Fairfield, Texas, population just over 3,000, sits along Interstate 45, surrounded by ranchland and nearly equidistant from Dallas and Houston. The 51.7-acre site is an unlikely place for a $1.5 billion data center campus. Yet that is precisely what CyrusOne is building — three massive computer halls rising speculatively, with no named tenant occupying a single square foot.
The permits filed earlier this month reveal two buildings already under construction and a third set to break ground next month. The total investment, according to local filings, approaches $1.5 billion. But the most important number — megawatts — is conspicuously absent. Every data center is power infrastructure with a roof. In Fairfield, the roof is a $1.5 billion question mark, because CyrusOne has not disclosed how many megawatts it plans to deliver, from which utility, on what timeline, or at what cost per kilowatt-hour.
That silence transforms this from a mere development into a high-stakes financial bet. CyrusOne, taken private in 2021 by KKR and Global Infrastructure Partners in a $15 billion buyout, operates under return expectations that differ sharply from a self-developing hyperscaler’s 3.5% weighted average cost of capital. Private equity funds demand mid-teen internal rates of return, usually within three to five years. Building a speculative campus with no pre-leasing puts enormous pressure on the developer to secure anchor tenants quickly — ideally investment-grade hyperscalers like AWS, Microsoft, or Google — at lease rates that justify the capital outlay. But hyperscalers increasingly prefer build-to-suit agreements or self-development in tier-one markets, where power procurement is more predictable. In a secondary location like Fairfield, between two major metros but not inside either, CyrusOne is betting that tenants will value lower land costs and proximity to fiber paths linking Dallas and Houston. Whether that bet pays off depends entirely on the power story that the company has not yet told.
The physical scale hinted at by a $1.5 billion price tag suggests a campus in the range of 200 to 300 megawatts, perhaps larger. At current construction costs of roughly $7 to $9 million per megawatt for shell space, the permit filings imply a substantial chunk of critical power infrastructure — generators, switchgear, cooling plants — is already being ordered. That means CyrusOne has likely signed a utility interconnection agreement or is deep in the queue. But in Texas, the Electric Reliability Council of Texas (ERCOT) grid is grappling with explosive load growth from data center development, with interconnection requests ballooning into the tens of gigawatts. Approval timelines are stretching, and transmission upgrades are increasingly paid for by the developer. Without knowing which utility serves the Fairfield site and what position CyrusOne holds in the queue, we cannot assess whether the power will be ready when the buildings are — or whether the entire pro forma rests on a contingency that the utility has stopped giving firm dates on.
Then there is the cost of power. Texas offers relatively cheap wholesale electricity, but exposure to ERCOT’s energy-only market means prices can spike dramatically, as they did during Winter Storm Uri. Data center tenants, particularly hyperscalers signing 10- to 15-year leases, demand price certainty and often insist on fixed-rate renewable energy PPAs to meet sustainability goals. CyrusOne would need to lock in such contracts to attract creditworthy tenants. If it hasn’t, or if the PPA pricing is too high relative to alternatives in, say, Northern Virginia or Phoenix, the campus could sit vacant.
The incentives for CyrusOne are clear: first-mover advantage in a new corridor. By establishing a massive campus early, the developer can create a captive market for hyperscale tenants seeking to avoid the congestion and power constraints of established markets. Fairfield’s location, roughly 90 miles south of Dallas and 150 miles north of Houston, positions it along the Dallas–Houston fiber route, which offers low-latency connectivity between two fast-growing economic hubs. If a hyperscaler needs to deploy capacity quickly in Texas, CyrusOne can offer a ready-to-rack solution before competitors break ground in more competitive locations.
But the risks are equally stark. A speculative campus of this size, if not leased within a year or two of completion, becomes a drag on the developer’s balance sheet. Carrying costs include debt service, property taxes, security, and maintenance on idle power infrastructure. More importantly, empty megawatts in a secondary market have almost no resale value outside of a highly discounted sale to a distressed buyer. Data center investors typically value assets based on stabilized net operating income; with no leases, the valuation would be based on replacement cost, which could be well below the $1.5 billion sunk.
There is a possibility that CyrusOne is building under an NDA with a hyperscaler that cannot yet be named. Some tenants prefer to keep site selection confidential until they have secured all necessary incentives and power agreements. If that is the case, the risk profile shifts entirely, and the project becomes a build-to-suit in all but public disclosure. However, the absence of any mention of a tenant in permit filings or local media suggests either a very tight NDA or a true speculative play. The market will watch closely for leasing announcements in the coming quarters.
The unresolved question is whether the Dallas–Houston corridor can absorb hundreds of megawatts of new supply in the next two years, given the concentration of hyperscale projects already underway in Dallas and the growing interest in Houston’s energy-proximate data center market. CyrusOne’s bet is that demand will spill over and that it can capture tenants who can’t get power or land at reasonable prices elsewhere in Texas. The counterpoint is that hyperscalers, with their deep pockets and in-house development arms, might prefer to wait for their own projects in more established zones rather than commit to a private equity-backed spec campus.
For now, the only certainty is dirt moving and steel rising in Fairfield. The real story — the electrons that will eventually flow into those buildings, the contracts that guarantee their price, and the tenants that will sign for the capacity — remains buried in interconnection queues and confidential commercial negotiations. Until CyrusOne discloses its power infrastructure details, the $1.5 billion price tag is just a number without a numerator.