Overview

The Zimbabwe Biogas PoA is a transformative, large-scale initiative spearheaded by ISDF and Cenergy Biogas Systems. It is designed to convert Zimbabwe’s escalating organic waste crisis into a significant source of clean energy and a lucrative carbon finance opportunity.
Zimbabwe faces a growing problem of organic waste originating from multiple sources, including cow dung on farms, food waste, municipal solid waste, and wastewater. Left to decompose in the open, these materials release massive quantities of methane—a greenhouse gas with a global warming potential many times greater than carbon dioxide. This not only contributes to climate change but also creates serious health risks through water contamination and air pollution, while wasting valuable resources that could be repurposed for energy and agriculture. The project offers a comprehensive solution by deploying state-of-the-art Cenergy Biogas Digesters to capture methane from these waste streams and transform it into a clean, usable energy source. The project is structured around a sophisticated two-tier Program of Activities (PoA) value chain:
• Tier 1 – Biogas Generators: This tier focuses on the local production of biogas. It involves rolling out thousands of biogas digesters to farmers, households, and local authorities across the country. These digesters break down organic waste in an oxygen-free environment, producing biogas for direct use in cooking and heating, and a nutrient-rich bio-slurry that serves as a high-quality organic fertilizer.
• Tier 2 – Biogas Aggregators: This is the commercial and industrial arm of the project. Aggregators will collect raw biogas from multiple Tier 1 generators, then purify, compress, and bottle it. This creates a marketable, high-energy product that can be distributed to households and businesses, effectively creating a new energy commodity that can replace expensive and polluting alternatives like firewood, charcoal, and fossil fuels.
The PoA is designed for nationwide impact, with a primary focus on six provinces: Masvingo, Manicaland, and the four Mashonaland provinces, along with selected areas in Harare Metropolitan. The initiative is structured in four key phases. The initial phase focuses on foundational work, including project design and baseline studies. The second phase involves a pilot deployment to fine-tune the model, followed by a full-scale rollout across all target provinces in phase three, culminating in continuous carbon credit issuance and project expansion in phase four. The project’s financial viability is secured through multiple revenue streams. The most significant is the sale of carbon credits (VCUs/VERs) on the international voluntary carbon market. Other income is generated from the sale of bottled biogas, the marketing of bio-slurry fertilizer, and tipping fees paid by municipalities for waste disposal. This diversified model, supported by a blended finance structure involving climate funds, impact investors, and government co-funding, ensures long-term sustainability. Ultimately, this project is a blueprint for a cleaner, more resilient Zimbabwe. Beyond energy generation, it promises substantial co-benefits: improved waste management, creation of green jobs, enhanced agricultural productivity through bio-slurry, and a significant contribution to the nation’s Nationally Determined Contributions (NDCs) under the Paris Agreement.

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