The $19 billion is the rent
The headline number needs to be taken apart first, because it is doing three jobs at once in most coverage. $19 billion is what Anthropic is contracted to pay over 20 years for 401 MW. Spread evenly, that is about $2.37 million per megawatt-year, or roughly $197 per kilowatt of critical IT load per month. It is not money Google has paid, lent or committed to pay.
Google's actual exposure is narrower and, for now, unpriced in public. Google's credit support is contingent on the contractual circumstances specified in the agreements. It is also not yet effective: each support agreement takes effect only when the final data hall under its corresponding lease commences. Deliveries are scheduled in phases from late 2027 through the second quarter of 2028, and rent begins on handover.
The intended benefit is a stronger financing profile. TeraWulf says the credit support improves its ability to pursue competitive long-term debt, but it has not disclosed the lenders, financing amount or resulting borrowing cost. The actual savings, if any, cannot yet be measured. Lenders pricing a 20-year promise from an unrated tenant can now price it partly against Alphabet's AA+ and Aa2 ratings instead. In blander language, TeraWulf's CFO Patrick Fleury says the support "strengthens the project's financing profile and our ability to pursue competitive long-term debt".
What it does not say is how much debt, from whom, or at what price. The financing is described as anticipated, and the construction price cap under the Fluor agreement is still being established. Anyone treating $19 billion as secured funding is reading a rent roll as a bank statement.
The chips are in the credit document, not the lease
The more consequential term is not in the press release at all. It is in the form of credit support agreement filed as an exhibit to the 8-K. Exhibit 10.1, §2.k obliges Anthropic and any affiliate to use only Google-approved tensor processing units in the building, for the entire term of the agreement. The accelerator restriction is a condition embedded in the credit-support document rather than a conventional hardware purchase agreement. The lease is a schedule to that agreement, not the other way round: the sublease is attached to the credit support agreement as its Schedule B-1.
That placement matters. A team reviewing the lease for the usual things — assignment, term, rent, quiet enjoyment — would find three data halls and nothing about hardware. The accelerator condition lives in the financing paper, where a chip decision becomes a credit condition. The same mechanism is written into the agreement's default clauses (§4): during the first six years after the support takes effect, Google cannot take the termination-fee exit — its rejection option — unless the Equipment Capacity Trigger occurs, which the agreement defines as the installed TPU pods being capable, when in operation, of consuming less than 50% of the tenant's critical power. If Google lets its decision window lapse in that period without the trigger, it is deemed to have assumed the lease. The silicon in the hall decides which default Google gets.
Under §2.k, Google has exchanged contingent credit support for a contractual condition that directs the tenant's accelerator choice toward Google-approved TPUs. That would give Google a potentially valuable position in a large data-center deployment without requiring it to provide the $19 billion in lease payments itself. The support terminates when Anthropic, or an affiliate guaranteeing its obligations, maintains the specified investment-grade ratings for at least three months. By then, the facilities may have been operating with Google-approved TPUs for some time. Introducing another accelerator supplier across a large, operational data center would involve substantial engineering and infrastructure work, not simply a change in purchase orders.
If it goes wrong, Google can end up owning the building company
The default path in the filed agreement gives Google two main options. It can step in as tenant and assume the lease, paying the rent itself. Or, in specified circumstances, Google can pay a termination fee and elect an equity interest in Raylan Data LLC, the project-landlord subsidiary of TeraWulf. The stake is proportional: the fee divided by the total cost of developing and building the facility, including land, infrastructure, equipment and financing (§4.e). A termination payment equal to 30% of total project cost would therefore bring a 30% stake in Raylan.
Note what that stake is not. It is not a stake in TeraWulf Inc., the listed company. Google would own part of a single-project vehicle, which is another way of saying its downside protection is the asset itself. One possible outcome under the specified termination-fee mechanism is that Google acquires an equity interest in the project subsidiary. That could leave it with an ownership position in the same infrastructure whose financing support was intended to protect it.
What is still missing
Three gaps decide how much of this is real. The debt has not been disclosed, so the saving the backstop produces cannot be measured. The guaranteed maximum price for building the campus is still being set, so the $19 billion of rent has no public construction cost to set against it. And the whole structure is contingent on delivery: no halls, no rent, no effective backstop. The first test is not financial. It is whether CB-1 is ready in late 2027.
Sources
- [1] TeraWulf Inc. (primary), Form 8-K, Exhibit 10.1, Form of Credit Support Agreement, November 4, 2026, SEC accession 0001628280-26-069810 (read first-hand in full at Gate 1: §2.k obliges the tenant and any affiliate to use only Google-approved tensor processing units for accelerator processors in the Premises for the entire term of the agreement; §4.a sets the CSA Effective Date at the commencement date of the last data hall; §4 bars Google from exercising its rejection option within the first six years after that date unless the Equipment Capacity Trigger occurs, defined as installed TPU pods capable, when in operation, of consuming less than 50% of the tenant's critical power; §4.e sets the termination-fee-to-equity quotient for Raylan Data LLC; §12.b terminates the agreement when the tenant, a successor parent or a subsidiary holds specified investment-grade ratings for at least three months, subject to a guarantee requirement; the lease is attached as Schedule B-1)Read source
- [2] TeraWulf Inc. (primary), Form 8-K, November 4, 2026, SEC accession 0001628280-26-069810, Item 1.01 and Exhibit 99.1 press release, "TeraWulf Secures Google Credit Backstop for Project Financing in Support of $19 Billion Anthropic Lease; Executes Definitive Fluor EPC Agreement" (read first-hand in full at Gate 1: July 2026 20-year lease for about 401 MW of critical IT load; premises CB-1, CB-2 and CB-3; rent commences on delivery of each data hall; three credit support agreements signed November 4, 2026; backstop effective at each lease's final data hall commencement; termination on payment default or insolvency event; Fluor definitive EPC agreement on a guaranteed-maximum-price basis, with guaranteed maximum pricing still being established; phased completions from late 2027 through Q2 2028; Alphabet senior unsecured debt rated AA+ by S&P and Aa2 by Moody's)Read source
- [3] CoinDesk, "Google could take ownership stake in bitcoin miner TeraWulf's AI project if Anthropic defaults", November 5, 2026 (read by the desk: its description of the six-year assumption mechanism and its worked 30% example track the filed agreement's §4 provisions verified first-hand above)Read source
- [4] Mosaic Singularity, "Google's rent backstop picks the silicon until Anthropic can borrow alone", November 5, 2026 (section-by-section reading of Exhibit 10.1 that first surfaced §2.k; verified against the filed agreement at Gate 1)Read source