The Industrial Revolution 4.0 and society 5.0 encourage disruption not only from technology and business models but also from climate change. The Growth of energy demand is one of the triggers for increasing greenhouse gas emissions. Proper management of forests and plantations can have a multiplier effect, namely conservation, protection of life support systems, and sources of biomass fuel. The International Trade Center shows that Vietnam and Indonesia are the main producers of the Southeast Asia region with an export value of US $ 309,220,000 and US $ 26,764,000 respectively in 2019. Meanwhile, Denmark is the world's largest importer with an import value of US $ 542,474. .000. South Korea is the largest importer in Asia with a value of US $ 362,283 in 2019. Lampung Province has a forest area with an area of 1,004,735 hectares of the 94.1 forested land area in Indonesia. Increasing the function of some forests in Lampung to become Energy Plantation Forests can increase the production of wood pellets. The growth of biomass wood pellet production will increase the export balance of Lampung Province. The political will of European Union countries, South Korea and Japan in increasing the use of wood pellets as a fuel for electricity generation is an export opportunity for wood pellets in Lampung Province. The global Wood Pellet market with a value of US $ 5324 million in 2020 is expected to reach US $ 8095.4 million by the end of 2026, growing at a CAGR (Compound Annual Growth Rate) of 6.1% during 2021-2026. Gorontalo Province, with a planted concession area of 15 thousand hectares, can produce wood pellets of 36 thousand tons/year. 20% percent of Lampung Forest is increased to THE potential to produce 40 thousand tons/year.

Purpose: This study aimed to increase the knowledge and ability of Koperasi Melati Jaya's waste management. Waste management capabilities can reduce the volume of waste to the landfill. Method: The program began the dissemination of commitment to waste management to contribute to SDGs achievement, assistance in manufacturing verticulture, hydroponics, eco-bricks, garden architects, and utilizing waste. Evaluation was carried out to improve the waste management program. Results: Through this program, more than 70% of the cooperative's members manage waste using the 7R principle. Knowledge, attitudes, and abilities in recycling waste into hydroponics, verticulture, and eco-bricks have increased. The conversion of waste into valuable products indirectly contributes to reducing the volume of waste from TPA Bakung. The income of cooperative members and the fact that fresh vegetables in the city of Bandar Lampung have increased. Conclusions: The consistency program can bring Sukamenanti Baru close to zero waste so that it becomes a livable village. Indirectly, it supports the achievement of SDGs in Bandar Lampung City. Keywords: Garbage, Women, Cooperatives, SDGs

A flat-plate thermal collector combined with a PV panel also called a PV/T collector is a device that converts solar irradiation into thermal energy and electrical energy simultaneously. The unused thermal energy of the PV/T collector is absorbed by the flat-plate thermal collector. This may then contribute directly to an enhancement of the electrical efficiency of the PV/T collector. In the present study, the effect of geometry and Reynolds Number on the thermal performance of flat-plate thermal collectors is numerically investigated. Thereafter, CFD simulation is then implemented to characterize the thermal performance in terms of absorber temperature and convection heat transfer coefficient. To disturb the fluid flow pattern in this work the 45o inclined fins are attached underneath the surface of the collector model and they act as an absorber. Monthly average weather data of inlet fluid temperature and ambient temperature as well as solar irradiation level implemented in this study were obtained from the Meteorological, Climatological and Geophysical Agency of Bandarlampung regency. Several different cases have been considered by varying the fin height from 20 to 80 mm, fin thickness from 1 to 4 mm, and Reynolds number from 1500 to 6000. The results show that increasing the fin geometry (the fin thickness and fin height) and Reynolds Number reduce the flat-plate surface temperature due to the more conductive and convective heat transfer process. However, in terms of the convective heat transfer coefficient parameter, the Reynolds Number implemented has a dominant effect compared to the fin geometry. Moreover, by increasing Reynolds Number by four times, there is a decrease in the mean surface temperature by 26% and an increase in the mean convective heat transfer coefficient of 146% compared to the initial conditions

COVID-19 is a virus that can spread through objects and depending on environmental conditions. It can last for several hours without destroying structures or disintegrating. Due to the COVID-19 pandemic, people were restricted from going outside to buy essential goods. Based on these conditions, it is necessary to design an IoT-based virus-safe package receipt box that is intuitive and comfortable for users to use, whether sending or receiving packages. People can control the system via remote control. Sterilization is carried out intelligently by considering the packet received. Design and construction of Internet of Things Ultraviolet Sterilizer Receiver Box use the Design Science Research Method. The methods consist of six stages: identify problem motivate, define the objective of a solution, design development, demonstration, evaluation, and communication. There are three parts of the system: sterilizer receiver box, mobile application, and Internet of Things. The system successfully passes the five testing scenarios: package received detection, package retrieved detection, ultraviolet irradiation, data service, and locking. The IoT-based virus-safe package receipt box can help maintain public health by preventing the COVID-19 virus with ultraviolet sterilization and supporting a modern lifestyle where people who work when the package arrives do not have to worry about the packages arriving.