Large Infrastructure, What Makes a Project Actually Fundable

A pipeline of infrastructure projects arrives at a funder's evaluation panel. On paper, six of them look identical. Each has a positive economic net present value. Each has a plausible sponsor. Each has an environmental authorisation in progress. Each has letters of interest from at least one development finance institution or commercial bank.

Three of the six will attract financing. Three will not. The three that fail will not fail on the number that appears in the top-right cell of their bankability workbook. They will fail because their risk allocation cannot be structured, or because their off-taker credit does not hold up, or because a critical statutory approval will not be granted in the time the financing window allows.

Understanding what actually makes a large infrastructure project fundable, at the level of practitioners who arrange this financing for a living, is what separates a project pipeline that gets built from a project pipeline that gets talked about. This piece is written for government planners, state-owned enterprise executives, sponsor consortia, and multilateral development finance institution officers working on infrastructure in both emerging and developed markets. The examples draw on African and international project shapes, since the underlying principles are the same. Where a statutory reference is specific to a jurisdiction, the article names the jurisdiction; readers in other markets should treat the statute as illustrative and consult local counsel for the equivalent text.

What "fundable" actually means for a project this size

At any material scale (roughly two hundred million rand and above), an infrastructure project stops being funded from a single source. It becomes a package of instruments layered on top of one another, each carrying a different risk profile and each requiring a different set of conditions to be satisfied before it will commit.

The sponsor equity holds the residual risk. The senior debt holds the priority claim on the operating cash flows. The mezzanine or subordinated debt sits between the two. A development finance institution may hold a strategic tranche, sometimes with a soft-loan or blended-finance component. A government guarantee or a viability gap funding grant may sit alongside, taking off some of the risk the commercial parties would otherwise refuse. An off-take contract underwrites the demand side. An operations and maintenance contract underwrites the operating cost side.

A project is fundable when this stack can be assembled. It is not fundable when one of the layers refuses to commit on the terms the other layers require. A DFI that will lend at a certain rate only if there is a sovereign guarantee, a commercial bank that will lend only if the DFI takes first loss, a sponsor equity that will only put in cash on financial close, and a government that will only sign the guarantee if the equity is in place first, is a common circular deadlock that leaves projects unfunded for years.

The counterparty stack

The single most important set of decisions in structuring a fundable infrastructure project is who signs what, and who is liable for what if it goes wrong.

Sponsor equity. The sponsor is signing to accept the residual risk. Their equity capital is the last cash in and the first cash out. Their willingness to sign at a particular level of equity commitment tells the debt providers how much conviction the sponsor actually has in the project. Debt providers look at the sponsor's balance sheet, at their track record on similar projects, and at whether they have skin in the game beyond just their reputation. Sponsors who cannot show meaningful equity commitment relative to the debt tranche are sponsors who signal that they may walk away if the project runs into trouble. Debt providers price that in, or refuse to lend.

Senior debt providers. These are typically a syndicate: one or more commercial banks, sometimes a DFI, sometimes a bond investor community if the project is large enough to justify a rated capital markets issue. Their appetite depends on the DSCR, the tenor, the security package, and the covenant discipline. The World Bank's Public-Private Partnerships Reference Guide (World Bank, 2017) sets out the international norms for how these instruments are structured in emerging-market infrastructure contexts.

Off-taker. This is the single decision that most determines fundability. An off-taker with strong credit (a well-rated state utility, a well-capitalised industrial consumer, a diversified pool of retail consumers with regulator-approved tariffs) makes the project fundable. An off-taker with weak or contested credit (a municipality with a history of non-payment, a single industrial user with a stressed balance sheet, a merchant market with no floor) makes the project unfundable at any reasonable equity return. Everything else in the structuring exists to route around the off-take question.

Government support. Sovereign guarantees, viability gap funding, subsidies, tax incentives, and the like. These are the tools governments use to make projects fundable that would not otherwise clear a commercial hurdle. They come with strings: cost, conditionality, political risk, and the always-present question of whether a future government will honour what a current government promised.

Risk allocation

The other half of the fundability question is who bears which risk when things go wrong. The convention in project finance is that each risk should be allocated to the party best placed to manage it. In practice, this is a negotiation and the outcomes are messier than the convention suggests.

