Evaluation of Technological Pedagogical Content Knowledge (TPACK) Teachers of SMK Negeri 6 Malang (Case Study of Electrical Power Installation Engineering and Autotronic Engineering)

This study aims to determine the level of Technological Pedagogical Content Knowledge (TPACK) proficiency. This type of research is descriptive quantitative research. The instruments used to measure TPACK are in the form of questionnaires and interview questionnaires using a Likert scale with 5 scales. The samples of this study were Electrical Power Installation Engineering (EPIE) teachers at SMK N 6 Malang, totaling 7 people and Autotronic Engineering (AE) teachers at SMK N 6 Malang totaling 6 people. The results of the study are EPIE teachers' TK skills are in very good criteria with an average of 68, while AE teachers' kindergarten skills are in good criteria with an average of 53. EPIE teachers' PK skills are in good criteria with average - an average of 67.3, while the PK skills of AE teachers are in good criteria with an average of 75.2. EPIE teachers' CK skills are in very good criteria with an average of 31, while the CK skills of AE teachers are in very good criteria good with an average of 31. EPIE teachers' TCK skills are in very good criteria with an average of 26, while AE teachers' TCK skills are in good criteria with an average of 22. EPIE teachers' PCK skills are at criteria very good with an average of 57, while the PCK skills of AE teachers are in very good criteria with an average of 56. EPIE teachers' TPK skills are in good criteria with an average of 26.6, while the TPK skills of AE teachers are at good criteria with an average of 26.8. EPIE teachers' TPACK skills are in good criteria with an average of 18.4, while AE teachers' TPACK skills are in good criteria with an average of 18.2.

Solar Power: Stellar Profit or Astronomic Cost? A Case Study of Photovoltaic Installations under Poland’s National Prosumer Policy in 2016–2020

In Poland, the development of photovoltaic (PV) installations is an important element in the development of the Renewable Energy Sources (RES) sector and supports the prosumer power industry. The purpose of the article is to present a case study of the PROSUMENT program. It analyzes the data available to date on the development of the PV market in Poland. Apart from the costs of installing the PV systems, the article analyzes the profitability of investment for different micro-power installation capacities. A calculation for micro-power installations subsidized under the PROSUMENT program for various PV capacities is presented, along with the actual amount of the subsidy. The adopted calculation methodology is a comparative verification analysis of the investment cost estimate for a for the two studied PV facilities, i.e., Micro-power installation 1 and Micro-power installation 2. The building’s annual energy demand was adopted at the same level for both examples, with fixed active energy and distribution fees. The study includes a cost estimate for installing the PV systems and the profitability of the investments for various micro-power installation capacities. The analysis of the subsidy under the PROSUMENT program demonstrated that, in the analyzed period of 2016–2020, the best results were achieved by investments with a capacity of 10 kWp. In terms of the net subsidy value, the best results ranged between 27.20 and 19.10% of the total investment costs. Development of the Polish prosumer power market requires building public awareness of prosumer power production as an opportunity for the growth of the Polish economy.

PENGARUH MODEL BELAJAR PROJECT BASED LEARNING (PJBL) TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN INSTALASI TENAGA LISTRIK SISWA XI DI SMK NEGERI 1 PERCUT SEI TUAN TA.2019/2020

