Fervo Energy disclosed that its Cape Generating Station 6 subsidiary entered a 396 MW power purchase agreement with Google Energy on August 26, 2026. The 15-year PPA covers energy products from Cape Station in Beaver County, Utah, split into four successive 99 MW sub-tranches with target commercial-operation dates beginning in Q3 2028. For procurement, that establishes 396 MW of contracted future generation. It does not establish 396 MW of operating generation, electricity already delivered to Google, or usable data-center load today.
The same filing says Fervo must offer Google an approximately 600 MW capacity expansion, but any expansion still requires Google to accept the offer and the parties to negotiate a mutually acceptable definitive agreement. Fervo’s public release calls the resulting scale nearly 1 GW, while the filing says total contracted enhanced-geothermal capacity would be not less than approximately 950 MW if the expansion proceeds, with a guaranteed commercial-operation date no later than June 2030. The expansion is therefore a future commercial state, not part of the current 396 MW contracted base.
What changed and what it means
Counting the PPA or approximately 600 MW expansion as usable power too early can overstate data-center energy capacity and hide construction, delivery and approval dependencies.
- Decision affected
- Classify the 396 MW as contracted future generation and move only evidenced tranches into delivered-power and usable-load assumptions as project and delivery milestones clear.
- Evidence in brief
- Fervo's SEC filing establishes an executed 396 MW, 15-year PPA in four 99 MW sub-tranches with target commercial-operation dates beginning in Q3 2028.
- What remains unresolved
- The public filing does not attach the full PPA or establish physical delivery, completed delivery-path approvals, expansion exercise or a finalized Utah Google data center.
- Next verification
- Track Cape Station financing, permits, SB 132 approvals, delivery configuration, tranche commercial operation and PPA delivery evidence before promoting MW into stronger capacity states.
Key takeaways
- The executed PPA is 396 MW, divided into four 99 MW sub-tranches with target commercial-operation dates beginning in Q3 2028.
- The approximately 600 MW expansion is not current contracted capacity; it still requires Google acceptance and a new definitive agreement.
- Fervo’s latest operating disclosure lists 3 MW operating at Project Red and 500 MW under construction at Cape Station, so the Google PPA should not be described as operating or delivered power today.
- Procurement should keep contracted generation, project deliverability, commercial operation, PPA delivery and usable data-center load as separate states.
What changed: a framework became a project-specific PPA
The change is more specific than a new sustainability partnership. Fervo’s March 19 Google Geothermal Framework Agreement contemplated up to 3 GW, but Fervo said that framework did not obligate Google to accept a project, execute a PPA or provide project financing. Google retained discretion over individual proposed projects.
The August 26 agreement moves one project out of that framework state. CGS 6 and Google Energy have entered an actual PPA for 396 MW at Cape Station, supported by parent guaranties from Fervo and Alphabet. That is sufficient to classify the amount as contracted future generation. The public filing does not attach the full PPA, however, so procurement should not invent undisclosed conditions precedent, termination tests, delivery remedies or acceptance mechanics and should not relabel the agreement as “fully unconditional.”
Keep 396 MW, the 600 MW option and operating capacity separate
| Figure | Current evidence state | What it does not prove |
|---|---|---|
| 396 MW | Executed 15-year PPA; four 99 MW sub-tranches; target CODs begin Q3 2028 | Operating generation, physical delivery or usable data-center load today |
| ~600 MW | Capacity expansion Fervo agreed to offer Google | Google acceptance, a signed expansion agreement or contracted expansion capacity |
| Not less than ~950 MW / nearly 1 GW | Potential contracted scale if the expansion proceeds | Current contracted capacity or a finalized data-center power requirement |
| 500 MW at Cape Station | Under construction in Fervo’s August operating disclosure | 500 MW operating, or 500 MW plus a separate additional 396 MW of physical plant |
| 3 MW at Project Red | Operating Fervo pilot in Nevada | Operating generation from Cape Station or delivery under the new Utah PPA |
The 500 MW construction figure and the 396 MW PPA describe different dimensions: one is a physical development state and the other is a commercial offtake state. Adding them together would double-count unlike measures. The same discipline applies to Fervo’s reference to “deemed delivered energy” in a specific reimbursement provision. A contractual deemed-delivery payment concept is not evidence that physical electricity has flowed.