Construction risk. Sits with the sponsor and the engineering, procurement, and construction contractor. The debt providers insulate themselves by requiring completion guarantees and by refusing to advance the operating-phase debt until construction is complete and commissioning tests are passed.

Operational risk. Sits with the operations and maintenance contractor, usually under a long-term contract that includes performance guarantees. Where operational risk cannot be transferred to a contractor, it stays with the sponsor and the debt is priced accordingly.

Market or demand risk. This is where the off-take question lives. If there is a take-or-pay off-take contract with a credit-worthy counterparty, market risk is transferred. If the project is exposed to merchant market pricing, market risk sits with the equity and the debt is priced for that.

Foreign exchange and interest rate risk. In African markets these are material. Projects with revenues in local currency and debt in dollars or euros need hedging or a natural hedge, and hedging costs money. Debt providers will insist on a hedging policy before they close.

Political and change-of-law risk. The risk that a government changes the rules of the game after the project is committed. Difficult to hedge. Sometimes covered by DFI political risk insurance products. Sometimes accepted as a cost of doing business, priced into the equity return.

The environmental and social envelope

For any infrastructure project of material scale, the environmental and social envelope is not an optional extra. It is a fundability precondition.

Domestic law in most African jurisdictions requires an environmental impact assessment before construction can begin (in South Africa, under the National Environmental Management Act 107 of 1998 and its associated regulations). International DFIs impose their own overlays. The IFC's Environmental and Social Performance Standards (IFC, 2012) are the reference framework most emerging-market infrastructure debt providers now apply as a condition of lending. Projects that cannot show conformance with the IFC standards, and increasingly with the Equator Principles (Equator Principles Association, 2020), simply do not attract international commercial or DFI debt.

The community engagement dimension has become more, not less, demanding over the last five years. Sponsors are now expected to demonstrate meaningful engagement with affected communities, meaningful benefit sharing arrangements, and meaningful grievance mechanisms. Projects that treat community engagement as a compliance box to be ticked at the end of the process now routinely lose their funding at the eleventh hour when a stakeholder challenge emerges that could have been prevented with an earlier and more genuine engagement.

Bankable versus viable at large scale

Everything in the preceding sections is about bankability: can the financing package be assembled. That is only half the question. The other half is viability: will the project, once built, actually generate the cash to service its debt and reward its equity across the operating life of the asset.

At the scale of large infrastructure, viability is often more fragile than the summary metrics suggest. A twenty-five-year concession that models revenue growth at three percent per annum in real terms is making a compound assumption over a quarter of a century. Small errors in the underlying assumptions compound into large errors in the outcomes. A project that looks robust at an average annual DSCR of one point four across the concession may in fact spend three or four consecutive years below one point one during a demand slowdown, and that is where the covenant defaults happen and the equity gets wiped out.

The corrective is a serious viability discipline that sits alongside the bankability workbook. Full-life-of-project cash flow models, run under multiple demand and cost scenarios, with explicit stress cases for the assumptions that matter most. Not point estimates and not tornado charts alone; scenarios that model the shape of the cash flows across the years, and that identify where the project is at risk of running out of covenant headroom under conditions that are neither implausible nor catastrophic.

Cross-border infrastructure, an additional layer

A subset of infrastructure projects cross international borders: regional transport corridors, cross-border power interconnects, shared water resources, transboundary pipeline systems. These projects add a layer of complexity that single-jurisdiction projects do not carry.

The additional questions are political and legal. Which country's law governs the concession? Where does the arbitration seat sit? What happens if one host government defaults on its obligations while the other performs? Which regulator's environmental standard applies where the two diverge? Which currency does the project earn in, and how are foreign exchange proceeds repatriated? These are questions the sponsor and the debt providers must resolve in the financing documentation, and the answers matter more than any single line item in the bankability workbook.

Multilateral development finance institutions carry particular weight on cross-border projects because they can provide a form of political-risk umbrella that no single sovereign can provide alone. The World Bank's cross-border infrastructure financing history, and the equivalent role played by regional development banks in Africa, Asia, and Latin America, reflect this reality (World Bank, 2017). Cross-border projects that cannot attract a multilateral tranche often fail to attract senior commercial debt at all, because the political-risk profile is too concentrated for commercial lenders to price on their own.

