Research Report | Data Center Infrastructure | October 2026
Figures below come from public industry sources cited in Section 9. Policy points marked "to verify" should be confirmed against primary documents before publication. For information only; not investment or legal advice.
1. Executive Summary
Power, not capital, is the binding constraint on AI data center growth. Brownfield sites (former factories, industrial zones and retired power plants) often come with grid connections, substations and cooling-related infrastructure already in place, which can shorten the path to energized capacity by years. In our view they are best understood as "powered land": a scarce asset whose value comes from secured megawatts rather than acreage.
The grid is the bottleneck. The JLL 2026 outlook cites about four years as the US average wait for utility power and about seven years for a 100 MW connection in Northern Virginia.
- Buildings are fast, power is slow. Per the IEA, a hyperscale campus takes 1–3 years from planning to commissioning, while the transmission, substation and transformer upgrades behind it can take 5–15 years.
- Brownfields can skip the queue, with caveats. Existing connections shorten timelines only if the capacity is still available, transferable and sized for data center load.
- Power strategy now equals site strategy. Developers increasingly act as energy developers, combining grid, on-site generation and storage.
2. The Power Bottleneck
- Average US wait for utility power: about 4 years (JLL 2026 Global Data Center Outlook, via ConstructionOwners)
- 100 MW connection in Northern Virginia: about 7 years (JLL 2026 Global Data Center Outlook, via ConstructionOwners)
- Interconnection wait, projects built 2000–2007 vs 2018–2024: under 2 years vs over 4 years (Berkeley Lab data, via Network World)
- Utility quotes to Google: 4–10 years, with one utility quoting 12 years just to study a request (Google, via Network World)
- Hyperscale campus build vs supporting grid upgrades: 1–3 years vs 5–15 years (IEA, via CBRE Investment Management)
- US developers naming energy availability as the top obstacle to 2030: 54% of 105 respondents (Foley 2026 Data Center Development Report, via Capacity)
- European operators naming power access as the top challenge: 67%, down from 76% (EUDCA 2026 report, via Capacity)
The pattern is consistent: demand for compute is scaling in months, while grid delivery scales in years. In Europe the same squeeze appears in extreme form. Denmark's grid operator Energinet paused new connection agreements on 2 March 2026 after requests reached about 60 GW against peak national consumption of about 7 GW.
3. Why Brownfields Are Winning
Existing power infrastructure. Industrial sites were built for heavy loads. High-voltage lines and substations may already exist, and law firm Linklaters notes that brownfield and industrial sites often carry existing grid connections.
Time to power. Greenfield projects can face multi-year waits for grid upgrades. A brownfield with usable capacity may energize 1–3 years sooner; this is the working range used in our market commentary and depends heavily on site and utility (to verify per project).
Lower capex. Reusing buildings, roads and electrical rooms avoids part of the cost of new substations and site works. Savings vary by site condition and remediation needs.
Permitting and local politics. Redevelopment of industrial land fits an "industrial revival" narrative and can face less community resistance than converting open land. Clark Hill's 2026 market update notes that state and local jurisdictions often tie economic development to brownfield or underused sites, while also weighing infrastructure strain.
Market recognition. Powered land is now priced as a hybrid asset. CBRE Investment Management reports premiums driven by pre-secured interconnection agreements, and other industry sources describe power-entitled sites trading at a significant premium to unentitled land.
4. The Power Moat
A power moat exists when a site holds secured megawatts that competitors cannot replicate quickly. For brownfields, the moat has three layers:
- Secured capacity. Existing connection agreements or active service from past industrial use.
- Optionality. Room to add on-site generation, storage or a second feed.
- Time advantage. Energization years ahead of rivals queuing for new service.
The moat is only as strong as the paperwork behind it. Capacity held by a retired plant may lapse, be reallocated or require fresh studies.
5. Beyond the Grid: Behind-the-Meter and Hybrid Power
Where grid capacity is thin, operators are pairing sites with on-site power:
- Gas turbines and fuel cells. Datacentres.com reports that fuel cells suit retrofits and brownfield sites where space or noise limits rule out large rotating equipment. Operators accept fuel-price exposure; Henry Hub has ranged from roughly $2 to $9 per MMBtu over three years.
- Batteries. Aligned Data Centers' Hillsboro campus uses on-site battery storage so it can come online years ahead of conventional grid upgrades, with operations planned for the second half of 2026.
- Co-location with generation. Hyperscalers are placing facilities next to power plants, a model that fits retired and active plant sites naturally.
Clark Hill notes that industry estimates see a meaningful share of incremental data center demand through 2030 being met behind the meter, and that standard utility agreements are giving way to on-site generation and energy-as-a-service structures.
6. Policy Environment
- Federal framework. CBRE Investment Management reports that the Ratepayer Protection Pledge, enacted in March 2026, set a federal energy self-sufficiency framework for large data center development. FERC has also directed final rules on large-load interconnection, with a target of 30 April 2026 reported in industry commentary (to verify current status).
- Brownfield incentives. Federal and state programs for industrial reuse, including tax credits and subsidies, can improve project economics (to verify by jurisdiction).
- Environmental streamlining. Reported US federal and EPA moves to speed redevelopment of contaminated land, including some Superfund sites, for data center and energy use (to verify against primary EPA and executive-branch documents before publication).
7. Risks and Limits
- Capacity is not guaranteed. A legacy connection may be smaller than modern AI campuses need (often hundreds of megawatts), expired, or tied to equipment at end of life.
- Contamination and liability. Remediation cost, timing and legal exposure can offset the capex advantage. Environmental due diligence is essential.
- Building fit. Old structures may not meet floor-loading, cooling or ceiling-height needs for high-density racks.
- Local opposition and grid stress. Utilities and communities increasingly scrutinise large loads even on industrial sites.
- Fuel and price risk. Behind-the-meter gas exposes operators to commodity swings and air-permit constraints.
- Resilience. Co-located or islanded sites change redundancy assumptions.
8. Conclusion and Site Screening Checklist
Brownfields are not a compromise. In an electricity-constrained market, they can be the fastest route to energized megawatts. The advantage is real but conditional, and the winners will be sites with verifiable, transferable power.
Before committing to a site, confirm:
- Existing interconnection capacity in MW, and whether it is transferable or still active
- Utility study status and realistic energization date
- Environmental assessment and remediation scope
- Structural and cooling suitability of existing buildings
- Gas, water and fibre access
- Air permits and local zoning status
- Incentives available for brownfield redevelopment
9. Sources
- ConstructionOwners: How Long It Actually Takes to Power a Data Center in 2026 (JLL 2026 figures)
- Network World: Google warns transmission delays are the biggest threat to data center expansion
- CBRE Investment Management: Powered Land (29 June 2026)
- Capacity: Powered land explained
- Clark Hill: 2026 Commercial Real Estate Market Update (23 April 2026)
- Datacentres.com: Behind-the-Meter Power (19 August 2026)
- Macquarie: Accelerating data centre interconnection
Note: sources include industry commentary and secondary summaries; figures should be checked against primary reports before external distribution. Market data reflects searches conducted 9 October 2026.
