Judul: Analisis Ekonomi Jejak Karbon dan Perencanaan Pembangkit Listrik Tenaga Surya sebagai Keberlanjutan Evaluasi Aspek Green Building (Studi Kasus: Gedung Rektorat AHN, IPB University)
Abstrak: Konsumsi energi bangunan meningkatkan emisi gas rumah kaca (GRK). Pengelolaan energi bangunan diperlukan sebagai mitigasi emisi GRK. Upaya yang dapat dilakukan adalah menerapkan konsep green building dan energi terbarukan. Pembangkit Listrik Tenaga Surya (PLTS) pada atap bangunan dapat diimplementasikan sebagai aksi mitigasi emisi GRK. Penelitian ini bertujuan untuk menentukan status keberlanjutan gedung AHN berdasarkan aspek efisiensi dan konservasi energi (EEC) green building, mengestimasi nilai jejak karbon gedung AHN, mengestimasi nilai reduksi emisi karbon gedung AHN setelah adanya PLTS, dan menganalisis perencanaan dan kelayakan PLTS. Analisis existing building greenship GBCI dilakukan untuk menentukan status keberlanjutan, reduksi emisi dengan metode reduksi emisi GRK, dan analisis NPV dan payback period untuk menilai kelayakan PLTS. Hasil penelitian menunjukkan bahwa gedung AHN belum berkelanjutan dalam aspek EEC. Nilai jejak karbon gedung sebesar 674,48 ton CO2 di tahun 2021. PLTS mampu mereduksi emisi hingga 91,12 ton CO2 atau (15,62%) per tahunnya. PLTS dengan masa operasional 25 tahun tidak layak dijalankan dengan NPV di bawah kriteria dan payback period melebihi masa operasional., Energy consumption in buildings increases greenhouse gases (GHG) emissions. Energy building management is required as a GHG emissions mitigation. Green building implementation and new energy usage with solar power plant (SPP) on building rooftop become one resolution to emission mitigation. This study aims to: (1) determine AHN’s green building aspect: efficiency and conservation energy (EEC) status, (2) estimate carbon footprint from AHN’s energy consumption, (3) estimate GHG emission reduction after SPP project implementation, and (4) analyze the feasibility of SPP project. GBCI greenship existing building analysis was employed to determine AHN’s sustainability status, GHG emission reduction evaluated by reduction method, and NPV and payback period analysis evaluated the project feasibility. The results showed that AHN is not sustainable in EEC aspects. GHG emission reached 674,48 ton CO2 in 2021. SPP could reduce GHG emission to 91,12 ton CO2 (15,62%) per year. SPP of 25 year operational is not feasible with NPV below the criteria and payback period over the operational year.
Keyword: bangunan hijau, efisiensi energi, kelayakan, PLTS, reduksi emisi, emission reduction, energy efficiency, feasibility, green building, solar power plant

Judul: Analysis of Carbon Footprint and Feasibility of Solar Power Plant Development at IPB University Dramaga Campus
Abstrak: Penggunaan bahan bakar fosil untuk pembakaran energi listrik menyumbang emisi karbon dioksida. Sebagai salah satu kampus yang mendukung pembangunan berkelanjutan dengan konsep green campus, IPB University terus melakukan inovasi untuk memanfaatkan energi ramah lingkungan dari sumber energi terbarukan. Implementasi penggunaan PLTS dilakukan sebagai upaya mitigasi penurunan emisi GRK (Gas Rumah Kaca). Penelitian ini mengenai potensi Pembangkit Listrik Tenaga Surya (PLTS) sebagai alternatif energi terbarukan. Penelitian ini bertujuan mengestimasi besar energi yang dapat disuplai PLTS, mengestimasi jejak karbon yang dihasilkan dari konsumsi listrik civitas IPB University Dramaga dan nilai reduksi emisi jika menggunakan PLTS, mengestimasi kelayakan pengembangan PLTS. Analisis jejak karbon dan reduksi emisi dengan metode reduksi emisi GRK, analisis perencanaan PLTS dan analisis NPV dan payback period menilai kelayakan PLTS. Hasil penelitian unit-unit gedung menunjukkan nilai jejak karbon sebesar 13.259,53 ton CO2 di tahun 2019. PLTS mereduksi emisi hingga 10.504,08 ton CO2 per tahunnya. PLTS dengan masa operasional 25 tahun layak dijalankan dengan NPV di atas kriteria dan payback period tidak melebihi masa operasional. Pada skenario 100% dengan NPV Rp. 100.599.971.111 dan Payback Period sekitar 7 tahun. Serta skenario 30% dengan NPV Rp. 30.412.943.981 dan Payback Period sekitar 7 tahun. Kata Kunci: green campus, jejak karbon, kelayakan, PLTS, reduksi emisi, The use of fossil fuels to burn electrical energy contributes to carbon dioxide emissions. As one of the campuses that supports sustainable development with the green campus concept, IPB University continues to innovate to utilize environmentally friendly energy from renewable energy sources. The implementation of the use of solar power plant is carried out as a mitigation effort to reduce GHG (Greenhouse Gas) emissions. This research is about the potential of SPP (Solar Power Plant) as an alternative renewable energy. This research aims to estimate the amount of energy that can be supplied by SPP, estimate the carbon footprint generated from electricity consumption of the IPB University Dramaga community and the value of emission reduction if using SPP, estimate the feasibility of developing SPP. Carbon footprint analysis and emission reduction with GHG emission reduction method, SPP planning analysis and NPV and payback period analysis assess the feasibility of SPP. The results of the study of building units showed a carbon footprint value of 13.259,53 tons of CO2 in 2019. SPP reduces emissions by 10.504,08 tons of CO2 per year. SPP with an operational period of 25 years is feasible with NPV above the criteria and the payback period does not exceed the operational period. At 100% scenario with NPV IDR 100.599.971.111 and Payback Period around 7 years. As well as the 30% scenario with NPV IDR 30.412.943.981 and Payback Period of about 7 years. Keywords: green campus, carbon footprint, feasibility, solar power plant, emission reduction
Keyword: analisis kelayakan

Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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