For decades, brownfield industrial sites have been treated by real estate markets as a discount category — value-impaired land carrying environmental liabilities, regulatory friction, and execution risk. That valuation logic is now breaking down. The class of buyers entering the market for former energy sites is qualitatively different from the redevelopers of a decade ago, and they are bringing a fundamentally different underwriting model.

The new entrant is the hyperscale data center developer.

What hyperscalers actually need

A 250-megawatt data center campus does not need a beautiful site. It needs power. Specifically, it needs interconnection capacity at scale, delivered on a timeline that aligns with capital deployment plans, in a regulatory environment that allows construction to begin. By 2030, the dominant constraint on data center growth in North America will not be capital or chips. It will be interconnection.

Former power plant sites solve this constraint better than almost any alternative.

Interconnection. A retired power plant retains its switchyard, its transmission interconnect, and its place in the local interconnection queue — assets that are, by an order of magnitude, the longest-lead-time inputs to greenfield power infrastructure development. A buyer acquiring a 500MW former coal site is, in effect, acquiring a 500MW interconnection allocation that would take five to eight years to replicate elsewhere.

Water rights. Cooling-intensive industrial loads — data centers among them — require predictable, permitted water sources. Power plants were sited around them. The water rights, permits, and intake/discharge infrastructure are part of the asset.

Rail and road access. Coal plants were almost universally sited with heavy industrial logistics in mind — rail spurs, oversized road access, staging yards. These attributes translate directly to construction logistics for any large industrial buildout.

Workforce and regulatory familiarity. Communities that hosted power plants understand industrial activity. The political economy of redevelopment is materially easier than greenfield siting in an unfamiliar community.

The friction is technical, not strategic

The barrier to capturing this value is not whether the deal makes sense. It is whether the buyer can underwrite the technical work between acquisition and shovel-ready.

That work includes:

  • Demolition of legacy generation infrastructure
  • Hazardous material abatement (asbestos, PCBs, fuel oil, coal combustion residuals)
  • Site characterization and Phase II/III environmental assessment
  • Remediation to commercial standards under state and federal programs
  • Interconnection re-rating studies and equipment specification
  • Local permitting and stakeholder engagement

For a hyperscale buyer, executing this work in-house is operationally non-viable. The internal teams are not staffed for it. The result is that hyperscalers are increasingly seeking operating partners who can deliver remediated, interconnection-ready sites — on contract, on schedule, with bounded environmental tail risk.

Pricing the option

The mispricing in the current market is in the valuation of interconnection capacity itself. Most former power plant transactions are still being negotiated on real estate comps — dollars per acre, adjusted for remediation cost. That framing systematically undervalues the interconnection allocation, which we estimate is worth $300–800 per kilowatt depending on the ISO and the queue position.

A 500MW interconnection allocation on a former coal site, valued at $500 per kilowatt, represents $250 million of standalone value. That number does not appear in any conventional brownfield underwriting model.

It is, increasingly, the number that matters.

The thesis in operation

Genover’s industrial real estate practice operates with the conviction that interconnection is the scarcest commodity in the American industrial transition, and former energy sites are where it sits. We acquire, remediate, and reposition these sites with the engineering, regulatory, and capital discipline required to deliver them as buildable to the buyers who need them most.

The category that the market calls "brownfield" will, over the next decade, be the category that the market calls strategic.