Recommendations & Conclusions
4 items
11
Recommendation
39th Report - Government’s use of priva…
Not Addressed
Though government attempts to determine the success of a project through measures such as cost-benefit analysis, they do not routinely evaluate completed projects.19 The UK has used a variety of private financing models to deliver new infrastructure, including but not limited to: Contracts for Difference, which guarantee wholesale prices for …
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Though government attempts to determine the success of a project through measures such as cost-benefit analysis, they do not routinely evaluate completed projects.19 The UK has used a variety of private financing models to deliver new infrastructure, including but not limited to: Contracts for Difference, which guarantee wholesale prices for generators over 15-year periods (e.g. offshore wind); Regulated Asset Base models, which allow a private sector provider to charge users a regulated price for utilities and include an element in bills to fund new investment; and the Private Finance Initiative (PFI)20 used extensively between 1992 and 2018 to design, build, finance, and operate infrastructure projects for public authorities, such as schools and hospitals.21
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Government response AI summary
The government's response describes its existing pre-project appraisal process using the Green Book to identify the preferred financing model, but does not commit to or address the recommendation for routinely evaluating completed projects post-implementation.
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HM Treasury
12
Recommendation
39th Report - Government’s use of priva…
Not Addressed
The National Audit Office’s (NAO) report on evaluating government spending highlighted that much of government’s activity is either not evaluated robustly or not evaluated at all, despite the government’s commitment to evidence-based decision-making.22 In addition, there 17 C&AG’s Report, para 3.26-3.27 18 C&AG’s Report, para 3.27-3.29 19 C&AG’s Report, para …
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The National Audit Office’s (NAO) report on evaluating government spending highlighted that much of government’s activity is either not evaluated robustly or not evaluated at all, despite the government’s commitment to evidence-based decision-making.22 In addition, there 17 C&AG’s Report, para 3.26-3.27 18 C&AG’s Report, para 3.27-3.29 19 C&AG’s Report, para 3.26 20 C&AG’s Report, Figure 6 21 C&AG’s Report, para 1.7 22 C&AG’s Report, Evaluating government spending, Session 2021–22, HC 860, December 2021, p 15 10 have been no assessments of the merits of private financing models relative to public procurement. Attempts have been made to remedy this issue, such as in 2021 when the government set up the Evaluation Task Force to support best practice in public policy evaluation across its departments. The following year, the Task Force published the evaluation strategies setting out how departments would undertake and learn from evaluation activity.23
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Government response AI summary
The government's response describes its existing pre-project appraisal process using the Green Book to ensure value for money, but does not commit to or address the recommendation for robust post-project evaluation or comparative assessments of financing models.
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HM Treasury
13
Conclusion
39th Report - Government’s use of priva…
Not Addressed
The Treasury told us that the proportion of major projects that have been evaluated has improved since the NAO’s evaluation report. After our evidence session, the Treasury wrote to us and stated that 68% of infrastructure and construction of major projects have a high-quality evaluation plan. Across all major projects, …
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The Treasury told us that the proportion of major projects that have been evaluated has improved since the NAO’s evaluation report. After our evidence session, the Treasury wrote to us and stated that 68% of infrastructure and construction of major projects have a high-quality evaluation plan. Across all major projects, 63% have at least some form of evaluation plan – but only 34% were deemed high quality. This leaves 37% of all major projects with no evaluation plan.24 The Treasury told us that to address some of these issues, the Evaluation Task Force published an action plan to keep improving evaluation across the major projects portfolio.25
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Government response AI summary
The government states the recommendation is implemented, but its response focuses on the Green Book appraisal process for selecting financing models, not directly addressing the committee's concern about the proportion of major projects lacking high-quality evaluation plans.
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HM Treasury
15
Conclusion
39th Report - Government’s use of priva…
Not Addressed
The overall value and number of infrastructure projects delivered using private financing models is significant, for example, on the Regulated Asset Base model, a combined £9 billion was invested in Thames Tideway Tunnel and Heathrow Terminal 5.28 In addition, the government announced in June 2025 that it will invest £14.2 …
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The overall value and number of infrastructure projects delivered using private financing models is significant, for example, on the Regulated Asset Base model, a combined £9 billion was invested in Thames Tideway Tunnel and Heathrow Terminal 5.28 In addition, the government announced in June 2025 that it will invest £14.2 billion in the Sizewell C nuclear 23 C&AG’s Report, para 3.29 24 Q 60; Correspondence from HM Treasury, 27 May 2025 25 Q 60; Government Major Projects Evaluation Review, Evaluation Task Force, April 2025 26 Qq 4 and 6; C&AG’s Report, paras 3.21-3.22 27 Qq 24 and 57 28 C&AG’s Report, para 1.8 11 power station.29 With the exception of PFI contracts, private finance contracts are not monitored centrally because responsibility for them rests with departments and sector regulators.30 Written evidence we received from Affinitext highlighted that the absence of complete, digitised and searchable contracts undermined effective contract management, preparation for assets to be handed back to the public sector at the end of a contract, and value for money assurances.31
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Government response AI summary
The government states the recommendation is implemented, but its response focuses on the Green Book appraisal process for selecting financing models, not addressing the lack of central monitoring or digitised contracts for non-PFI private finance projects.
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HM Treasury