Case shapes

Certain project shapes recur across the infrastructure landscape, in both emerging and developed markets. Each has its own fundability signature.

Bulk water projects. Fundability turns almost entirely on the counterparty credit of the offtaker, usually a municipal or metropolitan water services authority. Where the offtaker has a history of arrears or unresolved regulatory disputes, projects that are otherwise viable become unfundable. Sponsors have responded with structures that route the payment obligation through a national escrow, or that layer a treasury guarantee over the municipal covenant. The 2019 to 2024 South African experience of stressed metros has made this a live issue.

Renewable energy projects. Fundability turns on the power purchase agreement with the offtaker (typically the national utility) and on the grid connection agreement. Where the power purchase agreement is long-dated, take-or-pay, and priced in a defensible way, projects clear commercial finance easily. Where the offtaker is stressed or the grid connection is uncertain, projects go through multiple financing rounds and often collapse.

Transport corridor projects (roads, rail, ports). Fundability turns on the government guarantee or the availability payment structure. Concession models with real traffic risk have a poor track record globally and an especially difficult one in African markets where traffic forecasting is unreliable and enforcement of user charges is uneven.

Social infrastructure (hospitals, schools, court buildings). Fundability turns on the availability payment stream from the sponsoring government department. Long-dated obligations against a departmental budget that has to be re-appropriated annually are a difficult sell to a debt provider without a treasury layer.

What a credit committee reads first

An infrastructure credit committee memo, in most institutions, is fifteen to twenty pages long. The credit committee reads five things closely and skims the rest.

The five things they read closely: the project summary (one page), the counterparty summary showing who has signed what (one page), the sensitivity analysis (one page), the risk allocation matrix (usually one or two pages), and the covenant and event of default schedule (usually two pages). The rest of the memo is background: technology, market, sponsor track record, environmental and social review, legal opinions. Necessary, but not what determines the vote.

Sponsors who understand this write those five pages first, and treat them as the deliverable. Sponsors who do not, write a hundred pages of background and staple a two-page summary at the front, and wonder why the credit committee did not engage with the substance.

What CentraSolve does at this level

The CentraSolve Large Infrastructure module is designed to hold this workflow: from project prioritisation and prospectus development through to bankability feasibility, cost-benefit analysis, sensitivity modelling, and BFI submission. The workflow reflects the National Treasury BFI conventions and the DFI reference guidance so that submissions produced through the platform are aligned with the evaluation frameworks they will be assessed under. It supports the discipline; it does not replace the sponsor's judgement about their own project.

Projects that clear the CentraSolve M1 workflow are not necessarily the projects that get funded. Funding depends on the counterparty stack, the market conditions, and the willingness of the debt providers to take the specific risks a specific project brings. But projects that clear the workflow are the projects that have done the work honestly, and those are the projects whose sponsors can walk into a BFI evaluation or a DFI credit committee knowing that the questions asked of them will be questions they have already answered.

References

International reference frameworks

World Bank Group. (2017). Public-private partnerships reference guide (Version 3.0). Washington, DC: World Bank.

International Finance Corporation. (2012). IFC performance standards on environmental and social sustainability. Washington, DC: IFC.

Equator Principles Association. (2020). The Equator Principles (EP4). Retrieved from https://equator-principles.com

South African statutory and framework sources

Republic of South Africa. (1998). National Environmental Management Act 107 of 1998. Pretoria: Government Printer.

National Treasury, Republic of South Africa. (2019). Budget Facility for Infrastructure: guidelines and templates. Pretoria: National Treasury.

Textbook and practitioner sources

Yescombe, E. R., and Farquharson, E. (2018). Public-private partnerships for infrastructure: principles of policy and finance (2nd ed.). Oxford: Butterworth-Heinemann.

Editor's note. Statutory citations and framework versions are current as at the time of writing. Readers using this article to inform a live transaction should confirm the current text and version of each reference against its primary source. Neither this article nor the CentraSolve Large Infrastructure module substitutes for transaction counsel, financial advisor, or environmental specialist advice on a specific project.