Grid Constraints and Permitting Delays Hold Back Global Energy Infrastructure

Grid Constraints and Permitting Delays Hold Back Global Energy Infrastructure

The availability of investment capital is no longer the principal obstacle to delivering major energy infrastructure projects in many developed markets. Permitting delays, insufficient grid capacity and dependencies between infrastructure systems are proving just as difficult to resolve, leaving developers with funding available but projects that cannot yet move into construction.

A new international study by engineering consultancy Jacobs found that 71% of senior energy-sector decision makers believe sufficient investment capital is available, yet only 29% consider both capital and the supply of investable projects to be adequate. A further 43% report having access to capital but insufficient projects ready for investment.

Published in October, The Energy Readiness Equation draws on responses from 600 senior industry executives in the United States, United Kingdom, Germany, Singapore and Australia. Its findings point to a growing disconnect between financing energy infrastructure and assembling the regulatory, engineering and operational conditions necessary to deliver it.

Briefing

• 71% of surveyed energy leaders report sufficient capital, but only 29% see adequate capital and investable projects together.
• More than three-quarters expect at least 25% of major energy projects to face delay or cost overrun risks over the next three years.
• 56% identify permitting, consenting and regulatory or policy uncertainty as leading delivery barriers.
• 57% consider the readiness of infrastructure outside their direct control a major or critical constraint.
• International Energy Agency research identifies more than 2,500 GW of generation, storage and large-load projects stalled in electricity grid connection queues.

The Gap Between Investment and Construction

The financial viability of an energy project depends on considerably more than the willingness of investors to provide capital. A renewable generation scheme may have an established technology, a suitable site and a credible commercial model, yet remain unable to proceed without planning consent, transmission capacity or a confirmed connection timetable. Similar difficulties arise with substations, interconnectors and energy storage facilities, where equipment procurement and construction programmes must be coordinated with approvals and network availability, often across several organisations.

The Jacobs research suggests that these conditions are becoming increasingly difficult to align. More than three-quarters of respondents expect at least a quarter of their major energy infrastructure projects to be exposed to delays or cost overruns during the coming three years. These are expectations reported by industry executives rather than measured outcomes, but they indicate considerable uncertainty about delivery programmes.

Jacobs Executive Vice President Fiachra Ó Cléirigh said: “The capital is there, but getting the conditions around a project to line up can be harder. Projects can still stall when permitting, grid access, supply chains, skills and supporting infrastructure aren’t ready. Identifying barriers and resolving these dependencies earlier can give investors, developers and delivery teams greater certainty and help viable projects move forward faster.”

Investors may be prepared to support an energy asset in principle while remaining unwilling to commit substantial construction funding before its grid connection, permissions, delivery schedule and associated risks have become sufficiently certain. Contractors encounter a related problem when a substantial pipeline of proposed schemes fails to translate into predictable construction activity, particularly where workforce allocation, equipment procurement and mobilisation depend on decisions outside the developer’s control.

The difficulties become more pronounced when projects depend on supporting infrastructure delivered by separate organisations. An industrial facility may require new electricity connections, water infrastructure, telecommunications and transport improvements, each with its own approval process, budget and construction programme. Delays to one element can prevent the wider development from becoming operational, even when the principal facility is progressing satisfactorily.

Electricity Networks and the Construction Backlog

Research from the International Energy Agency provides a measure of the physical infrastructure constraints behind the Jacobs findings. Its Electricity 2026 report estimates that more than 2,500 GW of renewable generation, energy storage and large electricity-consuming projects are stalled in grid connection queues worldwide. Annual electricity network investment would need to increase by approximately 50% from the current level of around US$400 billion by 2030 to meet anticipated demand.

The development timescales are particularly challenging. According to the IEA, planning, permitting and constructing major grid infrastructure can require between five and fifteen years, compared with roughly one to five years for renewable generation projects and one to three years for data centres.

A new power generation facility can therefore be technically ready before the transmission infrastructure needed to connect it has been completed. Industrial developments and digital infrastructure encounter similar difficulties when their electricity requirements exceed available network capacity, leaving project owners dependent on reinforcement programmes whose schedules they cannot directly control.

Building additional transmission lines and substations remains essential, although network operators also have opportunities to improve the use of existing infrastructure. The IEA estimates that flexible connection agreements, grid-enhancing technologies and selected network upgrades could release sufficient capacity for approximately 1,200 to 1,600 GW of advanced-stage projects currently awaiting connection.

Dynamic line rating, advanced power-flow control and reconductoring existing transmission lines are among the available approaches. Their suitability depends on the particular network constraints involved, but they can provide additional capacity while more extensive transmission developments progress through planning and construction.

