Along with technological advances it is estimated that the GRDP of Kulon Progo Regency increases annually by 7.6% and the population growth of Kulon Progo regency increases annually by 0.9%. However, after assuming with Muara Bungo Regency as reference of GRDP growth and Population of Kulon Progo Regency due to influence of NYIA in 2019, the population growth every year is 15,78%. While GRDP in 2018 until 2019 equals to 82,91% and next year equals to 7,6 %. Load forecasting the burden for the next 10 years by using multiple linear regression affected by NYIA in 2019 the loading of the 150 KV wates substation is only up to 2021 for the transformer I of 24.83 MW and the transformer II 55.40 MW. So it is estimated that for 2022, transformer I and transformer II Substation of 150 KV Wates are no longer able to serve the loading. Thus, in 2021 a feeder shift and uprating transformer I needs to beconducted in 2024 transformer III is added and reshifting feeder from transformer I & II to transformer III.