Zimbabwe Explores Ethanol-Diesel Blending to Stabilise Fuel Costs and Boost Energy Security

Zimbabwe is embarking on a comprehensive research and trial programme to integrate ethanol into diesel, a strategic move aimed at mitigating escalating fuel costs, reducing reliance on imports, and shielding the national economy from volatile global oil price fluctuations. This initiative signifies a pivotal step in the government’s ongoing efforts to enhance energy independence.

The trials, spearheaded by Green Fuel Zimbabwe, are meticulously designed to ascertain optimal blending ratios, evaluate compatibility with the diverse range of local vehicle engines, and assess the long-term viability of ethanol-diesel fuel systems under prevailing Zimbabwean conditions. This scientific approach underscores a commitment to ensuring the safety and efficacy of the proposed fuel alternative.

This development aligns with the government’s intensified drive to expand domestic ethanol production. Significant investments are being channeled into new sugarcane plantations across key agricultural regions, including Mwenezi, Chisumbanje, and Chiredzi. This broader push is integral to strengthening the nation’s energy security framework and alleviating pressure on crucial foreign currency reserves.

Government officials have indicated that the urgency of this programme has been amplified by recent sharp increases in global fuel prices. These surges are largely attributed to geopolitical tensions in the Middle East, which have exerted upward pressure on both diesel and petrol prices within Zimbabwe in recent months.

Ethanol blending, a process involving the admixture of imported petroleum products with locally produced ethanol, offers a cost-effective solution. Ethanol is generally more affordable than refined petroleum sourced from international markets. By increasing the ethanol component, the overall cost of fuel is lowered, simultaneously diminishing the nation’s dependence on foreign imports.

Zimbabwe has a well-established history of mandatory ethanol blending for petrol. The Zimbabwe Energy Regulatory Authority (ZERA) recently elevated the blending ratio from E5 to E20, demonstrating a progressive approach to biofuel integration.

In a recent interview, Energy and Power Development Minister July Moyo confirmed the commencement of diesel blending trials, though he noted that specific implementation timelines are yet to be established. “We have started experiments and these are being conducted by Green Fuel,” Minister Moyo stated. “At the moment, there are no timelines on when this will begin. However, as I have said, trials have begun and the results will then determine the way forward. The new sugarcane plantations in Chisumbanje, Mwenezi and Chiredzi will also help support the fuel blending projects.”

Minister Moyo further elaborated that the programme holds significant potential to temper the rising cost of diesel, which has seen a notable increase following geopolitical events in February. “This is actually a good initiative, as it helps lower the price of the commodity,” he added, citing the previous reduction in petrol prices by US$0.15 cents when the blending ratio for petrol shifted from E5 to E20. This earlier transition substantially reduced the volume of imported fuel required for petrol consumption.

Two weeks prior, ZERA announced a reduction in the price of blended petrol (E20) from US$2.23 to US$2.08 per litre, while diesel experienced a marginal decline from US$2.11 to US$2.09 per litre. The regulatory body largely attributed the decrease in petrol prices to the increased ethanol blending levels.

However, economists offer a nuanced perspective, suggesting that blending alone may not entirely resolve Zimbabwe’s persistent fuel pricing challenges. Professor Gift Mugano, an economist and executive director of Africa Economic Development Strategies, emphasized the need for broader reforms. He highlighted that approximately 80 percent of the fuel cost is attributable to the imported fuel and associated shipment expenses. “So, before Government added the levies and taxes, our fuel price will be already more than regional prices in Zambia and Botswana, South Africa,” Professor Mugano observed.

Professor Mugano advocated for a more competitive fuel market within Zimbabwe, urging the introduction of additional suppliers and a more efficient utilization of existing infrastructure, such as fuel pipelines. This, he argued, would foster a healthier market environment.

Harare motorist Mr. Takudzwa Hungwe expressed optimism regarding the proposed diesel blending initiative. “If it ensures that fuel costs and the cost of other goods and services remain stable, then it is a good move,” he remarked, reflecting a common sentiment among consumers.

Globally, ethanol blending has predominantly focused on petrol, with nations like Brazil leading extensive biofuel programmes aimed at reducing fuel imports and lowering emissions. Ethanol-diesel blending, however, remains relatively limited due to technical and engine compatibility complexities. Only a few countries, notably Sweden, have successfully implemented ethanol-based fuel systems for diesel engines through specialized blends like ED95, primarily for public transport and heavy-duty fleets. Other nations, including India and South Africa, have conducted pilot programmes or adopted broader biofuel blending frameworks, but widespread ethanol-diesel adoption is still in its nascent stages.