Electricity network investment consequently encompasses both large civil engineering programmes and complex upgrades to operational infrastructure. Transmission corridors, foundations, access roads, cable routes and substations must be delivered alongside electrical equipment installation, commissioning and network integration, often within systems that must remain operational throughout the work.

Different Markets, Different Delivery Constraints

The Jacobs survey identifies common difficulties across all five countries, although the balance between permitting, network readiness and supply chain pressures varies considerably.

In the United States, 80% of respondents place permitting among their three leading delivery barriers. Rapid growth in data centres, advanced manufacturing and other electricity-intensive activities is increasing the demands placed on generation and transmission infrastructure, while new development must contend with the different approval processes governing land use, environmental protection and network investment.

The United Kingdom faces a particularly acute network readiness problem, with 59% of respondents identifying grid availability among their three principal barriers, the highest proportion across the surveyed countries. Proposed generation and storage schemes can depend on reinforcement works that have not yet been completed, creating uncertainty over when projects will be able to connect and begin commercial operation.

Germany’s concerns are more closely associated with the cumulative pressure of project delivery. Eighty-four per cent of respondents expect at least a quarter of their major energy infrastructure projects to be at risk of delays or cost overruns, while 68% identify supply chain disruption as a potential operational risk. Specialist equipment, skilled labour and the continuing development of electricity networks all contribute to the challenge.

Elsewhere, the problem is shaped by the relationship between energy infrastructure and wider development. In Singapore, 67% of respondents regard the readiness of other infrastructure systems as a major or critical constraint. The country’s growing reliance on regional electricity imports introduces additional dependencies involving overseas generation, cross-border interconnectors and regulatory arrangements between neighbouring markets.

Australia has abundant renewable resources and substantial investment interest, yet 49% of surveyed executives report sufficient capital alongside a shortage of investable projects. Another 61% identify external infrastructure readiness as a major or critical constraint, reflecting the need to coordinate new generation developments with transmission capacity and associated enabling works.

These findings represent the perceptions of surveyed executives rather than direct measurements of national infrastructure performance. Nevertheless, the comparison shows how similar investment difficulties can arise from different weaknesses in the development process, whether that involves permitting in the United States, network access in Britain or supply chain and construction capacity in Germany.

The United Kingdom’s Grid Connection Reforms

Britain’s electricity connection reforms provide a practical example of attempts to bring project readiness more closely into the allocation of network capacity.

The National Energy System Operator has introduced arrangements intended to prioritise developments that demonstrate sufficient readiness and alignment with strategic energy requirements. Under the revised process, projects meeting Gate 2 criteria can secure a confirmed connection date, connection point and queue position, while those that do not qualify receive a Gate 1 offer without the same level of certainty.

The approach is designed to reduce the influence of speculative or insufficiently developed schemes in the connection queue. However, reassessing a large portfolio of interconnected projects has itself proved technically demanding, with NESO and network industry partners revising the timetable for issuing connection offers in February 2026 after identifying issues associated with revised network assumptions and construction planning.

The published implementation programme extends some connection offers into 2027. Even where revised arrangements eventually provide greater certainty, developers must still coordinate their construction programmes with the network works and equipment procurement needed to make those connections available.

Supply Chains and Specialist Equipment

Electricity network expansion is also placing considerable demands on industrial supply chains. Transformers, high-voltage cables, switchgear and associated equipment require specialist manufacturing capacity, while transmission and substation construction depend on engineering design resources, civil contractors and appropriately qualified electrical personnel.

The IEA reports that prices for important grid components have nearly doubled over the past five years, adding pressure to infrastructure budgets already exposed to uncertain development schedules. Long manufacturing lead times can require developers and network operators to make procurement commitments well before every project interface has been resolved.

Design changes, delayed consent or alterations to connection arrangements can affect the suitability of equipment already specified. Deferred installation may also require revised delivery arrangements, extended storage or changes to commissioning schedules, with contractors sometimes managing the consequences of decisions made much earlier in the development process.

These difficulties are particularly relevant to large transmission programmes, where specialist components may be required at several points along a construction sequence. A delay in the availability of one critical item can affect work across multiple sites, especially where installation teams and heavy lifting equipment have been scheduled around a limited commissioning window.

The German survey results, with more than two-thirds of respondents concerned about potential supply chain disruption, suggest that equipment availability remains an important source of uncertainty alongside permitting and network access.

Confidence in Assets and the Resilience Gap

The Jacobs research also identifies a difference between confidence in existing infrastructure and the extent to which resilience is embedded in planning.

