← Constellation Energy Corporation (CEG)

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# Constellation Energy Corporation (CEG) — Narrative

Baltimore-headquartered owner-operator of electric generation and a competitive retail
energy supplier. Sources: the annual report on Form 10-K for the fiscal year ended
December 31, 2025 (accession 0001868275-26-000032); the quarterly report on Form 10-Q for
the quarter ended June 30, 2026 (accession 0001868275-26-000104); and current reports on
Form 8-K filed during 2026, cited individually below.

---

## Business

*From the FY2025 Form 10-K, accession 0001868275-26-000032, and updated for the completed
Calpine merger as described in the Form 10-Q, accession 0001868275-26-000104.*

Constellation generates electricity and sells electricity, natural gas and related energy
products and services to wholesale and retail customers across the United States. It makes
money in two linked ways: it runs a large owned generation fleet — nuclear first, then
natural gas, geothermal, hydro, wind and solar — and it sells the output, plus power it
buys in the market, to distribution utilities, municipalities, cooperatives and
commercial, industrial, public-sector and residential end users. The gap between what it
costs to produce or procure energy and what customers contract to pay for it is the
business.

Following the January 2026 acquisition of Calpine Corporation, the company describes
itself as the largest private-sector power producer in the world and the largest U.S.
producer of clean energy, with roughly 55 GW of capacity, output equivalent to powering
about 27 million homes, and roughly 10% of the nation's clean energy. It is the largest
nuclear operator in the United States and a leading competitive retail supplier, serving
approximately 2.5 million customer accounts nationwide, including 80% of the Fortune 100.

**The fleet as reported at December 31, 2025 (before Calpine).** Owned generating
resources totaled 31,676 MW, plus 4,798 MW of contracted generation procured under
unit-specific agreements. Within that: approximately 22 GW of nuclear, which produced
183 TWh in 2025; roughly 7 GW of natural gas and oil; and roughly 2.6 GW of hydroelectric,
wind and solar. Nuclear supplied 68% of total electric supply in 2025 (67% in 2024, 65% in
2023), gas and oil 6%, renewables 2%. The company holds interests in 14 nuclear generating
stations comprising 25 units, wholly owned except for undivided interests in Quad Cities
(75%), Peach Bottom (50%), Salem (42.59%), Nine Mile Point Unit 2 (82%) and South Texas
Project (44%). Salem and STP are operated by others.

**Segments.** Through fiscal 2025 the company reported five segments organized by
geography: Mid-Atlantic (10,386 MW, 33% of net generation capacity), Midwest (11,606 MW,
37%), New York (3,093 MW, 10%), ERCOT (4,742 MW, 15%) and Other Power Regions (1,849 MW,
5%). Beginning in 2026 a sixth reportable segment, Calpine, was added. Natural gas sales
and other activities not significant to results are reported under "Other" and not
allocated to a segment.

**What Calpine added.** After divestitures required for regulatory approval, the merger
added approximately 23 GW across 72 generation and battery storage assets, concentrated in
Texas, California and the Northeast. Calpine is the largest U.S. generator of electricity
from natural gas and geothermal resources: 21 GW of gas-fired generation, predominantly
combined-cycle; the Geysers Assets — 13 operating geothermal plants in Northern California
with roughly 730 MW of capacity, the largest geothermal portfolio in the U.S.; and roughly
800 MW of battery storage, largely in California. Calpine's retail platform adds
approximately 62 TWh of annual load and roughly 2,500 employees.

**Customer-facing business.** Constellation is active in all domestic wholesale power and
gas markets across the lower 48 states. In 2025 it served approximately 204 TWh through
retail sales and wholesale load auctions, of which roughly 147 TWh was retail electric load
(primarily commercial and industrial) and roughly 57 TWh was wholesale load across
competitive utility procurement and bilateral sales to municipalities and cooperatives. It
also served approximately 800 Bcf of gas in 2025. Renewal rates in 2025 were 77% for C&I
power customers and 84% for C&I gas customers; average C&I power contract terms run about
two years with customer duration of about six years. The company reports over 32% share of
the direct C&I market. Product lines include the CORe+ renewable-matching product, Hourly
Carbon-Free Energy, energy-efficiency offerings, the Constellation Navigator analytics
platform, and Constellation Technology Ventures, its venture investing arm.

