Grid-scale batteries face growing interconnection delays nationwide
KEY DEVELOPMENTS
- Battery Storage Projects Stall in Interconnection Queues: Large-scale battery storage systems across the U.S. face mounting delays connecting to the grid, threatening project economics and renewable energy integration timelines, per Bloomberg. Read More: Bloomberg.
- Nvidia Weighs $3B Investment in SB Energy: The chipmaker is considering a $3 billion stake in SB Energy tied to an OpenAI data center deal, linking AI infrastructure buildout directly to energy development, Reuters reports. Read More: Reuters reports.
- Libertarian Candidate Targets Pipeline Tax Credits in Iowa: Thomas Laehn calls for ending federal tax credits for carbon dioxide sequestration pipelines, including Summit Carbon Solutions' project, and opposes eminent domain for pipeline construction, per Iowa Capital Dispatch. Read More: Iowa Capital Dispatch.
- 60 Largest Planned Data Centers Could Match 27 Coal Plants: A Financial Times analysis finds the carbon emissions from the biggest planned data centers globally could equal the output of 27 coal-fired power plants annually, raising questions about clean energy procurement, per FT. Read More: FT.
- Solutions Project Maps Community Climate Resilience: The nonprofit launched a platform tracking community-led adaptation projects across California, Texas, Florida, Puerto Rico, and the Northern Mariana Islands, per CleanTechnica. Read More: CleanTechnica.
Solar & Storage
The U.S. battery storage sector hit 52 GW of installed utility-scale capacity earlier this month — a figure that has grown at a 70% compound annual rate over three years. But the industry's next phase of growth is running headlong into an infrastructure wall. Bloomberg reports that big battery projects are stuck waiting for grid interconnection, a bottleneck that has plagued solar and wind developers for years and is now ensnaring storage with increasing severity.
The problem matters because battery storage isn't just another generation resource queuing up for grid access. It is, in many markets, the enabling technology that makes intermittent solar and wind dispatchable. When a 300 MW battery project like the Nighthawk system that Arevon brought online in California this month actually reaches commercial operation, it can reshape local grid economics. When hundreds of similar projects sit idle in queue, grid operators lose a tool they are counting on for reliability — and developers burn through capital carrying costs on projects that generate no revenue.
This week's interconnection reporting also needs to be read alongside the PJM queue data that surfaced earlier this month: natural gas grabbed nearly half the capacity in PJM's first reformed interconnection cycle, suggesting that even where queue reform is underway, gas is well-positioned to exploit the new rules. For storage developers, the competitive dynamic is straightforward — every year a battery project waits in queue is a year a gas peaker can fill the gap.
The demand side of the equation is intensifying, too. Nvidia is considering a $3 billion investment in SB Energy as part of an OpenAI data center deal, Reuters reports. The scale of the investment signals how seriously hyperscalers and their chip suppliers are treating energy procurement. SB Energy, the U.S. clean energy arm of SoftBank, already has a substantial portfolio of solar and storage assets. A $3 billion infusion tied to AI data center load would make it one of the largest single energy investments driven by the artificial intelligence buildout.
That deal comes into sharper focus against a Financial Times analysis showing the 60 largest planned data centers worldwide could emit carbon equivalent to 27 coal plants annually. The carbon math depends entirely on whether those facilities run on clean power or fossil generation — which loops back to the interconnection question. If battery storage and solar can't connect fast enough, data centers will either delay construction or contract with gas-fired plants to meet their load.
Policy & Markets
In Iowa, Libertarian candidate Thomas Laehn is calling for an end to federal tax credits that support carbon dioxide sequestration and low-carbon fuel pipelines. The target is clear: Summit Carbon Solutions, which has been trying for years to build a large-scale CO2 pipeline network across the Midwest. Laehn is also taking aim at the use of eminent domain for pipeline construction, a flashpoint that has generated fierce opposition from Iowa landowners across the political spectrum.
The pipeline debate in Iowa cuts across familiar partisan lines. Conservative rural landowners who generally oppose government overreach have found common cause with environmental groups skeptical of carbon capture as a climate strategy. Laehn's position — ending the federal subsidies that underwrite these projects — adds a libertarian critique to an already crowded field of opposition. For clean energy professionals tracking carbon capture policy under the Trump administration, the Iowa fight is a useful barometer: even projects that enjoy federal tax support face intense local resistance when they require seizing private land.
On the community resilience front, the Solutions Project has launched a new website mapping climate adaptation work in some of the country's most vulnerable regions. The projects span California, Texas, Florida, Puerto Rico, and the Northern Mariana Islands — a geography that reads like a list of recent extreme weather hotspots. The platform showcases community-led approaches to climate resilience, an increasingly important complement to the large-scale infrastructure investments that dominate clean energy policy discussions. For developers working in these markets, understanding local resilience priorities can smooth community relations and inform project siting.
LOOKING AHEAD
- FERC Interconnection Reform Fallout: With battery storage projects jammed in queues and gas capturing large shares of reformed cycles like PJM's, watch for pressure on FERC to further accelerate queue processing — and for storage developers to push for technology-specific carve-outs.
- Data Center Energy Deals Accelerating: Nvidia's potential $3 billion investment in SB Energy signals a new phase where chip companies, not just cloud operators, are making direct energy bets. More announcements tying AI infrastructure to clean energy assets are likely in the weeks ahead.
- Summit Carbon Solutions Pipeline Permitting: Iowa's pipeline fight remains one of the most consequential land-use battles in Midwest energy. State regulatory decisions and ongoing eminent domain disputes could set precedent for carbon capture infrastructure nationally.
TODAY'S QUICK ANSWERS
Q: What does the battery storage interconnection backlog mean for grid reliability planning?
A: Grid operators are increasingly counting on storage to provide peaking capacity and ancillary services as coal plants retire. With U.S. battery capacity at 52 GW and growing 70% annually, the pipeline is enormous — but projects that can't connect can't dispatch. Utilities and grid operators may be forced to extend the lives of fossil plants or approve new gas generation to cover the gap, which directly undermines decarbonization timelines and could raise consumer costs.
Q: Why should clean energy developers pay attention to Nvidia's potential $3 billion SB Energy investment?
A: It marks a shift from hyperscalers signing power purchase agreements to technology companies making direct equity investments in energy platforms. That changes the capital structure for developers: instead of competing for offtake contracts, they may soon be negotiating joint ventures with chip companies and AI firms that need guaranteed power supply. The deal also signals that data center energy demand is large enough to justify investments at a scale usually reserved for utilities.
Q: What should developers watch in Iowa's pipeline eminent domain fight?
A: The outcome will test whether federal tax credits alone are enough to push large infrastructure projects through hostile local politics. If eminent domain opposition succeeds in blocking or significantly delaying Summit Carbon Solutions' pipeline, it sets a precedent that could affect siting for any linear energy infrastructure — including transmission lines that clean energy projects depend on.
THE BOTTOM LINE: The interconnection bottleneck is no longer just a solar and wind problem — it is now the binding constraint on battery storage deployment, and until queue reform catches up to the 52 GW already installed and the hundreds of gigawatts waiting behind it, the gap between clean energy ambition and grid reality will keep widening.