Short Term Analysis of PV System Performance in Different Areas of Thailand

Sathiracheewin, Supalak; Prommaneewat, K.

doi:10.1109/ecti-con47248.2019.8955369

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Due to the radiation and ambient temperature are different in each area. This paper is an extension of work originally presented in 16 th ECTI-CON [1]. This paper examines the efficiency of the PV system in northeastern Thailand.…”

Section: Introductionmentioning

confidence: 97%

Performance Analysis of Grid-Connected PV Rooftop, at Sakon Nakhon Province, Thailand

Sathiracheewin¹,

Sripadungtham²,

Kamuang³

2020

Adv. sci. technol. eng. syst. j.

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The performance ratio (PR) based on IEC 61724 standard is calculated under the influence of seasonal variations and the capability of the system. On the other hand, The National Renewable Energy Laboratory (NREL) of the U.S. Department of Energy proposed the weather-corrected performance ratio (PRcorr). This PRcorr index calculates the performance of the PV system which has taken the weather variations that influence the cell temperature into account. Both techniques were compared with the simulation program to analyze the PR index according to system conditions. The study site is the on-grid PV rooftop at Kasetsart University Chalermphakiat Sakon Nakhon (CSC). The PV panel is oriented to the southwest, 215 degrees azimuth. The angle of the inclination of the panel is 17 degrees. The result shows the trend of monthly PRcorr with little variations. At the same time, the PR value over the year has a lot of variations. The variation of PRcorr and PR is 2.39 and 5.07, respectively. PRcorr has low variability due to the correction of weather factors. The average cell temperature is an important variable. To calculate the average temperature of the panels, one year of data is needed to filter out distorted information. The system available condition is an important factor for the on-grid PV system at low voltage.

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Section: Introductionmentioning

confidence: 97%

Performance Analysis of Grid-Connected PV Rooftop, at Sakon Nakhon Province, Thailand

Sathiracheewin¹,

Sripadungtham²,

Kamuang³

2020

Adv. sci. technol. eng. syst. j.

Self Cite

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Annual Degradation Rate Analysis of Mono-Si Photovoltaics Systems in Thailand Using the Mixed Effects Method

Asdornwised

Chaitusaney

et al. 2021

IEEE Access

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The annual degradation rate (DR) of photovoltaics (PV) system is a critical factor to evaluate the energy performance and the levelized cost of electricity (LCOE) during its operation lifetime. However, the DR of a particular system strongly depends on the technical configuration such as PV module and array, inverter configuration, and also the climatic conditions. Therefore, a real operation dataset of DR is necessary to PV engineer in order to estimate energy performance and the LCOE for a particular system. This article presents the annual DR for a group of PV systems in Bangkok, Thailand which share the same monocrystalline silicon solar cell and inverter brand, over a four-year period. Instead of using simple linear regression, we apply the linear mixed effects method to estimate the DR value, which is suitable to formula a time-series data. The annual DR was found about 2.7% per year, with the 95% confidence interval from 0.7% to 4.6% per year. Hence, the operation lifetime of PV system until it reaches 80% of their initial energy conversion performance is about 7 years, with the 95% confidence interval from 4 years to 28 years. The resulting DR is informative and useful for further study on PV system performance and cost of investment in tropical region. Furthermore, we are the first group in Thailand to estimate the DR of PV station at system scale based on the mixed effects method. Finally, our study has enriched the knowledge about the operation of monocrystalline silicon (Mono-Si) PV station in real operation condition. INDEX TERMSDegradation rate, Linear decline model, Levelized cost of electricity (LCOE), Mixed effects model (MEM), Mono-Si PV station.

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Short Term Analysis of PV System Performance in Different Areas of Thailand

Cited by 2 publications

References 3 publications

Performance Analysis of Grid-Connected PV Rooftop, at Sakon Nakhon Province, Thailand

Performance Analysis of Grid-Connected PV Rooftop, at Sakon Nakhon Province, Thailand

Annual Degradation Rate Analysis of Mono-Si Photovoltaics Systems in Thailand Using the Mixed Effects Method

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