Why Europe and Australia need faster ways to unlock distribution capacity. A white paper for infrastructure investors on distribution-grid investment, deferred reinforcement, regulated returns, and the role of grid-edge technologies
By Greg Dujon, Chief Executive Officer, ThirdEquation
Greg Dujon is Chief Executive Officer of Third Equation. He is an energy-sector leader with more than 20 years of experience spanning electricity-network transformation, smart technologies, global business development, M&A and management consulting. Before joining Third Equation, Greg held senior roles across the sector, including a 15-year tenure at Siemens. He also led development of a Net Zero capital investment plan for Ellesmere Port and holds a Ph.D. in electrical engineering.
At a glance
• Europe and Australia both need more grid capacity, but traditional reinforcement alone is often too slow, too capital intensive, or too blunt to resolve emerging distribution-network constraints.
• Investors are increasingly interested in technologies that improve asset utilisation, deployment speed and regulatory fit rather than simply adding more network steel and concrete.
• Europe's grid challenge is being driven by electrification, renewable integration, industrial competitiveness and rising data-centre demand, with the European Commission estimating EUR 584 billion of grid investment this decade.
• Australia's challenge is being shaped especially by high rooftop-solar penetration, household batteries, two-way power flows and distribution-level operational complexity.
• The most attractive grid investments may be those that create usable capacity faster, defer reinforcement and help network operators get more from the assets they already own.
Executive summary
Power grid investment has moved from background infrastructure to a front-rank investment theme. Electrification is accelerating, renewable generation is becoming more distributed, load growth is becoming less predictable, and data centres are emerging as a strategic new source of demand. At the distribution level, voltage excursions, phase imbalance, congestion and power-quality issues are becoming harder to ignore.
For investors, this changes the nature of the opportunity. The question is no longer only how much new network needs to be built. It is also how quickly existing networks can be made to carry more usable capacity. Traditional grid reinforcement remains necessary, but it often struggles to match the speed and granularity of the challenge. Large grid upgrades can take years to approve and deliver. Many of today's constraints, by contrast, are local, dynamic and time-varying. They arise where EV charging clusters, rooftop solar exports, heat pumps, batteries and commercial loads meet parts of the network that were not designed for those conditions.
This is where a new investment category is becoming more relevant: grid-edge and distribution-grid optimisation technologies that can help unlock capacity without waiting for full reinforcement. These solutions matter because they may improve voltage control,phase balancing, power factor, power quality, hosting capacity and asset utilisation in ways that are operationally useful and economically attractive.
For Europe, the case is driven by scale, policy urgency and industrial competitiveness. For Australia, it is driven by the real-world demands of a highly decentralised, rooftop-solar-heavy electricity system. Different contexts, same conclusion: the next priority ingrid investment is not just more network, but more productive network.
For Third Equation, that creates a relevant strategic opening. The ESB project definition frames NEx around voltage control, harmonic reduction, phase balancing, power factor correction, remotemonitoring and predictive control, with a stated aim of increasing grid capacity by up to 20 percent and generating measured trial evidence for futurenetwork investment decisions.
Why grid investment is shifting from reinforcement to capacity optimisation
For decades, the default answer to network stress was straightforward: reinforce the grid. Build more lines, larger assets and more physical capacity. That logic still holds in many cases, but it is becoming incomplete.
The emerging grid problem is not purely about absolute under build. It is also about where, when and how capacity is constrained. Distribution networks are being asked to absorb more variable generation, more localised demand spikes and more two-way power flows. Many bottlenecks now appear at the feeder, substation or low-voltage level rather than only at system scale.
From an investor perspective, this creates a more nuanced hierarchy of capital allocation. Some problems still require conventional reinforcement. Some require digital visibility and orchestration.Some require local hardware and software that can improve hosting capacity and power quality. Many require a combination of all three.
