Data Centres
PublicTracking the latest news on data centres.
FERC orders grid fix; California halts giant data center
Friday, Jun 26, 2026
Federal regulators and local governments are simultaneously tightening the rules on data center growth: FERC ordered six grid operators to fix interconnection rules, while a California county reversed approval of a massive AI facility amid public backlash and a top House Democrat called for a national moratorium.
Meanwhile, Microsoft pushes ahead with 15 more data centers in Wisconsin, and FuelCell Energy stocks jumped 16% on a 380 MW clean-power deal—highlighting the tension between surging AI-driven demand and rising regulatory, cost, and environmental pushback.
Tracking: Data Center · Data Centre
1. FERC orders six grid operators to fix data center interconnection rules
The Federal Energy Regulatory Commission issued show cause orders to six regional grid operators, declaring their large-load interconnection rules inadequate for the surge in data center development.
FERC identified five issues—including cost allocation and transparency—that each RTO/ISO must address with region-specific solutions rather than a national standard.
Chairman Laura Swett called the action "historic" to ensure fair cost allocation and speed to power. Data center developers now face varying risks across regions, while regulated utilities gain clearer cost-recovery frameworks.
Key facts:
- FERC issued show cause orders to CAISO, ISO-NE, MISO, NYISO, PJM, and SPP.
- The orders address five specific issues in large-load interconnection rules.
- Each region must develop its own interconnection rules instead of a uniform standard.
- The decision followed a wave of data center development over the past two years.
- FERC warned it would dictate solutions if RTOs fail to address concerns.
Why it matters: This ruling shifts data center interconnection from a vague national landscape to six distinct regional regimes, benefiting ratepayers through transparency and cost clarity while forcing developers to assess varying tariff risks.
Utilities gain a clearer framework for who pays for infrastructure and for how long. The next watchpoint is how each region's filing handles co-location and flexible load service, as FERC has signaled it will impose its own rules if they fall short.
2. California county halts massive data center after public backlash
In April, Imperial County Supervisors approved the Imperial Data Center, a nearly one-million-square-foot hyperscale facility designed for AI and machine learning.
It would have been the largest data center in California, promising 2,500 construction jobs and $72. 5 million in one-time sales tax.
Last week, the board reversed course, enacting a 45-day moratorium on data centers and forming a public commission to advise on zoning.
The developer, Sebastian Rucci, said he is filing a lawsuit seeking a temporary restraining order, arguing the moratorium is defective and not based on a genuine emergency.
Key facts:
- Imperial County Supervisors approved the data center in April.
- The facility is nearly one million square feet, the largest in California.
- The parent company is Imperial Valley Computer Manufacturing, LLC.
- The project would generate 2,500 construction jobs and 100 permanent jobs.
- Promised tax revenue: $72.5 million one-time sales tax, $28.7 million annual.
Why it matters: This conflict highlights growing local resistance to the rapid buildout of AI infrastructure, especially in rural, working-class communities that bear the environmental and resource costs.
The outcome of the developer's lawsuit and the county's new zoning commission could set a precedent for how California counties regulate hyperscale data centers.
If the moratorium holds, other tech firms may face slower permitting in similar areas, while the developer risks significant investment losses.
3. Microsoft finishes Mount Pleasant data center, plans 15 more
Microsoft has completed construction of its first data center in Mount Pleasant, Wisconsin, a 315-acre facility now fully operational and employing nearly 550 full-time workers.
The company is already building a second center next door, set for completion by 2028, which could bring total local employment to 800.
In January, the Mount Pleasant village board approved site plans for up to 15 additional Microsoft data centers on the campus over the next decade.
The project, part of a broader wave of data center construction across the Great Lakes region driven by AI demand, has faced pushback in some Wisconsin communities over energy and water use concerns.
Key facts:
- Microsoft completed its Mount Pleasant data center, now fully operational.
- The 315-acre facility employs nearly 550 full-time workers.
- A second data center is under construction, set to finish by 2028.
- Up to 15 more Microsoft data centers are planned on the campus.
- The village board approved site plans for those future data centers in January 2026.
Why it matters: This completion marks a major step in Microsoft's expansion in the Midwest, bringing hundreds of jobs and positioning Mount Pleasant as a regional data hub. The planned 15 additional centers will transform the village's economy and strain local infrastructure.
Watch for community resistance over energy and water usage — similar pushback in other Wisconsin towns could shape future permitting and regulatory battles.
4. Top House Democrat Calls for National AI Data Center Moratorium
Energy and Commerce Committee Ranking Member Frank Pallone (D-NJ) opened a subcommittee markup on data center bills by demanding a national moratorium on AI data center construction, citing soaring electricity costs, grid reliability risks, and environmental harm.
He cited a Berkeley Lab projection that data centers could consume over 15% of U.S. electricity by 2030 and a mid-Atlantic grid operator’s estimate that ratepayers paid $9 billion last year for data center power.
Pallone noted that several New Jersey towns have already enacted local moratoriums, while New Brunswick blocked a data center project.
He dismissed a Big Tech “Ratepayer Protection Pledge” sought by President Trump as unenforceable and warned that FERC rulemaking will take months or years.
He also criticized Republican claims that Chinese influence drives opposition and highlighted fast-tracked EPA approval of PFAS chemicals for data centers.
Key facts:
- Pallone called for a national AI data center moratorium at an Energy Subcommittee markup.
- Data center energy consumption doubled from 2017 to 2023, per Pallone.
- Berkeley Lab projected data centers could use over 15% of U.S. electricity by 2030.
- Mid-Atlantic ratepayers paid $9 billion in 2024 for data center electricity.
- Towns including Asbury Park and New Brunswick have imposed moratoriums or blocked projects.
Why it matters: If enacted, a federal moratorium could halt billions in hyperscale investments, reshaping data center development timelines and supply chains.
It would pressure Big Tech and operators to adopt cleaner energy and address community opposition, but also risks slowing AI infrastructure expansion. Watch for bipartisan pushback and whether FERC’s forthcoming rules preempt state or local actions.
5. FuelCell Energy stock jumps 16% on 380 MW data center power deal
FuelCell Energy shares surged 16% on Wednesday after the company announced a strategic partnership with Fit Energy USA LP to supply up to 380 megawatts of clean power for data centers.
The deal includes an immediate deposit tied to an initial 30-megawatt deployment expected to begin later this year. Fit Energy will also receive warrants linked to future deployment milestones, incentivizing long-term collaboration.
The agreement supports the growing electricity demands of AI-driven computing and reinforces FuelCell Energy's plans to scale its production capacity to 500 megawatts.
Key facts:
- FuelCell Energy shares surged 16% on Wednesday.
- The partnership with Fit Energy covers up to 380 megawatts of clean power.
- An initial 30-megawatt deployment is expected to begin later this year.
- Fit Energy will receive warrants tied to future deployment milestones.
- FuelCell Energy is scaling operations to 500 MW total capacity.
Why it matters: This deal signals that data center operators are increasingly turning to alternative, behind-the-meter power sources like fuel cells to meet the surging electricity needs of AI infrastructure.
For FuelCell Energy, the partnership validates its expansion strategy and opens a new revenue channel in the hyperscale data center market. Investors should watch whether this leads to additional gigawatt-scale agreements as AI adoption accelerates.