or
renewable energy systems. In this paper, an electrical rating methodology is
proposed that provides a common playing field for planners, consumers and PV
manufacturers to evaluate the long-term performance of photovoltaic systems, as
long-term electricity rating is deemed to be a quick and accurate method to
evaluate economic viability and determine plant sizes and photovoltaic system
power production. A long-term performance analysis based on monthly and
electrical ratings (in kWh/m2/year) of two developed CPV prototypes,
the Cassegrain mini dish and Fresnel lens CPVs with triple-junction solar cells
operating under the meteorological conditions of Singapore, is presented in
this paper. Performances are compared to other conventional photovoltaic
systems.
Keywords: CPV; Electrical rating; Long-term performance; MJC; Solar tracker

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