This study aims to determine the effect of the project based learning (PJBL) learning model on the learning outcomes of electric power installation in class XI TITL at SMK. This study used a quasi-experimental method with a Posttest Only Control Group Design model. The number of research subjects was 62 students, consisting of 32 students of class XI TITL 1 as the experimental class and 32 students of class XI TITL 2 as the control class. The data collection technique used was a multiple choice written test which had been tested for validity, reliability, difficulty level, and differentiation power. The results showed that the learning outcomes of the project based learning model showed that the students' average score in the experimental class was 77.33 while the control class was 71.16. From the results of the calculation of the hypothesis test, it is obtained tcount 3.261 and ttable is 1.670, then tcount> ttable or 3.261> 1.670, so it can be concluded that the alternative hypothesis (Ha) in this study is accepted while rejecting the null hypothesis (Ho) in other words the learning outcomes of class XI students. Electrical Power Installation Techniques on the competence of understanding the installation and measurement of earth systems with a project based learning (PPA) learning model are higher than student learning outcomes using conventional learning models..Key Words: Project based learning model, learning outcomes AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran project based learning (PJBL) terhadap hasil belajar instalasi tenaga listrik kelas XI TITL di SMK. Penelitian ini menggunakan metode quasi eksperimen dengan model Posttes Only Control Group Design. Jumlah subjek penelitian 62 orang peserta didik, yang terdiri dari 32 peserta didik kelas XI TITL 1 sebagai kelas eksperimen dan 32 peserta didik kelas XI TITL 2 sebagai kelas kontrol. Teknik pengumpulan data yang digunakan adalah tes tertulis berbentuk pilihan ganda yang telah terlebih dahulu diuji Validitas,reliabilitas,tingkat kesukaran, dan daya beda. Hasil penelitian diketahui bahwa hasil belajar model belajar project based learning diperoleh nilai rata-rata siswa pada kelas eksperimen yaitu 77,33 sedangkan kelas kontrol 71,16. Dari hasil perhitungan uji hipotesis diperoleh thitung 3,261 dan ttabel adalah 1,670, maka thitung > ttabel atau 3,261 > 1,670, sehingga dapat disimpulkan bahwa hipotesis alternative (Ha) dalam penelitian ini diterima sekaligus menolak hipotesis nihil (Ho) dengan kata lain hasil belajar siswa kelas XI Teknik Instalasi Tenaga Listrik pada kompetensi memahami instalasi dan pengukuran sistem pembumian dengan model belajar project based learning (PJBL) lebih tinggi dari hasil belajar siswa dengan menggunakan model belajar konvensional. Kata Kunci: Model belajar project based learning, hasil belajar

Renewable Energy Production from Agricultural Waste and Hydrogen Battery Formation

In recent years, the growth of solar and wind power installation has not grown in par with its electrical grid integration. Hence this proposed work uses frictional Pyrolysis to enable this integration by converting electrical energy into mechanical work without any indication of excess heat requirement. The renewable energy that is in excess can be used in conversion of agricultural residue to biocoal. This is the basis of of renewable battery. In this work a case study is presented such that biomass characteristics are examined and further transformed to bio coal. Observations indicate that in the past decade there is a significant increase in wind power installation (258%) and the number of solar PVs installed have also accounted for 21,437 GWh. From the biomass initial stage, the total amount of energy produced lies within the range 78% to 89%. This methodology of using renewable battery ensures that the environment state cleaner and carbon sequestration and also be implemented in agricultural development.

PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS LIFE SKILL UNTUK SISWA SMK JURUSAN TEKNIK INSTALASI TENAGA LISTRIK

Abstrak: Media pembelajaran menjadi pilihan untuk menunjang proses belajar yang menyenangkan dan menarik bagi siswa dan juga memperkuat motivasi, serta untuk menanamkan pemahaman pada siswa tentang materi yang diajarkan. Tujuan penelitian ini adalah mengembangkan media pembelajaran interaktif berbasis Life Skill untuk siswa SMK Jurusan Teknik Instalasi Tenaga Listrik. Penelitian ini menggunakan model penelitian dan pengembangan. Prosedur pengembangan media pembelajaran yang digunakan dalam penelitian ini mengadaptasi dari model ADDIE. Selanjutnya dilakukan validasi pada media yang telah dirancang. hasil penelitian ini yaitu pengembangan media pembelajaran berada dalam kategori Sangat Baik, berdasarkan penilaian dan validasi dari ahli media, ahli materi dan respon siswa. Hasil validasi dari ahli Media memperoleh rata-rata 93,33%, ahli materi 88,33% dan respon siswa sebagai pengguna adalah 90%. Dengan hasil ini, media pembelajaran yang dikembangkan dapat diterapkan dalam proses belajar mengajar sesuai dengan materi dan kompetensi yang akan dicapai. Kata Kunci: Media Pembelajaran, Life Skill, SMK, Teknik Instalasi Tenaga Listrik. Abstract: Learning media is an option to support a fun and interesting learning process for students and also strengthen motivation, and to instill understanding in students about the material being taught. The purpose of this study was to develop Life Skill-based interactive learning media for Vocational High School Electrical Power Installation Engineering students. This study uses a research and development model. The learning media development procedure used in this study adapted from the ADDIE model. Furthermore, validation is carried out on the media that has been designed. The results of this study are the development of learning media in the Very Good category, based on the assessment and validation of media experts, material experts and student responses. The results of the validation of the media expert obtained an average of 93.33%, the material expert was 88.33% and the student response as a user was 90%. With these results, the learning media developed can be applied in the teaching and learning process in accordance with the material and competencies to be achieved.. Keywords: Learning Media, Life Skills, Vocational High School, Electrical Power Installation Engineering.