Kebutuhan pengisian daya smartphone di area wisata perlu didukung oleh fasilitas yang tidak hanya menyediakan sumber energi, tetapi juga memberikan keamanan terhadap perangkat pengguna. Penelitian ini bertujuan untuk merancang dan membangun Smart Locker Charging Station berbasis panel surya yang dilengkapi sistem autentikasi face recognition menggunakan ESP32-CAM. Sistem menggunakan panel surya sebagai sumber energi, baterai sebagai media penyimpanan, serta solenoid lock sebagai mekanisme pengamanan loker. Metode penelitian menggunakan eksperimen dengan melakukan pengujian terhadap karakteristik sumber dan beban sistem. Pengujian dilakukan pada tiga kondisi, yaitu charging baterai tanpa beban sistem, charging baterai dengan beban sistem, dan discharging baterai ketika sistem beroperasi tanpa suplai langsung dari panel surya. Parameter yang diamati meliputi iradiasi matahari, tegangan, arus, dan daya panel serta tegangan, arus, dan daya beban. Hasil penelitian menunjukkan bahwa sistem berhasil direalisasikan dalam bentuk prototipe dan mampu menjalankan fungsi autentikasi wajah serta pengisian daya smartphone. Pada pengujian berbeban, panel surya menghasilkan daya rata-rata sebesar 24,705 W, sedangkan daya beban sistem sebesar 10,990 W, sehingga terdapat selisih daya rata-rata sebesar 13,715 W. Hasil tersebut menunjukkan bahwa panel surya mampu menyuplai kebutuhan daya beban sistem pada kondisi pengujian.

The need for smartphone charging facilities in tourist areas requires a system that not only provides an energy source but also ensures the security of users' devices. This study aims to design and develop a solar panel-based Smart Locker Charging Station equipped with a face recognition authentication system using ESP32-CAM. The system utilizes a solar panel as the primary energy source, a battery as an energy storage medium, and a solenoid lock as the locker security mechanism. An experimental method was applied to evaluate the characteristics of the system's energy source and load. Three testing conditions were conducted, namely battery charging without system load, battery charging with system load, and battery discharging while the system operated without direct supply from the solar panel. The observed parameters included solar irradiance, panel voltage, current, and power, as well as load voltage, current, and power. The results showed that the system was successfully implemented as a prototype and was capable of performing face authentication and smartphone charging functions. During the loaded charging test, the solar panel produced an average power of 24.705 W, while the system load consumed an average power of 10.990 W, resulting in an average power difference of 13.715 W. These results indicate that the solar panel was capable of supplying the system load under the tested conditions.