€100 Billion Worth of Clean Energy Is Stuck in Europe's Outdated Grid, Some Communities Have Been Waiting Years

Europe needs clean energy. Europe is investing billions in clean energy. But getting that energy from where it is produced to where it is consumed has become an "absolute obstacle course." More than €100 billion worth of renewable projects are stuck in Europe's outdated energy grid, waiting years just to connect.

A new report by consulting group AFRY, commissioned by the non-profit Beyond Fossil Fuels, found that 375 gigawatts of clean energy projects and 455 gigawatts of battery storage projects are trapped in distribution grid queues across the continent. To put that in perspective: a single gigawatt can power approximately 876,000 households annually.

Without intervention, the report – which analyzed Bulgaria, Czechia, Germany, Greece, Italy, Poland, Spain, and Great Britain – warns that Europe risks "deepening" its reliance on volatile fossil fuels. Despite Europe's renewable boom, which saved the EU €51 billion last year by lowering oil and gas imports, almost 29 percent of the bloc's electricity mix still comes from fossil fuels.

Why is the grid so congested? Because Europe's energy grid was originally built for coal, and later gas – fuels that flow from centrally located plants. But wind and solar farms are often located in remote areas, offshore, or on rooftops. Distribution system operators, who transport electricity to homes and businesses, were never designed for this.

The European Commission presented its European Grids Package in 2025, pledging €1.2 trillion in grid investments by 2040, along with more than 500 GW of new renewables capacity. The package includes strategic "energy highways" to address eight key bottlenecks, including connecting electricity across the Pyrenees to better integrate the Iberian Peninsula, ending electricity isolation between Cyprus and continental Europe, and strengthening Baltic States' interconnections to boost energy independence from Russia.

But Beyond Fossil Fuels argues the package does not fully address key distribution-level bottlenecks and "could go further." "Networks are the critical enabler," says Chiara Natalicchio, a senior consultant at AFRY. "They ultimately decide whether new resources translate into usable value."

In Germany, an energy community has been waiting for more than two years to connect rooftop solar across a multi-building housing complex – despite already securing investment. Slow digitalization and distribution-level grid constraints are causing the delay, the report says. Anna Leidreiter of BürgerEnergie Nord notes that solar panels directly benefit people's wallets – but distribution grid operators must upgrade their IT systems first.

In the Spanish municipality of Terrassa, grid capacity limits are preventing rooftop solar on public buildings and shared clean energy projects. "Trying to connect renewable energy projects has become an absolute obstacle course," says Pau Sales, Environmental Technician at Terrassa Municipality. "Ongoing delays waste both time and public money."

British social housing provider Together Housing planned to install 1,500 heat pumps a year to lower tenants' heating costs. Tenants already using heat pumps save £250 (€288) annually, but distribution-level constraints have slowed the rollout. "Our progress is being constrained by under-resourced distribution network operators and limited grid capacity," says Gemma Voaden of Together Housing.

Battery storage systems – which store surplus energy instead of forcing solar and wind farms to shut down – are seen as a key solution. The EU's battery fleet has increased tenfold since 2021 to more than 77 gigawatt-hours. But the capacity of battery storage projects stuck in grid queues in Germany, Britain, and Poland already exceeds double those countries' 2030 battery storage targets.

"Delays are costing consumers and the energy transition through curtailed renewable energy, reliance on expensive backup power, and inefficient grid operations," the organization warns.

For now, Europe has the ambition, the investment, and the technology. What it lacks is a grid that can keep up. Tens of billions of euros are waiting in line. So are the communities that need clean energy the most. The sun is shining. The wind is blowing. And somewhere in a queue, a solar panel is sitting idle – because the wires to carry its power have not been built yet. That is not a technology problem. That is a planning problem. And until Europe fixes it, the queue will only get longer.