On March 31, 2026, a report from the Energy Think Tank revealed a fact that does not align with narratives of progress: 120 gigawatts of planned renewable capacity in Europe risk not coming into operation by 2030. This is not a technical delay, nor a financing problem, but a physical bottleneck: the electricity grid is unable to transport the energy produced. The data is specific, measurable, and immediately connected to the system. It is not a projection, but a technical threshold that has been exceeded. The accumulation of unused energy is not simply a waste, but an increase in entropy in the system, an energy dispersed in an unusable form.
This scenario is not an exception, but a symptom of a structural misalignment between production and transmission. Solar and wind power projects have been approved, financed, and built, but the grid that should distribute them has fallen behind. The paradox is that the more we invest in production, the greater the risk of it being unused. The system is not inadequate: it is obsolete. The European electricity grid, designed for a centralized and predictable model, is unable to handle the decentralization, variability, and density of flows that characterize renewable energy. The problem is not the production, but the transmission capacity.
The Blocked Power: 120 GW of Energy That Doesn’t Arrive
The problem is not only technical, but also regulatory. The construction of new transmission lines requires approvals, impact assessments, and consultation procedures that can take years. While renewable energy projects are accelerated, the grid is held back by a bureaucratic process that has not kept pace with the speed of the transition. The Carbon Pulse report highlights that the deficit is not due to a lack of will, but to a system of approval that has not been reformed to manage the urgency. The grid, in this sense, is a logistical control node: whoever controls the transmission capacity controls access to the energy market.
The Technical Bottleneck: The Grid as a System Threshold
The electricity grid is not just a cable, but a complex system of transformers, transmission lines, and switching nodes. Its load capacity is determined by physical parameters: electrical resistance, thermal losses, heat dissipation capacity, and dynamic stability. When the power input exceeds the transmission capacity, a saturation phenomenon occurs. In thermodynamic terms, the system approaches a stability threshold, beyond which the flow stops or is interrupted. The 120 GW in question are not just numbers: they represent a power that, if injected into the grid, would generate an unsustainable electrical gradient, with consequent blackouts or irreversible damage to the plants.
The Tactical Lever: Investing in the Grid as a Switch Threshold
The immediate point of intervention is not the production, but the transmission. The solution is not to increase production, but to restructure the grid. The €1.4 trillion investment by 2040, announced by Tendersgo, is not a goal, but a project threshold. This investment must be distributed not only in new lines, but in flow management technologies: distributed energy storage systems, smart grids, and interconnection between countries. The load capacity is not increased only with more cables, but with greater system efficiency.
A concrete intervention is the modification of the activation thresholds for renewable energy projects. New plants could be required to integrate a power management system that limits the output when the grid is overloaded. This is not a brake, but a protection mechanism that prevents the accumulation of entropy. In addition, the use of AI technologies for forecasting demand and production could optimize flows, reducing the risk of overload. The switch point is not the production, but the control of the flow.
The Coexistence Strategy: The Cost of Change
The system cannot be redesigned in a year. The energy transition requires a compromise: to accept that part of the energy produced will remain unused until the grid is updated. This is not a failure, but a systemic cost. The investor who has built a solar plant cannot recover the cost if the energy is not sold. The battery manufacturer cannot increase capacity if there is no market for storage. The cost of change is measurable in terms of asset value: each unused GW reduces the economic value of a plant by approximately €10 million per year.
The compromise is therefore quantifiable: a 100 MW plant that produces 200 GWh per year but only sells 150 GWh, loses a margin of €1.5 million per year. This impact is direct and measurable. The system must adopt a performance indicator: the grid utilization rate (TUR), calculated as the ratio of energy produced to energy transported. A TUR below 75% indicates a critical bottleneck. The producer, the investor, and the policymaker must collaborate to reduce this rate, not to increase production. The cost is not only economic, but also the stability of the system: a TUR that is too low increases the risk of blackouts and reduces the resilience of the energy system.
Photo by Domenico Adornato on Unsplash
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