Sejak Pemerintah memberlakukan Danau Toba sebagai Kawasan Strategis Nasional (KSN), pen-ingkatan kebutuhan listrik yang berasal dari rumah tangga, komersil, publik dan industri harus diselaraskan dengan ketersediaan listrik yang mencukupi. Kekurangan dari ketersediaan listrik akan men-jadi kendala ataupun merugikan masyarakat sekitar Danau Toba baikpun dari Pemerintahan itu sendiri. Prakiraan Kebutuhan Listrik Kabupaten Simalungun yang efisien untuk tahun 2018 - 2022 merupakan tujuan dari penelitian ini. Berdasarkan data PT. PLN (Persero) wilayah Sumatera Utara, area Kota Parapat Kabupaten Simalungun, total konsumsi energi listrik tahun 2017 telah mencapai 22.311.374 kWh. Kabu-paten Simalungun memiliki banyak potensi dari berbagai sektor, terutama pariwisatanya, terutama ada kawasan Danau Toba. Dari data diatas menuntut para pengembang usaha dan pemerintah untuk menjaga kontinuitas pasokan energi listrik. Permasalahan tentang listrik akan timbul bila terjadi ketidakseimbangan antara energi listrik yang dihasilkan dengan yang diminta oleh pelanggan. Dengan menggunakan metode ekonometrik yang memperhitungkan pengaruh Produk Domestik Regional Bruto (PDRB), kapasitas mam-pu, rasio elektrifikasi, dapat diketahui jumlah konsumsi energi listrik pada tahun yang akan datang. Ber-dasarkan hasil perhitungan peramalan beban listrik pada tahun 2022, jumlah konsumsi energi listrik telah mencapai 46.149.759,6069 KWh yang meningkat sekitar 106, 84 % dari tahun 2017 yang berasal dariem-pat jenis pelanggan, yaitu rumah tangga, komersil, publik dan industri.

Asset inventory management in SMP Negeri 3 Tanah Jawa, Simalungun Regency, still uses the Microsoft Excel application and manual recording. This causes the data collection to be complicated or difficult to manage because the recording is only done on paper and stored in a file cabinet so it is very difficult to see and report data that has been long. As a result, reporting of goods entering and leaving goods occurs an error and is late. This problem was overcome by designing web-based applications. Applications are built using the waterfall method, starting with data collection through observation and interviews, analyzing system requirements to be evaluated based on system testing. Through this application, the process of recording and reporting asset variation can be accessed easily and in an organized manner.

Problems during the learning process at SMK Negeri 1 Kabanjahe are students are less attentive and lack understanding in understanding computer subject, especially building LAN networks. Computer Subject is considered one of the most difficult materials to learn, however multimedia major that they choose should use a computer. therefore, relies on the problem, this research aims to improve the students learning outcome, students’ activities during use schoology, and responses of students when using schoology as an elearning method. Type of this research is Classroom Action Research and the subject of this research is students class X Multimedia SMK Negeri 1 Kabanjahe with 26 students as participants. For collecting data this research use observations of student activities, evaluation tests and questionnaires to student. Result shown that students' learning outcomes improved, as shown from percentage students who completed KKM (minimum competence) in first cycle by 30.80% increased to 85% in the second cycle. the percentage of activity in the first cycle by 51.44% increased to 73.08% in the second cycle and the response of the learners in the poll gave a positive response the average percentage was 77.18% and the negative response percentage was 22.82%

E-recruitment Information System that can produce prospective teachers who have high competence is aim of this research. In addition to making it easier for the selection committee to find the best teacher, another advantage is data transparency, so that the results of prospective teachers obtained will be fully objective and transparent. The development of systems with rapid application development (RAD) models was chosen in developing a system built consisting of 4 stages: 1) Phase Requirement Phase, 2) Phase User Design Phase, 3) Phase Construction Phase, 4) Phase Cutover Phase. System design stages are created using unified modelling language (UML), and system implementations are created using the CodeIgniter framework. With the implementation of e-recruitment information system using rapid application development (RAD) system development model can replace manual recruitment system and can be run in organized way.

Technology information using the internet can benefit educators and provide information to students to transfer knowledge has a very high potential. The purposes of these community service are: (1) to expand the insight, knowledge, and experience directly about the model of blended learning for teachers, especially teachers of Sma Katolik 1 Kabanjahe; (2) Teachers can use elearning moodle learning technology. The techniques that are planned to shape the motivation and participation of educators ranging from the benefits of blended learning, and the application of blended learning so that educators in directly implementing it in the classroom. The implementation method starts in a structured manner starting from the initial discussion about blended learning, taking the results of the initial questionnaire, then giving independent tasks to the teachers. This community service was attended by 12 teachers at SMA Katolik 1 Kabanjahe, Kab. Karo. North Sumatra. The important conclusion of this community service is the awareness and ability of educators in using information technology, especially blended learning can increase motivation to educators to provide maximum learning to learners.         Keywords: blended learning; moodle; teaching technologyAbstrak: Teknologi informasi dengan menggunakan internet dapat menguntungkan para pendidik dalam memberikan informasi kepada peserta didik. Pengetahuan tentang teknologi informasi mempunyai potensi yang sangat tinggi. Tujuan dari penulisan: (1) memperluas wawasan, pengetahuan dan pengalaman secara langsung tentang model pembelajaran blended learning untuk guru guru khususnya Guru SMA Katolik 1 Kabanjahe; (2) Guru–guru dapat menggunakan teknologi pembelajaran elearning moodle. Teknik yang direncanakan untuk membentuk motivasi dan partisipasi tenaga pendidik mulai dari keuntungan blended learning, dan pengaplikasian blended learning sehingga tenaga pendidik dalam langsung mengimplementasikannya di dalam kelas. Metode pelaksanaan dimulai secara terstruktur mulai dari diskusi awal tentang blended learning, mengambil hasil kuesioner awal, selanjutnya memberikan tugas mandiri kepada guru–guru. Pelaksanaan pengabdian kepada masyarakat ini diikuti oleh 12 guru di SMA Katolik 1 Kabanjahe, kab. Karo. Sumatera Utara. Kesimpulan penting dari pengabdian ini adalah adanya kesadaran dan kemampuan pendidik dalam menggunakan teknologi informasi khususnya blended learning dapat meningkatkan motivasi kepada tenaga pendidik untuk memberikan pembelajaran yang maksimal kepada peserta didik.Kata kunci: blended learning; moodle; teknologi pembelajaran