July 24, 2026 — United States — A recent report from Ember reveals that Europe could integrate an additional 25 gigawatts of wind and solar capacity by leveraging existing grid connections at hydropower sites across seven EU countries. This finding underscores the critical role of grid infrastructure optimization in accelerating clean energy deployment, a lesson with direct relevance to the U.S. utility-scale solar and storage sectors.
Maximizing Existing Grid Assets
The Ember report highlights a significant untapped opportunity: expanding renewable capacity without the need for costly and time-consuming new transmission infrastructure. By co-locating wind and solar projects at existing hydropower sites, Europe can utilize already established grid interconnections, effectively sidestepping common bottlenecks in grid access. This approach not only expedites project timelines but also reduces the risk of “stranded” clean energy projects stuck in interconnection queues.
For the U.S., where interconnection backlogs and grid constraints remain a persistent challenge, the European example reinforces the value of strategic siting and infrastructure sharing. Hydropower facilities, pumped storage, and other existing grid assets can serve as anchor points for new renewable and storage projects, potentially unlocking capacity that would otherwise require new transmission buildout.
Interconnection Queues and Policy Implications
Elisabeth Cremona, Energy Infrastructures Lead at Ember, emphasized that political ambitions alone are insufficient if clean electrons remain stranded in connection queues. This statement resonates strongly with U.S. developers and utilities facing lengthy interconnection delays. Streamlining queue management, prioritizing projects that can leverage existing infrastructure, and enhancing grid planning processes are critical policy levers to accelerate clean energy deployment.
Recent U.S. policy discussions, including FERC’s moves to standardize large-load interconnections and reform queue processes, align with the need to reduce barriers to grid access. The European case further illustrates that infrastructure optimization can complement regulatory reforms, creating a more integrated and efficient pathway for renewables and storage.
Integrating Storage to Enhance Grid Flexibility
Complementing the European findings, recent developments in large-scale battery projects underscore the growing importance of storage in managing grid integration. For example, Swiss power firm Alpiq’s announcement of a 1.2 GWh battery project following its acquisition of Harmony Energy demonstrates how storage can be paired with renewables to enhance grid stability and capacity utilization.
Similarly, Masdar’s financial close on a 19 GWh battery energy storage system (BESS) in the UAE for a “round-the-clock” hybrid solar project reflects a global trend toward integrating storage at scale. These projects illustrate how storage can unlock the full value of renewable generation, particularly when grid constraints limit direct injection of clean power.
Community Solar and Distributed Opportunities
On the distributed generation front, Altus Power’s partnership with New Leaf Energy to develop five community solar projects totaling 32 MW in Virginia highlights the role of smaller-scale, grid-aligned solar portfolios. These projects, designed to serve shared solar programs, demonstrate how distributed renewables can complement utility-scale efforts by easing local grid pressures and expanding access to clean power.
Community solar initiatives also benefit from streamlined interconnection and grid integration strategies, reinforcing the broader theme of optimizing existing infrastructure to accelerate clean energy deployment.
What it means for U.S. utility-scale renewables and storage
The European example of unlocking 25 GW of clean power through existing grid connections offers a pragmatic blueprint for the U.S. utility-scale solar and storage market. First, it underscores the importance of identifying and leveraging existing grid assets—such as hydropower sites, substations, and transmission corridors—to reduce interconnection delays and costs.
Second, it highlights the complementary role of large-scale storage in maximizing renewable capacity and grid reliability. As seen with Alpiq and Masdar’s projects, integrating gigawatt-hour scale batteries alongside renewables can mitigate curtailment risks and provide flexible, dispatchable clean power.
Finally, the findings reinforce the need for coordinated policy and regulatory approaches that prioritize infrastructure optimization alongside queue reform. For developers, investors, and utilities, these insights suggest that a combined focus on strategic siting, storage integration, and streamlined interconnection processes will be essential to meeting U.S. clean energy goals efficiently.
Sources
CleanTechnica — Europe Can Unlock 25 GW of Clean Power by Using Existing Grid Connections (report on leveraging hydropower grid assets), July 24, 2026. (CleanTechnica)
Energy Storage News — Alpiq follows Harmony Energy acquisition with 1.2GWh project announcement (large-scale battery project in Switzerland), July 24, 2026. (Energy Storage News)
Energy Storage News — Masdar reaches financial close on ‘round-the-clock’ hybrid solar project with 19GWh BESS in UAE (gigascale storage integration), July 24, 2026. (Energy Storage News)
CleanTechnica — Altus Power Partners with New Leaf Energy on Development of 5 Community Solar Projects in Virginia (community solar portfolio development), July 27, 2026. (CleanTechnica)
