New and renewable energy is one of the hot issues discussed by various energy experts in many countries. As a country that has enormous renewable energy potential, Indonesia has not utilized it optimally. One of the reasons is the inadequate learning of new and renewable energy in schools and colleges. This article will discuss the design and implementation of a Trainer Kit for Hybrid On-Grid Solar Power Generation System (TK-HOGS). With this Trainer Kit, it is hoped that vocational education students will increase their competence in new and renewable energy. This study uses a research and development approach that adopts the ADDIE model. The development stages include Analysis, Design, Development, Implementation, and Evaluation. The results showed: (1) The TK-HOGS can produce an average power of 22.74 Watt with an estimated electrical energy of 136 WH and (2) Media experts and electric power engineers stated that this TK-HOGS is “Very Good” and very suitable to be used to help lecturers in carrying out learning.

Air Conditioning (AC) system is one form of energy consumption which heavily loads the total energy usage in a building. It is essential to find relation between power used by AC to design factor of a building. Numerous countries have been using Overall Thermal Transfer Value (OTTV) as consideration in designing energy efficient buildings. Indonesia even regulated it on SNI 03-6389 2011 on energy conservation of building envelopes. In this paper, we will discuss how OTTV derived from façade measurements and find its correlation to power of those air conditioners consumed.

Abstract--The problem in this research is how the implementation of vocational guidance in Vocational High School (VHS), carrying capacity and constraints on the implementation of Vocational guidance, and how its development strategy. The study was conducted with the CIPP model of evaluation research approach, the method of data collection by observation and indepth interviews. Analysis of data using qualitative descriptive approach. The results of the study concluded that: 1) the implementation of the aspects context vocational guidance is included in the category enough, the input aspect is included in the good category, the process aspects included in the poor category, and the products aspects are included in the medium category. 2) Carrying capacity of the principal in the implementation of vocational guidance the availability of human resources, the response of students and parents were positive, while the main constraint is the ability to the management and content of vocational guidance services that have not been feasible. 3) Strategies undertook for the implementation of vocational guidance in vocational future for the better vocational guidance necessary to develop a model that fits the needs of the school and can be applied appropriately.

The Faculty of Engineering, Universitas Negeri Yogyakarta (UNY), as one of the educational institutions in Engineering, still uses electrical energy from PT PLN, mainly generated from steam and gas power plants. Dependence on fossil energy can be reduced by utilizing renewable power plants, both solar and wind. For this reason, it is necessary to study the use of a Smart Grid system that can regulate electricity needs by optimizing renewable power plants. The Smart Grid components consist of solar power plants, wind power plants, batteries, inverters, and grid power sources from PLN integrated into the Smart grid system. We have designed the Smart Grid system through field observations and data processing with the HOMER Pro software to obtain an optimal hybrid power generation system and wind turbine. The study results indicate that the Faculty of Engineering, UNY has excellent potential to develop smart grids. The potential for solar energy is 418.393 kWh/year, and wind energy is 2.78 kWh/year. The Smart grid system is sufficient to meet the electricity consumption of only 205.5 kWh/year.

Abstract-Navigation system of the mobile robot movement is a basic problem of a mobile robot control system. We must be able to establish and control the movement of the mobile robot fit with what we want and can avoid obstacles or barriers that hinder direction of motion of the mobile robot. In this study attempted to develop a mobile robot navigation system using Bluetooth and Android smartphone. Android GUI system was developed using the facilities of online programming through site remotexy.com. Robots were developed based on Arduino UNO, 2 dc motors with L298N driver and HC05 Bluetooth communication system. Results from the trial showed that the GUI navigation system can be work properly control mobile robot movement and the range of a Bluetooth-based control reaches a maximum distance of 10.5 meters.