A signed PPA sits upstream of delivered power
Finance Circuit’s recognition model should start with the contract but not end there. The useful procurement question is not whether the PPA exists; the SEC filing answers that. It is what evidence supports moving the same megawatts into progressively stronger operating assumptions.
| State | Evidence procurement should retain | Planning treatment |
|---|---|---|
| PPA signed | Executed agreement status, parties, quantity, term and disclosed delivery timetable | Contracted future generation |
| Project deliverability | Funding path, permits, engineering configuration, interconnection or alternative delivery path | Future supply with open dependencies |
| Generation commissioned | Commercial-operation evidence for the relevant generating tranche | Operating generation, not automatically customer-delivered power |
| PPA delivery started | Contractual delivery start plus the applicable metering, scheduling or settlement evidence | Delivered-power assumption for the supported quantity and period |
| Usable data-center capacity | Separate site, electrical and load-acceptance evidence for the data center that will consume or be matched to the power | Data-center load assumption, not inferred from the PPA alone |
This is a Finance Circuit analytical model, not Fervo’s or Google’s contractual stage terminology. It also stops before the downstream facility-acceptance decision. The existing data-center project-readiness gate addresses sponsor-capital, financing and construction-draw readiness; those project dependencies matter here only to the extent that they affect whether contracted generation can actually reach delivery.
What still has to happen at Cape Station
Fervo’s August 13 quarterly filing lists 500 MW at Cape Station under construction and only 3 MW of company operating capacity at Project Red. It says the first Cape Station power is expected in late 2026, approximately 100 MW of operating capacity is expected by early 2027, and the broader Phase II build is advancing toward 2028. Those are company schedules, not completed outcomes.
The same 10-Q said 79 of 80 governmental permits and approvals needed to commence Phase I commercial operations had been received, while 82 of 179 for Phase II had been received and 97 remained in process. Fervo said it did not then expect material problems with those pending administrative permits, but the filing still identifies permitting, construction and schedule risk. It also expects Cape Station Phase II to require about $2.2 billion of capital expenditures through 2028 and says it plans to seek a significant portion through project-level debt. Fervo links the availability of that financing to demonstrating firm deliverability under its offtake arrangements.
The Google PPA adds another delivery-path issue. The 8-K says the project is intended to use pathways authorized by Utah SB 132 but remains subject to relevant regulatory approvals. Fervo anticipates EGS plus additional energy resources could serve data-center load through a closed private generation system configured front of the meter or behind the meter, subject to further engineering feasibility and agency approvals. The filing also identifies interconnection and transmission availability as risks, and the reviewed public record does not establish a final interconnection or alternative-delivery approval for the Google 396 MW. Utah Code also makes connected-generation service subject to provider, capacity, system-information and, where applicable, FERC-tariff interconnection and commission requirements.
These are project and delivery dependencies identified in public records. They should not be presented as undisclosed PPA conditions unless the executed contract itself establishes that connection.
The 600 MW option and potential data center stay out of the base case
Fervo describes the 396 MW as a foundational building block for a potential Google data center in Utah and says final data-center plans remain subject to engineering feasibility, state and local approvals and commercial conditions. The reviewed primary record therefore does not establish a finalized Utah data-center development, site load or energization date.
Procurement can carry the approximately 600 MW expansion in a separately labelled scenario or option register, but not in the contracted-current column. The SEC filing requires Google acceptance and a mutually acceptable definitive agreement before that expansion becomes contracted capacity. Likewise, the potential not-less-than-approximately-950-MW relationship should not be converted into a present 1 GW procurement commitment.
What procurement can count now
- Count 396 MW as an executed future-generation PPA with a disclosed target delivery sequence beginning in Q3 2028.
- Keep the approximately 600 MW expansion and potential near-1-GW total outside the contracted base until the additional definitive agreement exists.
- Track Cape Station construction, permitting, financing and delivery-path approvals as dependencies, not as proof of PPA delivery.
- Do not treat Project Red’s operating Nevada power as evidence that the Utah 396 MW is already operating.
- Move a tranche into a delivered-power assumption only when commercial-operation and PPA delivery evidence support that quantity; move it into usable data-center load only after the downstream site can actually accept it.
The procurement record can therefore be precise today: 396 MW is contracted future generation, while the option, project completion, physical delivery and usable Utah data-center load remain later states. That distinction preserves the value of the signed PPA without turning a commercial commitment into electricity that has not yet been generated or delivered.
