A Novel PV Size Selection for Time of Use Tariff for Residence in Phayao Province, Thailand


  • Songpol Pudwong
  • Bunyawat Vichanpol
  • Nopparat Katekhow


Photovoltaic, Time of Use Tariff, Residential


This research aims to study the photovoltaic (PV) size for residence that consider to take an advantage from the electricity cost of time of use (TOU) tariff. The study is conducted by considering the 2015 tariff rate of Provincial Electricity Authority (PEA). The research is studied only residence with electricity consumption over 150 kWh per month and at voltage level lower than 22 kV. In the study, the electricity generated from PV is used in peak time periods only. As the simulation results, the minimum and maximum PV size selection chart is demonstrated. The minimum and maximum PV size depend on the total electricity consumption before PV installation (kWhT,E) and the existing ratio of electricity consumption in peak time ( ). If the electricity consumption per month and the ratio of electricity consumption in  are increasingly high, the maximum size of the PV installation will be accordingly enlarged as well. In addition, the results showed that the customers who use the total electricity consumption less than 500 units per month and the ratio of electricity consumption in peak time more than 0.8 will not benefit to the TOU tariff.


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How to Cite

Pudwong, S., Vichanpol, B., & Katekhow, N. (2019). A Novel PV Size Selection for Time of Use Tariff for Residence in Phayao Province, Thailand. Journal of Renewable Energy and Smart Grid Technology, 14(1). Retrieved from https://ph01.tci-thaijo.org/index.php/RAST/article/view/170837