Abstract:

Generating equipment availability hours is the core performance indicator for the operation diagnosis of a power plant. It is subjected to the impact of many variables. Besides the natural conditions and the curtailment of PVbased power generation, equipment performance and O&M also impacts the power plant availability hours. PV power generation industry needs to address such impact through its own improvements. This paper provides followup review on a specific PV power plant. The impact of battery attenuation rate to its availability hours is measured: namely attenuation rate up by 1%, availability hours down by 12 hours. This poses new demands for technology innovation on both the PV equipment manufacturers and the integrated development between upstream and downstream PV power plants.

Key words:

solar power；photovoltaic(PV) power generation, PV power station, attenuation rate；availability hours