Indonesia membutuhkan energi listrik yang tinggi tetapi bahan bakar fosil sudah semakin sedikit. Pemerintah mengatasi kondisi ini tersebut dengan kebijakan energi nasional yang bertujuan mengurangi penggunaan energi fosil dan meningkatkan peran Energi Baru dan Terbarukan. Salah satu sumber energi terbarukan adalah energi surya. Universitas Udayana memiliki potensi untuk mengembangkan PLTS di Rumah Sakit Perguruan Tinggi Negeri Universitas Udayana. Dalam paper ini, dilakukan pengkajian pengembangan PLTS pada RSPTN Universitas Udayana. Didapatkan bahwa RSPTN Universitas Udayana berpotensi menghasilkan daya listrik sebesar 835,560 Wp. PLTS pada atap Gedung #1 menghasilkan 142,560 Wp yang mampu mensuplai 31.32 % dari total daya jika Gedung #1 sudah beroperasi penuh. PLTS juga menghasilkan energi sebesar 166,407 kWh per tahun yang mampu mensuplai 22.6 % dari konsumsi energi listrik Gedung #1. PLTS pada atap Gedung #1 dan atap parkir menghasilkan 226,710 Wp yang mampu mensulpai 46.98 % dari total daya jika Gedung #1 sudah beroperasi penuh. PLTS juga menghasilkan energi sebesar 249,610 kWh per tahun yang mampu mensuplai 32.8 % dari konsumsi energi listrik Gedung. Kata Kunci— energi terbarukan, listrik matahari, PLTS, rooftop PV, fotovoltaik, atap gedung, produki energi, PVWatts
Nowadays electric vehicles begin to grow and are supported by improved batterytechnology such as smaller size and capable of storing large amounts of energy. One type ofsimple electric vehicle is an electric bicycle. This paper reviews the availability of batteries andbattery chargers for electric bicycles in Indonesia. The review includes a discussion on thetechnical specifications, manufacturer, the vendor of the battery, and battery charger. Thesurvey produced a data consists of 117 batteries and 54 chargers and then processed to obtainstatus on the availability in the domestic market. The information regarding the availability ofbatteries and battery chargers for electric bicycles is expected to be used as a quick referencefor the community in choosing batteries and battery chargers for electric bicycles and canprovide an overview to stakeholders about the status of batteries and chargers in conductingresearch and development of batteries and charging equipment for electric vehicles.
Salah satu metode untuk mengolah limbah beracun rumah sakit adalah dengan incinerator. Incinerator membakar limbah medis padat rumah sakit pada suhu tinggi. Banyak rumah sakit harus mengangkut limbah beracunnya ke lokasi pihak ketiga yang lokasinya diluar Bali. Di Bali, ada 62 rumah sakit dengan 6.195 kamar inap dengan 5.584.310 kunjungan pasien pertahun sehingga menghasilkan sejumlah besar limbah beracun. Rumah sakit di Bali harus harus mengirim limbahnya ke pulau Jawa menyebabkan biaya yang mahal dan masalah dalam pengangkutannya. Salah satu solusinya adalah mengembangkan incinerator skala kecil di dekat lokasi rumah sakit. Jurnal ini membahas pengembangan incinerator skala kecil di kota Denpasar Bali yang mencakup investasi, metric kinerja, dan kelayakan ekonomis. Proyek ini didanai oleh bantuan internasional dan saat ini merupakan satu-satu nya incinerator yang ada di rumah sakit di Bali. Paper ini membahas bagaiman pengolahan limbah di RSUD Wangaya dan khususnya penggunaan Incinerator. Pembahsan akan meliputi pemaparan pengelolaan limbah di RSUD Wangaya, langkah-langkah pengembangan incinerator, unjuk kerja incinerator, dan analisa investasi. Kata Kunci: Rumah sakit, pengolahan limbah medis, limbah beracun, incinerator, analisa ekonomi, NPV, payback period, konservasi energi.
Arduino microcontrollers have been widely used in research and society. The Arduino isequipped with one or more physical sensors to convert physical quantities into electrical signalsthat can be processed by the microcontroller. This paper reviews sensors, types of Arduino, andtheir application as a monitoring system. Data were obtained from platforms discussing onlineArduino projects, scientific articles, electronic/micro-electronic component manufacturer sites,and other reliable sources. The results show that the sensors that are commonly used includetemperature and humidity sensors DHT11, DHT22, Thermistor and LM35, limit switch touchsensors, proximity sensors HC-SR04, and Paralax PIR, gas sensors MQ2, MQ3, MQ5, MQ6,MQ7, MQ8, and MQ135 correspond to detected gases, ADXL345 and A3144 acceleration andmagnet sensors, TCS3200 and TCS 34752 color sensors, KY-026 and Robotdyn IR firesensors, KY-022 and KY-005 Infrared sensors, LDR and TSL2561 light sensors, voltage-currentsensors ACS712 and PZEM-004T, and heart rate sensors KY-039 and MAX30102. While themicrocontrollers that are often used include Arduino Uno, Arduino Nano, Arduino Mega, andother microcontrollers. Applications that have been developed include applications in the fieldsof health, agriculture and farm, creation of robots, security to vehicles.
The development of electric vehicles in Indonesia started after the issuance ofPresidential Decree 55/2019 about battery-based eletric vehicles. The development of electricvehicles must be supported with the charging infrastructure so users do not experienceproblems in charging the vehicles and therefore more people will switch to electric vehicle. Thispaper discusses the current status of charging infrastructure for electric vehicle in Indonesia.Currently, there are several type of vehicle charging facilites consist of 7.000 public electriccharging station or SPLU, 97 public electric vehicle charging station or SPKLU, 9 public electricvehicle battery exchange station or SPBKLU distributed across Sumatra, Java, Bali, NTB,Sulawsi and Kalimantan. In the case of Bali, there are 166 of SPLU, 5 of SPKLU, and there isno SPBKLU yet. The total accumulative energy consumed through the charging stations in Baliis 169.481 kWh. The figure is low due to lack of information about the charging station and thefact that the number of electric vehicles in Bali is still low.
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