No abstract

The microgrid consists of at least one energy source that is connected to a load in a relatively small area. In practice, microgrid are divided into two types, off-grid systems or often said to be standalone systems and on-grid systems that are connected to utility networks. The use of renewable energy sources, such as photovoltaic, has become an alternative energy for the problem of electricity energy deficits. This research examines the possibility of saving power consumption from the network using a grid-tie inverter (GTI) power converter in a microgrid configuration so synchronization can be made between renewable energy systems and utility networks. The integration of photovoltaic energy resources with the grid system will increase the value of electricity capacity while reducing the use of fossil fuels, as well as a positive impact where the use of renewable energy can reduce energy use and bills to be paid. Integration of grid tie testing carried out without a load can convert the power generated by almost 90% distributed in the utility network, while testing with a load using a grid tie system, can save power up to 70% of the energy supplied by the utility network.

The most severe asphalt-covered damage is observed in the Indrapuri Sub-district, which has 33 regency roads with total lengths of 105.90 km. In this location, 18 segments at 47.30 km (44.66%) are found to have severe damage. Based on the limited budget of Aceh Besar Regency Government, the determination of the reconstruction priorities for damaged roads in Indrapuri is very necessary. Therefore, this study aims to determine the dominant criteria that should be considered in road reconstruction. Also, it aims to determine the priority order of road reconstruction in the Indrapuri Sub-District. In this study, a quantitative method was used through a well-structured questionnaire, where 6 people were selected through a purposive sampling technique, with considerations based on related stakeholders and policymakers. The criteria reviewed were road conditions, land use, accessibility, population, as well as social, government, and economic facilities, respectively. Besides, the alternatives subsequently reviewed were 18 severely damaged roads, with the data analysis technique using AMK. The results showed that the dominant criterion that should be considered in the reconstruction process was the road condition, which was observed at a weight of 0.35. in Indrapuri Sub-district, the main priority of reconstruction focused on the criteria of road conditions, land use, accessibility, population, as well as social, government, and economic facilities, respectively. This indicated that Simpang Mesjid Indrapuri–Krueng Lamkareung Road, Grot Meunasah Manyang–Grot Blang Road, and Lheu–Lamlubok Road were priorities 1, 2, and 3, with alternative performances of 6.33, 4.52, and 4.04, respectively.

Electricity is very useful for human life. However, if an error in use results in a danger to the safety of humans, livestock and property. Sometimes electricity is also used for special purposes for which there are no guidelines, this will be very risky to safety. As in the case that occurred recently in the Pidie Resort Police area, the Head of the Pidie Resort Police assigned his members for the benefit of the police service in the context of the task of carrying out an examination of electrical experts to obtain information regarding the discovery of a body in the mountain river of Gampong Lhok Broh, Meureudu District, District Pidie Jaya. The expected objectives of this activity are; So that participants can understand the benefits of electrical energy and the basic principles, operation, and maintenance of electrical equipment, Provide participants with knowledge (in general) about how to work and maintain electrical equipment that may be designed and used in a community environment, Demonstrate directly the dangers of some related electrical equipment cases currently being handled by the police. This activity was carried out from October 1 to November 30 2019 and consisted of 3 stages namely; Preparation, Execution, and Compilation of Reports. Based on inspections and field trials in two places, the following conclusions can be drawn; Electric current is dangerous for the human body depending on the amount of current and duration. The effect of electric current on humans starts with tingling/numbness to effect the heart which can cause death. Water is a conductor that can carry electric current properly. The safe voltage limit for humans is 50 Volt AC assuming the human body is 1000 Ohm resistant, the safe current limit for humans is 30 mA. The dedicated team also as electrical experts discusses scientific about matters related to electrical hazards and their effects on the human body.

The research aims to get the best slope of the solar module to be placed on the roof of the building. This research will look at the performance of solar panels with varying slopes from various types in the city of Banda Aceh. The method used in this research is data collection by looking at the most significant output power from various slopes and comparing it with calculating the output power. The data from each month will also be compared so that the cross panel and the best tilt angle will be. From the research that has been done, it is found that in December and January, with the sun's declination angle of 23 ° and 20 ° North Latitude, the orientation of the solar panel installation is facing south with the best tilt angle of the solar panel is 20 ° -25 ° in December and 18 ° -24 ° in January. In July, the sun's declination is 21.2 ° North Latitude. The orientation of the solar panel installation is facing North, with the best tilt angle of the solar panel being 15 °.