While institutional capital has increasingly flowed into Africa’s renewable energy sector over the past decade, the underlying financial plumbing remains structurally biased toward massive transactions. Early-stage, locally founded businesses are often left stranded, unable to absorb the multi-million-dollar cheques that large funds need to deploy to justify their own unit economics.
London-based clean energy financier Charm Impact is looking to rewire that system. The firm has announced the $6.25m first close of Hummingbird One, a $12m debt vehicle designed specifically to finance early-stage renewable energy and clean cooking startups across Sub-Saharan Africa.
The vehicle has secured commitments from a consortium of prominent impact and development finance institutions, including Oikocredit, the Dutch Good Growth Fund’s Seed Capital and Business Development (DGGF SCBD) facility managed by Triple Jump, the IKEA Foundation, and the Good Energies Foundation.
Alongside the fund’s launch, Hummingbird One has already deployed its first tranche of capital, backing Kenyan renewable energy equipment aggregator Megawatt Energies.
The ‘missing middle’ of climate finance
The core thesis behind Hummingbird One is the existence of a “missing middle” in African climate finance. Capital is largely accessible for established companies capable of absorbing millions of dollars, but there is a stark shortage of funding for scale-building.
Hummingbird One steps into this gap by writing loans ranging from $50k to $500k. It targets locally owned renewable energy businesses that are overlooked by traditional institutional capital because the transaction sizes are deemed too small to be efficiently underwritten.
“The renewable energy ecosystem is becoming increasingly effective at funding established scale. But it has not been designed to finance scale-building,” says Gavriel Landau, founder and CEO of Charm Impact. “Hummingbird One was created to address that structural mismatch.”
When growth capital is restricted to established players, the competitive landscape artificially narrows. According to Landau, this lack of funding traps promising local companies in sub-scale operations — not because there is a lack of market demand, but because of rigid and misaligned financing structures.
This sentiment is echoed by the fund’s backers. Selina Yang, an investment officer at Oikocredit, notes that early-stage companies are the bedrock of a sustainable energy ecosystem in Africa, but repeatedly fall below the ticket sizes that larger institutions can process.
“Vehicles like Hummingbird One play a critical role in nurturing the next generation of local enterprises that can scale into institutionally bankable, climate-resilient businesses,” Yang says.
Re-engineering the unit economics
The persistent hurdle in deploying $50k to $500k tickets is the operational cost of due diligence. To make small-ticket deployment economically viable rather than just an exercise in philanthropy, Charm Impact had to re-evaluate how debt is structured and monitored.
The firm built custom, specialist software to accelerate rapid credit assessment and continuous portfolio monitoring. By integrating structured data analysis and AI-enabled monitoring tools, Charm Impact claims to have reduced due diligence timelines from years down to months. This allows the fund to rotate capital efficiently while maintaining close oversight of its portfolio.
Furthermore, Hummingbird One operates as a “blended finance” vehicle. It stacks different tranches of capital — senior, junior, and catalytic — to balance risk and return. This tiered structure provides a shock-absorber effect: the junior and catalytic capital takes on a higher risk profile, which provides a safety net that “crowds in” more risk-averse, senior institutional investors.
“Catalytic capital is most effective when it aligns incentives across investors and enterprises,” explains Richa Goyal, programme manager at the IKEA Foundation. “By introducing flexibility within its capital structure, Hummingbird One shows how risk-sharing mechanisms can crowd in more risk-averse capital while remaining responsive to the realities faced by growing renewable energy companies.”
The fund also embeds strict impact metrics into its financial architecture. Performance outcomes are tied to specific environmental and social thresholds, and the vehicle targets an 85% allocation to locally owned and operated companies.
“Unlocking underserved markets with small ticket sizes takes operational rigour, while scale makes it sustainable,” says Begaim Sadyrova, investment manager at Triple Jump. She notes that the DGGF SCBD’s backing of the junior facility allows the Charm Impact team to act with the discipline needed to serve this SME segment effectively.
First deal: Megawatt Energies
To demonstrate the model in action, Hummingbird One’s inaugural investment has been allocated to Megawatt Energies, a renewable energy equipment aggregator based in Kenya.
In emerging markets, the supply chain for renewable infrastructure can be fragmented and highly volatile. Smaller distributors often struggle with procurement bottlenecks and high import costs. Megawatt Energies operates as an aggregator, bulk-procuring essential components like solar panels, inverters, and high-capacity batteries, and making them readily available to local, distributed energy startups.
By smoothing out the supply chain and reducing procurement friction, the capital injection allows Megawatt Energies to operate more efficiently, which in turn enables smaller downstream distributors to scale their reach into underserved Kenyan communities without worrying about hardware shortages.
The road ahead
The focus for Hummingbird One is squarely on continuity. Beyond writing the initial cheques, the fund is structured to provide repeat financing. The goal is to move local founders away from a cycle of constant, episodic fundraising, allowing them to focus entirely on operational execution.
“Local entrepreneurs are deeply embedded in the markets they serve. But too often they encounter financing models that are not designed around their growth realities,” says Lorraine Indangasi, chief investment officer at Charm Impact. “Our objective is to provide disciplined, repeatable capital that strengthens locally rooted operators over time.”
Initially, the fund will target four key African markets: Kenya, Uganda, Nigeria, and Zambia. Geographic expansion is planned once the $12m vehicle reaches its final close.
While Hummingbird One is a newly formalised vehicle, it builds on an established track record. To date, Charm Impact has deployed more than $5.4m across 40 loans in eight African markets. The firm reports that it has maintained a fully locally owned portfolio, backing companies that have collectively provided improved energy access to over 350,000 people.
With the launch of Hummingbird One, Charm Impact is betting that by fixing the unit economics of small-ticket debt, the next wave of Africa’s climate tech unicorns won’t be imported — they will be homegrown.