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This study aims to analyze the feasibility of implementing Solar-Powered Street Lighting (PJUTS) as an alternative lighting solution in Campus C of UNINDRA PGRI. The background of this research is driven by the high operational electricity costs of the existing conventional street lighting system and the need to transition toward clean energy. The analysis methods include a technical comparison of off-grid systems, an economic evaluation based on cost savings, and an assessment of environmental impacts. The technical analysis indicates that PJUTS is highly feasible due to its ability to operate independently without reliance on the national electricity grid, thereby ensuring lighting continuity during power outages. From an economic perspective, although the initial investment (CAPEX) is higher than that of conventional street lighting, the project is considered feasible as it eliminates monthly electricity bills permanently, resulting in long-term budget efficiency and financial benefits. The Payback Period analysis shows that the initial investment can be recovered through cumulative operational cost savings. Environmentally, the implementation of PJUTS significantly contributes to carbon emission reduction and supports the Green Campus vision through the utilization of renewable energy. Overall, the transformation of the existing street lighting system into PJUTS represents a strategic and feasible initiative that fulfills effectiveness, efficiency, and sustainability criteria.

The maintenance of non-aviation defense equipment (main weapon system) is a critical aspect in maintaining operational readiness. However, the Maintenance, Repair, and Overhaul (MRO) system in Indonesia still faces limitations due to manual reporting, inefficiency in spare parts management, and the lack of integration of the Life Cycle Cost (LCC) approach. This study aims to design and develop the Integrated Cavalry Monitoring and Maintenance System (ICMMS) based on a web application that integrates sensors, real-time data analytics, and LCC calculation. The prototyping method was used, involving design, development, integration, and testing phases on the Maung Tactical Vehicle and Anoa Armoured Personnel Carrier at PT Pindad. The results of the prototype implementation showed a significant increase in maintenance efficiency: damage reporting time decreased from ±3 hours to ±1 minute, critical component identification became 95% faster, and maintenance scheduling shifted from reactive to predictive. Additionally, the integration of the LCC algorithm allows for more accurate maintenance cost estimation, supporting technical and strategic decision-making. This study demonstrates that ICMMS based on LCC can be an innovative digital solution to enhance MRO effectiveness and operational readiness of non-aviation defense vehicles in Indonesia. It is expected that this system will improve the resilience and cost-effectiveness of managing Indonesia’s military vehicle fleet.

This study aims to analyze the maintenance strategy of railway lines in West Sumatra using the Life Cycle Cost (LCC) approach to determine the most economically efficient and sustainable maintenance option. The main issues raised are the high cost of reactive maintenance and the risk of operational disruption due to track damage. The research method involved collecting construction, operational, and maintenance cost data from railway operators, as well as LCC-based scenario simulations to compare preventive and reactive maintenance strategies. The results of the analysis show that the preventive maintenance strategy results in lower total life cycle costs, compared to the reactive strategy. In addition, the preventive strategy also supports operational sustainability by minimizing the risk of service disruption and improving user safety. SWOT analysis shows that LCC implementation has great potential to improve budget efficiency and support local economic growth, although challenges such as data limitations and natural disaster risks need to be mitigated. This research concludes that an LCC-based approach can be the basis for designing more effective, efficient and sustainable railway maintenance policies. Recommendations include prioritizing preventive maintenance, using monitoring technology, and strengthening supporting policies.

Pengendalian biaya dalam proyek konstruksi sangat penting untuk memastikan keberlangsungan proyek. Dalam proyek konstruksi, memilih bahan dan metode yang sesuai dapat membantu dalam efisiensi biaya selama pelaksanaannya. Pemilihan material dan metode alternatif tidak otomatis mengurangi fungsi atau kualitas proyek. Oleh karena itu, analisis biaya proyek diperlukan untuk mengawasi aspek – aspek tersebut. Metode yang digunakan untuk mengoptimalkan biaya dalam suatu proyek konstruksi adalah dengan menerapkan value engineering. value engineering merupakan upaya yang sistematis dan terorganisir untuk mencapai fungsi yang diinginkan dengan biaya paling ekonomis tanpa mengorbankan kualitas atau kinerja. Dengan menerapkan value engineering pada 3 item pekerjaan arsitektur pada proyek pembangunan SDN 2 Panjer dengan mengubah desain eksisting dengan alternatif desain  baru, mendapat penghematan biaya pada pekerjaan penutup atap sebesar Rp 21.862.305,86 atau 11,16% dari biaya pekerjaan desain eksisting, pekerjaan plafon sebesar Rp 1.228.792,01 atau 1,42% dari biaya pekerjaan desain eksisting, pekerjaan lantai dan dinding keramik sebesar Rp 9.835.732,08  atau 7,65% dari biaya pekerjaan desain eksisting, penghematan tersebut berdasarkan pada analisis Life Cycle Cost. Pengendalian biaya dalam proyek konstruksi sangat penting untuk memastikan keberlangsungan proyek. Dalam proyek konstruksi, memilih bahan dan metode yang sesuai dapat membantu dalam efisiensi biaya selama pelaksanaannya. Pemilihan material dan metode alternatif tidak otomatis mengurangi fungsi atau kualitas proyek. Oleh karena itu, analisis biaya proyek diperlukan untuk mengawasi aspek – aspek tersebut. Metode yang digunakan untuk mengoptimalkan biaya dalam suatu proyek konstruksi adalah dengan menerapkan value engineering. value engineering merupakan upaya yang sistematis dan terorganisir untuk mencapai fungsi yang diinginkan dengan biaya paling ekonomis tanpa mengorbankan kualitas atau kinerja. Dengan menerapkan value engineering pada 3 item pekerjaan arsitektur pada proyek pembangunan SDN 2 Panjer dengan mengubah desain eksisting dengan alternatif desain  baru, mendapat penghematan biaya pada pekerjaan penutup atap sebesar Rp 21.862.305,86 atau 11,16% dari biaya pekerjaan desain eksisting, pekerjaan plafon sebesar Rp 1.228.792,01 atau 1,42% dari biaya pekerjaan desain eksisting, pekerjaan lantai dan dinding keramik sebesar Rp 9.835.732,08  atau 7,65% dari biaya pekerjaan desain eksisting, penghematan tersebut berdasarkan pada analisis Life Cycle Cost.

The product life cycle was first used in US Department of Defense military matters, where it applied mainly to DoD procurement of military equipment. Its use has expanded by companies operating in various sectors, such as building and construction, machinery and equipment manufacturing, and other industries that require high costs, and the life cycle of their products is relatively long and has clear stages, as the complete product life cycle mainly covers the costs of research, experimentation, acquisition, maintenance, transportation, and storage, and that the essence LCC is not only the running cost, but also the cost related to the product.The research at Nasr General Company for Mechanical Industries aims to shed light on two main tools of contemporary cost management that work to calculate the cost of the product over the product life cycle and make improvements to it continuously according to the continuous improvement technique. Thus, they work appropriately to reduce product costs and the costs are calculated according to The accounting system prepared in the company under investigation..