This is why capacity optimisation is becoming more important. Investors are increasingly drawn to technologies that can defer reinforcement, accelerate connections, improve asset productivity, reduce curtailment, improve customer outcomes and fit inside regulated utility economics. That is a stronger investment story than 'another smart-grid product'. It frames the opportunity around return on existing network capital.
What Europe and Australia have in common
Despite their different market structures,Europe and Australia are converging around five common drivers.
First, electrification is increasing the need for distribution-grid investment. As transport, heating and parts of industry electrify, more stress falls on electricity networks and much of that stress materialises locally at the point of connection.
Second, renewable integration is shifting grid complexity closer to the edge. Both markets are moving toward more variable renewable generation, creating balancing, voltage and power-quality challenges that transmission alone cannot solve.
Third, distribution networks are becoming strategic infrastructure. What used to be treated as the quieter downstream part of the system is now where many of the most urgent operational issues appear. That makes distribution-grid investment far more strategically important.
Fourth, investors want faster deployment and greater capital efficiency. A solution that can be retrofitted faster than a full reinforcement project may create value sooner and with lower execution risk.
Fifth, AI and digital infrastructure are tightening the capacity narrative. Even where the immediate issue is not a data centre, the wider market story is changing. Power availability is increasingly linked to economic growth, digital infrastructure and industrial competitiveness.
Europe: scale, policy urgency and fragmented execution
Europe's grid-investment case is shaped by three features: scale, policy urgency and fragmentation.
The scale is large and explicit. The European Commission has said that around EUR 584 billion of grid investment is needed this decade, with a substantial share required in distribution. ACER reported in April 2026 that annual distribution-grid investment rose to EUR35.3 billion in 2024 from EUR 23.5 billion in 2021 and is projected to approach EUR 47 billion in 2027. That is a clear signal that utilities and regulators are moving from diagnosis to spend.
Europe also increasingly treats grids as an economic competitiveness issue, not only an energy-transition issue. Delays in network modernisation risk slowing industrial electrification, renewable deployment, EV rollout and data-centre expansion. Ember has projected thatEuropean data-centre electricity demand could rise materially through 2030 and2035, reinforcing the strategic value of timely network capacity.
At the same time, Europe remains fragmented in regulatory practice. The investment need is continental, but procurement, network regulation and return frameworks are still national. For investors, that means opportunity exists at scale, but routes to adoption vary by country.The best-positioned technologies will be adaptable across multiple utility contexts and able to prove value in measurable, utility-relevant terms.
For Third Equation, Europe is attractive because the pain is real, the spending need is visible and the policy narrative already supports smarter use of existing network assets. The strongest positioning is not 'replace reinforcement', but 'help network operators improve voltage compliance, hosting capacity and asset utilisation while reducing the urgency or scale of some reinforcement needs'.
Australia: a live test bed for distribution-edge performance
Australia's distribution-grid story is unusually concrete because of its high penetration of rooftop solar and distributed energy resources.
The Clean Energy Council reported that more than a third of Australian households now have rooftop solar. Rooftop solar represented 12.4 percent of total electricity generation in 2024 and 14.2 percent in the second half of 2025. Australia is therefore not preparing for a decentralised power system; it is already operating one.
That has two direct implications.Operationally, distribution networks must manage reverse flows, local export congestion, fluctuating voltages and increasing pressure to coordinate customer-owned assets such as batteries and solar systems. Strategically, distribution businesses are becoming enablers of a two-way, consumer-heavy energy system. That makes distribution-network capacity, hosting capacity and asset utilisation especially important investment concepts.
AEMO's 2025 Electricity Network OptionsReport states that the distribution network will play an increasingly important role in linking consumers, rooftop solar, household batteries and other distributed resources into one integrated power system, and that new investment in these electricity networks will be essential to provide secure and reliable energy and enable a net-zero economy.
