The Private Infrastructure Development Group (PIDG) has invested $3.3 million to support the expansion of Sanivation’s waste-to-energy facility in Naivasha, Kenya, marking a key milestone in promoting circular economy solutions across East Africa. The investment, channeled through PIDG’s project development arm InfraCo, is complemented by a $500,000 technical assistance grant to strengthen operational capacity and environmental standards at the facility. The funding will enable the Naivasha Treatment Plant, developed in partnership with Nakuru County, to increase its waste processing capacity and produce solid fuel briquettes from treated fecal sludge, offering an environmentally friendly alternative to firewood in industrial applications. The expanded facility is expected to commence operations in 2027.
Sanivation’s business model converts untreated fecal sludge, blended with residues from sawmills and agricultural waste, into energy-dense briquettes through a controlled thermal treatment process. These briquettes offer industrial clients a cost-effective and cleaner energy source, reducing energy costs by 10–30% compared to conventional fuels while preventing deforestation. Currently, the plant serves around 15,000 people, but the expansion will allow treatment of waste from up to 130,000 households, addressing both sanitation challenges and environmental pollution in a rapidly growing urban area.
The investment is particularly significant for Lake Naivasha, which faces severe ecological degradation due to agricultural intensification, urbanization, and industrial activity. Sanivation’s operations reduce fecal sludge entering the lake, mitigating soil pollution and alleviating pressure on this critical freshwater ecosystem. By creating value from waste that would otherwise harm the environment, the project contributes to both ecosystem restoration and public health improvements.
PIDG’s financing exemplifies the role of development capital in de-risking innovative infrastructure projects. By combining equity investment with technical assistance, PIDG supports operational efficiency, governance, and compliance with international standards while demonstrating the commercial viability of circular economy solutions. This approach encourages private sector participation in emerging sectors where perceived risk may otherwise limit investment.
Across Africa, waste-to-energy initiatives are gaining momentum, with projects in South Africa, Sierra Leone, Burkina Faso, and Kenya demonstrating technical feasibility and environmental benefits. Technologies such as anaerobic digestion, biogas production, and solid fuel briquette generation are being applied to industrial, agricultural, and municipal waste streams, providing renewable energy alternatives while reducing pollution and greenhouse gas emissions.
Sanivation’s operations also generate local economic benefits, including direct employment in waste collection, plant operations, and briquette sales, and indirect employment for sawmill workers, transport providers, and agricultural suppliers. The 2027 expansion will scale these benefits, supporting youth employment, small enterprises, and social stability in Nakuru County. By sourcing inputs locally and promoting circular economy practices, the project strengthens regional economic resilience and encourages entrepreneurship in waste valorization.
The Naivasha facility serves as a proof-of-concept for replicable waste-to-energy solutions across African cities. Its scalable model, supported by container-based sanitation systems and industrial demand for biomass fuels, can inform similar projects in countries including Tanzania, Uganda, Ethiopia, and beyond. Standardized technology platforms, technical training, and operational best practices enhance replication potential, while evidence from Sanivation’s operations can inform policy development and regulatory frameworks for sustainable waste management and renewable energy.
In conclusion, PIDG’s $3.3 million investment in Sanivation’s expansion represents a strategic deployment of development finance that addresses sanitation, energy, environmental, and economic challenges simultaneously. The project offers tangible benefits for Lake Naivasha, demonstrates innovative urban sanitation solutions for Kenya, and contributes to the growth of waste-to-energy initiatives across Africa. As the facility scales up in 2027, its performance will inform future investment decisions, public policy, and sector development, potentially catalyzing broader adoption of circular economy approaches across the region.