Almost 95% of respondents express some or considerable confidence that their critical assets would continue operating during a major disruption, yet only 36% describe resilience as proactively incorporated into planning and decision-making. Confidence in operational assets does not necessarily indicate that the same approach is being applied systematically to new infrastructure.

For electricity networks, resilience requirements can influence equipment redundancy, network configuration, physical protection, site selection and recovery arrangements. In coastal or flood-prone locations, they may affect substation elevations, drainage systems, access roads and the protection of electrical equipment, introducing additional engineering requirements that are often easier to accommodate during initial design than after construction contracts have been awarded.

The survey does not establish whether executives’ confidence in existing assets is justified. It does, however, reveal a considerable difference between perceived operational reliability and the reported maturity of resilience planning, at a time when infrastructure owners are being asked to accommodate both increasing electricity demand and changing operating conditions.

From Investment Pipelines to Construction Programmes

Energy infrastructure development is attracting substantial investment interest, but the volume of proposed projects provides an incomplete picture of the work likely to reach construction within any particular period.

The Jacobs findings and the IEA’s research describe different aspects of the same delivery problem. One identifies the uncertainty experienced by project owners and investors, while the other documents the scale of electricity network constraints and the lengthy programmes required to address them. Together, they suggest that even where financing is available, construction activity will depend heavily on the sequencing of regulatory approvals, network reinforcement and equipment procurement.

Jacobs President of Global Operations Patrick Hill said: “There is no single organization, sector or geography with all the answers to the energy security challenge, but there is a lot we can learn from one another. From our own experience, delivery improves when the industry shares what works and addresses dependencies earlier – with governments, regulators, investors and delivery teams working from a collective view of what is needed. That is how energy ambitions become infrastructure that serves economies and communities for decades.”

The investment proposed for energy infrastructure points towards a substantial workload for network operators, equipment manufacturers and engineering contractors. How quickly that workload reaches construction will depend on the less visible stages of development, from securing grid connections and permits to ordering equipment and completing the infrastructure on which each project relies. Those stages can take longer than building the generating assets themselves.

Key Industry Questions

1. What is preventing investment capital from reaching energy infrastructure projects? Permitting uncertainty, grid connection limitations, equipment availability and dependencies on supporting infrastructure can prevent otherwise viable projects from becoming ready for construction.
2. How many energy industry leaders believe sufficient capital is available? The Jacobs survey found that 71% of respondents believe sufficient capital is available, although only 29% report having both enough capital and enough investable projects.
3. Why are grid connections delaying renewable energy construction? Transmission capacity, substations and network reinforcement often require longer development periods than renewable generation facilities. Projects may consequently be ready before the necessary connection infrastructure is available.
4. How large is the global electricity grid connection backlog? The IEA estimates that more than 2,500 GW of renewable generation, energy storage and large-load projects are stalled in electricity grid connection queues worldwide.
5. What are the main energy infrastructure barriers in the United Kingdom? Grid and network readiness is a prominent constraint, alongside planning, permitting and regulatory uncertainty. Fifty-nine per cent of UK respondents in the Jacobs survey ranked network readiness among their three main barriers.
6. What is the purpose of the UK’s Gate 2 grid connection process? Gate 2 is designed to prioritise projects meeting specified readiness and strategic alignment requirements, giving qualifying developments greater certainty over their connection dates, locations and queue positions.
7. Can existing electricity networks accommodate more projects without extensive new construction? Some additional capacity can be released through flexible connection agreements, improved network management and grid-enhancing technologies. The extent depends on existing network conditions and operational constraints.
8. Why do energy infrastructure supply chains affect construction schedules? Specialist electrical components can have substantial manufacturing lead times. Delays or design changes can affect installation schedules, procurement costs and commissioning arrangements.
9. How can energy project developers reduce infrastructure delivery risk? Earlier coordination of planning approvals, grid connections, equipment procurement and supporting infrastructure can improve scheduling certainty. It cannot eliminate external delays but can expose critical dependencies before construction commitments are made.

Strategic Takeaways

1. Project readiness is a commercial constraint: Available capital does not automatically create bankable, construction-ready infrastructure opportunities.
2. Network development is setting the pace: Transmission and connection infrastructure can require substantially longer development periods than the generation or industrial facilities they serve.
3. Construction pipelines require closer examination: Announced project values may overstate near-term contracting opportunities where consents, connections or enabling works remain unresolved.
4. Early procurement carries both value and risk: Securing specialist equipment can protect delivery schedules, but premature commitments create exposure to design changes and development delays.
5. Infrastructure coordination affects construction certainty: Projects involving multiple owners, utilities and regulators require clearly defined interfaces and realistic sequencing between independently managed programmes.