When Capital meets Climate: How Bankability is turning Green Hydrogen from a Pilot Project into a Billion-Dollar Market

Apr 08, 2026Sustainability

The conference room is darkened; a vision of the future is projected onto the screen: an industrial park where blast furnaces and chemical plants run on green hydrogen. The energy comes from offshore wind, CO₂ emissions drop dramatically, and the business model looks solid. When the lights come on, the enthusiasm is palpable – and yet skepticism is evident on some faces. “Who can guarantee that this project will still be economically viable in 15 years?” asks a potential investor. “Is it really bankable?” “Bankable” projects are those that, from the perspective of banks and investors, are structured in such a transparent, risk-manageable, and reliable way that they can be financed over long periods of time and on reasonable terms.

For Dr. Christoph Flink, Vice President of Hydrogen Economy at DEKRA, scenes like this are an everyday occurrence. “We rarely fail because of the technology,” he says. “We fail because investors can’t grasp the risk.” His focus: bankability and how it determines whether ambitious hydrogen projects translate into actual investments.

Why bankability will determine the future of green hydrogen

Green hydrogen is considered key to the transformation of energy systems: heavy industry, heavy-duty transport, long-term storage – wherever electrification alone is not enough, it can replace fossil fuels. On paper, the principle is simple: renewable energy reacts with water, and low-emission hydrogen is produced through electrolysis.

In reality, Dr. Flink sees other obstacles: high investment costs, long project durations, and complex value chains. Funding programs at the federal and EU levels provide a boost, but they are often temporary and politically driven.

Bankability doesn’t just mean that an Excel spreadsheet adds up. It means that, from the perspective of banks and investors, a project’s risks are manageable in every respect – technically, legally, economically, and organizationally.

Dr. Christoph Flink – VP Hydrogen Economy at DEKRA

This is precisely where the drawbacks of green hydrogen become apparent: there is a lack of long-term operational experience, stable business models, and clear regulatory frameworks. Added to this are high initial investments and costs for green hydrogen, while markets and prices are still in flux. A wide variety of hydrogen subsidies support many projects, but without convincing bankability, large portions of private capital remain out of reach.

Lessons from the solar industry – From high-risk Investment to asset class

When you listen to Dr. Christoph Flink, you get the sense that he has seen this kind of development before. In the early days of photovoltaics, solar projects were considered risky experiments: modules with no long track record, unclear feed-in tariffs, and returns that were difficult to predict.

Over time, a different reality took hold. Technologies were standardized, quality standards were introduced, and performance data was made transparent. The bankability of solar power plants improved step by step until banks were able to calculate the risks. It was no longer a matter of gut feelings, but of systematic risk assessments.

Green hydrogen must now follow the same path – from a one-off technical demonstration to a repeatable, standardized solution that financial markets can trust.

Dr. Christoph Flink – VP Hydrogen Economy, DEKRA

How uncertainty becomes a manageable risk

In his projects, Dr. Christoph Flink often encounters a situation that reminds him of those first few minutes in the conference room: highly motivated teams present impressive technical concepts, but as soon as the topic turns to financial feasibility, the room falls silent. What’s missing is a common language between the technical and financial worlds.

To bridge this gap, Dr. Christoph Flink breaks down hydrogen projects into clearly defined risk categories – technology, operations, market, regulation, contractual partners, and sustainability – and examines each one individually. An abstract concept of “hydrogen risk” is transformed into a structured picture:

From a technological standpoint, the key issues are whether complete systems deliver their promised performance in the field, how they respond to load fluctuations caused by renewable energy sources,

and what quality standards apply. In terms of operation, the focus is on how much maintenance the systems require and what levels of availability are realistic.

From a market perspective, the key question is how robust purchase agreements are when CO2 prices, energy prices, or regulations change. From a regulatory standpoint, project teams must demonstrate that their calculations do not depend on specific, uncertain hydrogen subsidy programs, but remain viable even if the regulatory framework changes.

The more clearly these points are substantiated, the less investing in hydrogen feels like a gamble – and the more it feels like a predictable infrastructure business.

Independent audits as a bridge between vision and capital

For Dr. Christoph Flink, independent audits, certifications, and standardized procedures are a key lever. They translate technical complexity into clear metrics that investors understand and need.

When a system’s performance is tested, security concepts are audited, and operational strategies are documented in a transparent manner, a clear picture emerges that investors can understand. A visionary pitch becomes a project whose risks can be identified and factored into the pricing.

Combined with more stable framework conditions for public funding of hydrogen in Germany and the EU, this has a twofold effect: public funding provides the initial impetus, while improved bankability increases the inflow of private capital. As a result, the costs of green hydrogen become more competitive in the long term, and the transition away from fossil fuels moves closer.

Dr. Christoph Flink sums it up this way: “The better we define, measure, and demonstrate bankability, the faster the idea of a climate-neutral energy system will become a real, financeable option. Then decisions will no longer be based solely on beliefs, but on verified facts – and capital and the climate will be working in harmony.”