2026-02-232026-02-232025Mohamed Fathi. (31/12/2025). User manual for biogas production technology and low-cost renewable energy from organic waste (Arabic). Bayan Lepas, Malaysia: WorldFish (WorldFish).https://hdl.handle.net/20.500.12348/6941This user manual is produced as a part of Center of Renewable Energy in Aquaculture (CeREA) project, a 4-year groundbreaking initiative funded by the Royal Norwegian Embassy in Cairo in collaboration with WorldFish. Biogas, a form of renewable energy, can be harnessed from organic waste to produce clean energy for a range of farm operations. This practical guide provides a scientific overview of biogas production requirements, economic and technical design options and the environmental benefits across the aquaculture value chain. It also highlights future opportunities to expand the adoption of biogas technology as part of sustainable and socially responsible aquaculture practices.PDFCC-BY-NC-4.0Manual