Australia also offers investors a relatively legible regulated-network setting. The Australian Energy Regulator remains central to return frameworks and expenditure allowances, which gives investors a clearer structure for thinking about value capture than in some more fragmented markets. For hardware-and-software solutions that improve low-voltage performance, Australia is not only a target market. It is a market that naturally demonstrates why grid-edge optimisation matters.
Why investors care about deferred reinforcement
Deferred reinforcement is, fundamentally, a capital-efficiency story.
If a network operator can avoid or postpone a larger reinforcement project by improving the productivity of existing assets, several sources of value may follow: lower near-term capital outlay, faster access to usable capacity, improved returns on existing regulated assets, reduced curtailment or export constraints, better customer outcomes and greater optionality while longer-term grid plans mature.
This is why the phrase 'capacity without reinforcement' is so powerful. It does not imply that reinforcement disappears.It implies that the sequence of investment can improve. Investors often preferpathways that create measurable value sooner and preserve strategicflexibility.
That matters particularly in markets where the backlog of network needs is growing faster than utilities can physically deliver conventional upgrades. In that context, technologies that help utilities get more from installed infrastructure become strategically important rather than merely interesting.
How NEx fits the investment theme
Third Equation's NEx is relevant because it appears to address a cluster of problems that investors and utilities increasingly recognise as linked.
According to the ESB project definition, NEx is intended to provide total voltage control at the substation, reduce harmonic content, improve phase balancing and power factor correction, support demand management through voltage control, and increase grid capacity by up to20 percent. It also includes remote monitoring and machine-learning-based prediction of grid conditions.
In investor language, that means NEx can bepositioned around increasing distribution-grid capacity, improving hostingcapacity, enabling deferred reinforcement, supporting voltage control atsubstations, improving power quality, increasing asset utilisation and helpingutilities create usable capacity faster.
That positioning is much stronger than describing NEx only in component-level technical terms. The right comparison is not NEx versus all reinforcement. It is NEx as part of a least-cost pathway to higher network capacity, better power quality and lower curtailment.
What investors should look for in grid-edge technologies
Investors assessing this category shouldask five practical questions.
Is the problem large and urgent? Across Europe and Australia, the answer is clearly yes. Distribution systems are under growing pressure from electrification, distributed energy and local power-quality issues.
Is the solution fast enough to matter? Grid-edge technologies are attractive when they can be deployed materially faster than full network reinforcement and solve local problems without waiting for a multi-year build cycle.
Does the value map to utility economics? The strongest solutions connect directly to utility pain points such as voltagecompliance, customer connections, hosting capacity, curtailment and asset productivity.
Can outcomes be measured? Technologies in this category become more investable when they produce data that supports procurement, regulation and rollout decisions.
Is the category strategically strengthening? Yes. Policy, regulatory and infrastructure signals all point toward greater interest in capacity optimisation, digital visibility and smarter use of existing assets, not less.
Conclusion
The long-term grid-buildout story is still intact. More wires, more substations and more traditional network capex will remain essential. But that is not the whole opportunity.
The more interesting investment theme now emerging is usable capacity. In both Europe and Australia, networks need solutions that help them do more with what they already own while larger reinforcement plans catch up.
That is why grid investment without reinforcement is becoming such a compelling narrative. It speaks to speed, capital efficiency, operational relevance and strategic fit. And it creates a clear space for companies like Third Equation to position NEx not as an optional add-on, but as part of the practical toolkit for modern distribution-network investment.
For infrastructure investors, the question is no longer simply who will build more network. It is also who will help make the existing network more productive.
Selected references
International Energy Agency, World EnergyInvestment 2025 executive summary; Electricity Grids and Secure EnergyTransitions executive summary.
European Commission, EU Action Plan forGrids fact sheet and Questions and Answers on the EU Action Plan for Grids.
ACER, Managing the ramp-up of electricitydistribution investments to enable decarbonisation and deliver an affordableenergy transition, April 2026.
AEMO, 2025 Electricity Network OptionsReport.
Clean Energy Council, Rooftop Solar andStorage Report, January to June 2025.
