Harnessing floating solar power to decarbonize Southeast Asia’s energy sector for carbon neutrality

By CGS Publication

Abstract

Floating photovoltaics (FPV) represent a cutting-edge solution for sustainable energy generation in Southeast Asia, a region characterized by abundant water resources and high solar irradiance. This work delves into the potential of FPV in decarbonizing the energy sector, highlighting its dual role in generating clean energy and mitigating water evaporation. With an estimated 300 MW of FPV capacity addition by early 2024, Southeast Asia is set to make significant strides in reducing greenhouse gas (GHG) emissions, aligning with global efforts to combat climate change. The FPV potential in the region is impressive, with Vietnam containing around 21–46 GW in reservoirs and 21–54 GW in natural water bodies alone. The work highlights the role of FPV in strengthening energy security and fulfilling obligations to the 2015 Paris Climate Agreement. FPV integration within the energy mix may help Southeast Asia cut down fossil fuel dependency, and through this, energy transition to a sustainable economy and greener environment can be achieved. The study also focuses on FPV’s environmental aspects of functioning as an ecosystem, arguing that these systems can improve land-based andbased generation efficiency by about 15 % and decrease water evaporation by 25 %. Recommended policies include setting appropriate incentive and disincentive structures, advancing support for R&D, and promoting cross-agency collaboration for FPV adoption to accelerate decarbonization goals. This work concludes that proper policy settings and government support can enable FPV technologies to enhance the renewable energy strategy for Southeast Asia, thereby contributing to global climate change mitigation.

Shorea macrophylla (Engkabang) phytochemical fruit extract exhibits antimicrobial susceptibility against Salmonella enterica and Citrobacter freundii

By Dr Norfadzlan bin Yusup Publication

Abstract

Bacterial infections are a major concern in aquaculture, and although antibiotics are commonly used for treatment, they may lead to toxicity and environmental risks. In search of safer alternatives, this study explores the antibacterial potential of natural compounds from the fruit of Shorea macrophylla (Engkabang), a native species
known for its bioactive phytochemicals. The objective was to evaluate the antibacterial activity of engkabang fruit extracts against five aquaculture-relevant bacteria: Pseudomonas koreensis, Citrobacter freundii, Enterobacter hormaechei, Salmonella enterica, and Bacillus subtilis. Using the disc diffusion method, extracts were tested at
concentrations of 20 mg/disc, 10 mg/disc, and 2 mg/disc with hexane, isopropanol, and acetone as solvents.

Notably, C. freundii showed inhibition zones at all concentrations with isopropanol and hexane extracts, while S. enterica exhibited inhibition zones at all concentrations with isopropanol and acetone extracts. These results indicate significant antibacterial activity, highlighting engkabang fruit extract as a promising natural alternative
to antibiotics in aquaculture