Microsoft and G42's $1 billion plan to build a geothermal-powered data center in Kenya—the cornerstone of a new Azure region for East Africa—is facing delays as negotiations over payment guarantees and power supply capacity drag on, according to people familiar with the matter. The holdup threatens to push back the timeline for Microsoft's cloud expansion in one of the continent's fastest-growing tech hubs.

The project, announced with fanfare in May 2024 as part of a broader $1 billion digital investment package, was set to be the first hyperscale data center in the region to run exclusively on renewable geothermal energy from the Olkaria fields. It promised to provide Azure services with a carbon-neutral footprint while boosting Kenya's digital economy. But nearly a year later, financing and infrastructure hurdles have slowed progress, underscoring the complexities of building cutting-edge cloud infrastructure in emerging markets.

Payment Guarantees Stall Funding

A central sticking point is the Kenyan government's role in guaranteeing payments for the data center's services. The project relies on a build-operate-transfer model, with Microsoft and G42 fronting the capital expenditure. In return, the government committed to being an anchor tenant, purchasing cloud services for its own digital transformation initiatives. However, the Treasury has yet to issue the sovereign payment guarantees that lenders demand before releasing funds, two sources told Reuters in December 2024.

Without these guarantees, the project's financial linchpin remains unsecured, delaying the final investment decision. While the Kenyan government reiterated its support for the venture, its fiscal constraints—exacerbated by high debt and a depreciating shilling—have complicated the guarantee process. Negotiations are ongoing, but no deadline has been set.

Phased Capacity and Power Negotiations

Adding to the uncertainty, the data center's power requirements are being negotiated in phases with Kenya Electricity Generating Company (KenGen). The original blueprint called for a 100-megawatt (MW) facility powered entirely by geothermal steam. But sources indicate that Microsoft and G42 are now considering a smaller initial deployment—possibly 40 MW—to match demand and reduce upfront risk. This phased approach would still tap geothermal power but would scale up capacity in increments as anchor tenant commitments solidify.

The power purchase agreement (PPA) with KenGen is critical. Geothermal energy offers a steady, baseload power source ideal for data centers, with a capacity factor above 90 percent, far exceeding solar or wind. However, the PPA must be bankable to satisfy project financiers. Negotiations over tariffs, minimum offtake volumes, and escalation clauses are still underway. A final agreement is expected by mid-2025, but delays could push the data center's commercial operation date beyond 2027.

Strategic Importance for East Africa

Despite the delays, the project remains a linchpin of Microsoft's strategy to bring Azure closer to users in Africa and to counter competitors like AWS and Google Cloud, which have also invested in the continent. The planned Azure region, tentatively called "Kenya Azure," would reduce latency for local businesses and government services, and meet data sovereignty requirements by keeping data within Kenya. Today, East African Azure customers are served by South African or European regions, adding milliseconds of latency and regulatory complexity.

For G42, the Abu Dhabi-based AI and cloud company, the partnership with Microsoft is a gateway to expand its footprint in Africa. The two companies have been deepening ties, with Microsoft investing $1.5 billion in G42 in April 2024. The Kenya data center is part of a multi-billion dollar collaboration that includes projects in other regions, such as a geothermal-powered data center in the UAE and joint AI initiatives.

Geothermal Advantage and Environmental Edge

The Olkaria geothermal fields in the Rift Valley provide a unique advantage. Unlike solar or wind, geothermal offers uninterrupted power—crucial for data centers that demand 99.999 percent uptime. The project aligns with Microsoft's pledge to be carbon-negative by 2030, and it would set a benchmark for sustainable data center design in the Global South. The facility would use direct geothermal cooling, reducing water consumption compared to traditional cooling towers.

Using geothermal also insulates the facility from fossil fuel price volatility, a significant factor in sub-Saharan Africa where diesel generators are often backup. However, the upfront infrastructure cost—including drilling new wells and building transmission lines—adds hundreds of millions to the project budget, further complicating the financing puzzle.

Financing Hurdles and Government Constraints

The $1 billion price tag requires a complex capital stack. Microsoft and G42 are expected to inject equity, while development finance institutions like the International Finance Corporation (IFC) and the African Development Bank (AfDB) are being courted for debt. But all lenders require sovereign guarantees, which Kenya's Treasury has been reluctant to issue given its debt distress. In 2024, the IMF classified Kenya as at moderate risk of external debt distress, and new guarantees could strain its fiscal targets.

President William Ruto's administration has championed the project as a flagship for the bottom-up economic agenda, but the Treasury has pushed back, seeking a smaller guarantee scope. Negotiations have explored alternative structures, such as partial risk guarantees or escrow accounts funded by government cloud spending, but no agreement has been reached.

Impact on Local Tech Ecosystem

Local tech professionals and businesses, who had anticipated the economic spillover, are growing anxious. The data center was expected to create thousands of construction and permanent jobs, and spawn a local cloud services ecosystem. Startups relying on latency-sensitive AI workloads might need to continue using distant Azure regions, increasing costs. A 2023 study by the Kenyan ICT Ministry estimated that a local hyperscale data center could boost the digital economy by up to $500 million annually through efficiency gains and innovation.

"The delay is a reality check," said John Tanui, an independent tech analyst based in Nairobi. "But if the guarantees come through, it could accelerate the entire region's digitization. The key is not to rush into a shaky deal."

Competitors Move Ahead

While Microsoft and G42 navigate Kenyan bureaucracy, rivals are not standing still. Amazon Web Services (AWS) opened a Cape Town region in 2020 and is expanding in North Africa. Google Cloud, buoyed by the Equiano submarine cable, serves Kenya through its Johannesburg region. Chinese cloud providers like Huawei have aggressively marketed their services to African governments, often with less stringent financing requirements.

The delay could allow competitors to entrench themselves, making it harder for Microsoft to gain a first-mover advantage in East Africa's nascent cloud market.

What's Next?

Industry watchers expect a phased approach to materialize later in 2025, with construction possibly starting by year-end. Payment guarantee terms could be finalized after Kenya's next budget cycle, with Parliament likely to weigh in. In the meantime, Microsoft is exploring alternative sites and interim solutions, such as edge computing nodes in Nairobi and Mombasa, to serve Kenyan customers.

The outcome will test whether public-private partnerships of this scale can thrive in Africa's frontier markets. For Microsoft, it's a high-stakes gamble that could either set a template for sustainable cloud expansion or reinforce why data center investments remain clustered in more established economies.