A guidebook on public-private partnership in infrastructure

C. FINANCING 
PPPs in infrastructure are normally financed on project basis. This refers to 
financing in which lenders look to the cash flows of an investment for repayment, 
without recourse to either equity sponsors or the public sector to make up any 
shortfall. This arrangement has several advantages: reduces the financial risk of the 
investors; may allow more debt in the financing structure; results in limited liability on 
project sponsors and more careful project screening.
However, project financing also has many disadvantages which include: more 
complex transactions than corporate or public financing; higher transaction costs
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; 
protracted negotiations between parties; requirement of close monitoring and 
regulatory oversight (particularly for the potential expostulate guarantees). 
When investors and financiers consider financing a project, they carry out 
extensive due diligence works in technical, financial, legal and other aspects of the 
PPP deal.
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This due diligence is intended to ensure that the project company’s (or 
SPV’s) business plan is robust and the company has the capacity to deliver on the 
PPP contract.
Sources of project finance 
The project finance may come from a variety of sources. The main sources 
include equity, debt and government grants. Financing from these alternative 
sources have important implications for the project’s overall cost, cash flow, ultimate 
liability on concerned parties, and claims to project incomes and assets.
Equity refers to the capital invested by the sponsor(s) of the project and 
others. The main providers of equity are project sponsors, government, third party 
private investors, and internally generated cash.
19.
See footnote 2 for the definition of transaction cost. 
20.
Often the term “bankability” is used in the industry to refer to feasibility of a PPP project. The term, however, 
may mean different things to different parties in a PPP. Generally it may be used if the project is financially 
viable (from financial perspective), legally tenable (from legal perspective), and administratively 
implementable. 

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A Guidebook on Public-Private Partnership in Infrastructure 
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Debt refers to borrowed capital from banks and other financial institutions, and 

capital market. Debt has fixed maturity and a fixed rate of interest is paid on the 
principal. Lenders of debt capital have senior claim on the income and assets of the 
project. Generally, debt finance makes up the major share of investment needs 
(usually about 70 to 90 per cent) in PPP projects. The common forms of debt are: 
• Commercial 
loan 
• Bridge 
finance 
• Bonds and other debt instruments (for borrowing from the capital market) 
• Subordinate 
loans 
Commercial loans are funds lent by commercial banks and other financial 
institutions. Bridge financing is a short-term financing arrangement (say for the 
construction period or for an initial period) which is generally used until a long-term 
(re)financing arrangement can be implemented.
Refinancing may allow more favourable lending conditions which reduce 
overall borrowing costs. Bonds are long-term interest bearing
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debt instruments 
purchased either through the capital markets or through private placement (which 
means direct sale to the purchaser, generally an institutional investor
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).
Subordinate loans are similar to commercial loans, but they are secondary or 
subordinate to commercial loans in their claim on income and assets of the project. 
To promote PPPs, governments often provide subordinate loans to reduce default 
risk and thereby reduce the debt burden and improve the financial viability of the 
projects (see box 1).
Special infrastructure financing institutions can be another source of debt 
finance. Many countries have established such institutions to meet the long-term 
debt financing needs of their infrastructure sectors. Public-private partnership 
projects awarded to private companies receive priority for financing from such 
institutions. Another important role that these financing institutions play is refinancing 
of private sector projects initially financed by banks, which find long-term financing 
for infrastructure projects difficult. 
The other sources of project finance include grants from various sources, 
supplier’s credit, etc. Government grants can be made available to make PPP 
projects commercially viable, reduce the financial risks of private investors, and 
achieve some socially desirable objectives such as to induce growth in a backward 
21.
Not all types of bonds however, pay interest. Zero coupon or discount bonds are bought at a price lower than 
their face values, with the face values paid back at the time of maturity. For such bonds, no additional 
interest is paid either on the face value or on purchase price. 
22.
Institutional investors such as investment funds, insurance companies, mutual funds, pension funds normally 
have large sums of money available for long-term investment and may represent an important source of 
funding for infrastructure projects. 

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A Guidebook on Public-Private Partnership in Infrastructure
 
 

area. Many governments have established formal mechanisms for the award of 

grants to PPP projects.
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