By Steve Capanna, Director of Policy, Crux Alliance
Renewable energy deployment has grown exponentially in countries around the world over the last decade. Solar and wind are now the fastest-growing sources of electricity generation in history, and renewable electricity is on track to deliver nearly 45 percent of global power by 2030. Electric vehicles, heat pumps, and industrial electrification are accelerating faster than most predicted just a few years ago.
But there’s a problem: the infrastructure connecting clean energy supply to electrified demand isn’t keeping pace.
Power grids—the poles, wires, transformers, and systems that deliver clean electrons from solar arrays and wind farms to the buildings, vehicles, and factories that need them—are becoming a critical bottleneck to decarbonization.
The consequences of delay
We’re already seeing warning signs. In Germany and the Netherlands, grid infrastructure is failing to keep up with the transition, leading to delays or outright refusals for new renewable connections. In Brazil and Vietnam, grid congestion is preventing clean electricity from reaching demand centers at certain times of day, leading to significant curtailment of clean energy that could otherwise power homes and businesses. The net effect of these challenges is higher system costs, which in turn, make the next set of renewable energy projects less cost-competitive.
These kinds of delays, missed opportunities, and inefficiencies are becoming increasingly common. According to the International Energy Agency, if delays in grid development persist, global power sector emissions in 2050 could be nearly three times higher than what’s anticipated under current country pledges. Grid bottlenecks are already limiting renewable integration and slowing electrification—two key pillars of any credible decarbonization strategy.
Why cross-sectoral collaboration matters
The challenge with grids is that solutions don’t fit neatly into a single policy domain. Grid modernization requires coordinated expertise across electricity systems, transportation planning, industrial electrification efforts, and building decarbonization strategies—each with its own technical requirements, regulatory frameworks, and stakeholder dynamics. For instance, to accommodate rapid growth in EV charging demand, grid planners need to know where and when charging will occur. With smart charging technologies and practices, they can better integrate more EVs, treating the vehicles as grid resources rather than just a drain. But that depends on EV owners and operators having ready access to public and home charging stations and being given the right incentives to enable flexible charging.
Designing and analyzing policy solutions for challenges that span sectors is precisely why the Crux Alliance exists. As a network of world-renowned policy centers—each with deep expertise in a specific sector—Crux can bring together the right minds to work in lockstep. Over the last few years we’ve launched cross-sectoral initiatives on heat pumps and hydrogen that have proved our hypothesis: our Alliance enables members to combine forces, generating impact greater than the sum of what any single organization could accomplish alone.
A cross-sectoral approach
That’s why the Crux Alliance is launching a Grid Modernization & Flexible Electrification initiative. This effort recognizes that grids don’t exist in isolation—they sit at the intersection of energy supply, industrial processes, transportation systems, and building infrastructure. In fact, grids connect so deeply across every sector that this is the first Crux initiative where every Alliance member is actively involved.
Led by Agora Energiewende in collaboration with the Regulatory Assistance Project, Agora Industry, ICCT, ITDP, GBPN, and CLASP, the first phase of the initiative will develop a comprehensive policy toolkit that will consolidate international best practices and provide practical guidance for policymakers and regulators seeking to modernize grids. It will address four critical dimensions of grid readiness:
Planning: How do policymakers proactively plan grid infrastructure that balances resilience, security, and cost-effectiveness while anticipating higher shares of variable renewables and rapidly growing demand?
Deployment: What policies can accelerate grid buildout through smarter finance, streamlined permitting, and improved supply chain management?
Operations: How can existing grid infrastructure be used more efficiently through state-of-the-art operational practices and flexible demand-side resources?
Institutional Foundations: How can governance be clarified, standards set, stakeholder skills enhanced, and social license strengthened?
Each of these pillars will be considered from both the power system perspective and through the lens of end-use sectors, ensuring that the recommended policies encourage both a modernized grid and accelerated deployment of flexible electrification technologies.
What’s next
This first phase focuses on consolidating existing knowledge, identifying best practices from frontrunner countries, and creating an accessible resource for policymakers, regulators, and utilities worldwide. The toolkit will address the full spectrum of barriers holding back grid modernization across a range of diverse jurisdictions—from high costs and lengthy permitting to deferred investments and outdated planning frameworks. It’s designed for real-world use, not as an academic exercise, but as actionable guidance that can be adapted to diverse institutional contexts and market structures.
We’ll deploy the toolkit internationally through Crux Alliance networks and in coordination with the Global Grid Catalyst and its partners, reaching decision-makers through targeted workshops, capacity-building programs for civil society organizations, and strategic communications to build public support for grid investments. To enable better understanding, key sections will be translated into priority languages.
This work represents more than just another policy document. It’s about equipping decision-makers with the integrated, cross-sectoral thinking needed to prevent grids from becoming the Achilles’ heel of the energy transition.
The path to a decarbonized energy system runs through the grid. Solving this challenge requires bringing together expertise across power systems, transportation, industry, and buildings—which is exactly what the Crux Alliance was built to do.