Public-Private Partnership (PPP)

A public-private partnership (PPP) is a long-term contractual model in which a private consortium designs, builds, finances, and maintains (or operates) a public infrastructure asset or service, while the contracting authority pays for the use of that asset over a period that typically spans 20 to 30 years. The private party's revenue is contingent on meeting defined availability, performance, and quality standards, aligning its commercial interests with the outcomes the public sector requires.

What is a Public-Private Partnership (PPP)?

PPP is a broad term that encompasses a range of structures, from the UK's Private Finance Initiative (PFI) and its successor PF2, to EU-member-state PPP programmes for motorways, hospitals, schools, water infrastructure, and public buildings across France, Spain, Germany, Poland, and others.

The common elements across European PPP structures include:

• A special purpose vehicle (SPV) formed by the private consortium, which is the contracting party
• A concession or service agreement between the SPV and the contracting authority
• Private financing (debt and equity) raised by the SPV, secured against the payment stream from the authority
• Design and build responsibility sitting with the private consortium, delivered through sub-contracts
• Facilities management or operational responsibility for the asset over the concession period
• Availability payments or service payments from the authority, deducted if performance standards are not met
• Asset transfer to the public authority at concession end (in most structures)

In the EU, PPPs with concession characteristics (where the operator bears operating risk) are governed by Directive 2014/23/EU. PPPs structured as service contracts or works contracts are governed by Directive 2014/24/EU. The procurement must be competitive in either case.

PPP differs from a build-operate-transfer structure primarily in the revenue model: BOT typically involves user-paid revenue (tolls), while PPP/PFI involves availability payments directly from the public authority. The distinction affects who bears demand risk.

Why it matters for bidders

PPP procurement involves long bid periods (often two to four years from OJEU notice to financial close), high bid costs, and intense due diligence on the private sector's financial strength and track record. Direct prime contract opportunities are typically limited to large infrastructure investors, construction groups, and FM operators.

However, the supply chain opportunities across a 25-year PPP contract are substantial. Construction subcontractors, specialist equipment suppliers, FM service providers, and technology firms all participate through the SPV's supply chain throughout the concession period.

Example

A French regional authority procures a new hospital complex as a PPP. A consortium comprising an infrastructure fund, a construction group, and a facilities management company forms an SPV. The SPV finances, designs, builds, and maintains the hospital for 30 years. The authority pays quarterly availability payments, subject to deductions if ward availability falls below 98% or if maintenance standards are not met.

Frequently Asked Questions

Are PPPs still being used in Europe after PFI was discontinued in the UK?

Yes. While the UK's central government announced the end of PFI and PF2 as national programmes in 2018, PPP as a model continues in the UK through local authority schemes and infrastructure investment vehicles. Across EU member states, PPP remains an active procurement model, particularly for transport, energy, and social infrastructure. The European Investment Bank actively supports European PPP projects.

What is the difference between a PPP and a standard long-term service contract?

In a PPP, the private party typically provides private finance and takes on construction and lifecycle risk in addition to service delivery. In a standard long-term service contract, the contracting authority funds the infrastructure and the supplier provides the service only. The private finance element and the integrated lifecycle responsibility are the distinguishing features of PPP.

How is a PPP evaluated for value for money?

Contracting authorities conduct a Public Sector Comparator (PSC) analysis comparing the lifecycle cost of PPP delivery against conventional public procurement. If the risk-adjusted cost of PPP is lower (accounting for the cost of private finance and the value of risk transfer), the PPP route may offer better value. Critics argue that PPP structures systematically understate long-term costs; proponents argue that conventional public procurement systematically understates construction cost risk.