**Long-term contracting with technology customers.** A 20-year PPA with Microsoft supports
the restart of Three Mile Island Unit 1, renamed the Crane Clean Energy Center, retired in
2019 for economic reasons and expected to provide roughly 835 MW of emissions-free
capacity. In November 2025 the DOE Office of Energy Dominance Financing issued a guarantee
for up to $1.0 billion for an unsecured loan from the Federal Financing Bank to support the
restart; the loan matures in 2055 and prices at 37.5 basis points over comparable-maturity
Treasuries at each advance. In June 2025 the company signed a 20-year PPA with Meta
Platforms for the output of the Clinton Clean Energy Center, beginning June 2027, which
supports relicensing and expands Clinton's output by 30 MW through uprates expected to be
complete in 2029.

**Hedging and price support.** Commodity price risk on the generation portfolio is managed
with wholesale and retail load sales, federal and state programs, and derivative and
non-derivative contracts. Portfolio hedging concentrates on the prompt three years. Since
2024 the existing nuclear fleet has been eligible for the nuclear production tax credit
enacted in the Inflation Reduction Act and maintained under the One Big Beautiful Bill Act:
a transferable credit of up to $15 per MWh that phases out as annual gross receipts rise
between $26.00 and $44.75 per MWh (2025 and 2026 thresholds), with the credit rising as
unit revenues fall. State programs — the New York Clean Energy Standard, the Illinois Zero
Emission Standard, the Illinois Clean Energy Law's carbon mitigation credits — provide
parallel support; the New Jersey program concluded in May 2025, and in January 2026 the New
York Public Service Commission approved a 20-year extension of its ZEC program through
2049.

**Regulation.** Subsidiaries that are public utilities under the Federal Power Act are
subject to FERC's exclusive ratemaking jurisdiction over wholesale power sales and
interstate transmission, including authority over market-based rates. Nuclear operations
are licensed and continuously overseen by the NRC, which also requires demonstrated
decommissioning funding assurance, met through dedicated nuclear decommissioning trust
funds. All nuclear units were originally licensed for 40 years and have received 20-year
renewals; Peach Bottom and Dresden have received subsequent renewals extending to 80-year
terms. Hydroelectric licensing sits with FERC: a new 50-year Conowingo license issued in
March 2021 was vacated in December 2022, and a September 2025 settlement with the Maryland
Department of the Environment and two riverkeeper organizations cleared the way to
resubmit the application. Spent nuclear fuel is stored on site — approximately 97,600
assemblies (23,900 tons) at December 31, 2025 — because no U.S. repository exists.

As of December 31, 2025 approximately 23% of employees participated in collective
bargaining agreements.

---

## Risk factors

*From the FY2025 Form 10-K, accession 0001868275-26-000032.*

The company groups its risks into market and financial, legislative/regulatory/legal,
operational, and Calpine-merger categories. The substantive ones:

**Commodity price and market design.** Earnings and cash flows are exposed to spot and
forward price variability on the unhedged portion of the portfolio and on fuel. Spot power
prices are generally set by the marginal fuel, usually natural gas. Supply markets for
nuclear fuel, gas and oil are subject to price swings, availability restrictions, tariffs,
counterparty default and geopolitical risk — nuclear fuel notably so, given sanctions
arising from the Russia-Ukraine conflict and the Prohibiting Russian Uranium Imports Act.
Oversupply during some hours can produce negative pricing and revenue loss for baseload
plants. Market rules vary by region and can change with little notice; price caps,
retirement-deferral orders, requirements that new large loads secure new generation, and
policies favoring new resources over existing ones could force premature retirements.

**Hedging and portfolio management.** Risk limits and procedures cannot eliminate trading
risk, and estimates become less reliable the further out they extend. If the portfolio
cannot cost-effectively meet contracted customer load, the shortfall must be purchased in
wholesale markets.

**Retail competition.** Barriers to entry can be low, and in periods of sustained low gas
and power prices with low volatility, competitors pursue share aggressively. Retail
competition also depends on continued host-state support, and legislative sessions
repeatedly present opportunities for partial or full repeal.

**Emerging technologies.** Distributed solar, storage, advanced nuclear, CCUS and advanced
geothermal could raise clean baseload supply and depress prices, make parts of the fleet
uneconomic before the end of their useful lives, and lower barriers to new entrants.

**Trust and benefit-plan asset values.** Declines in nuclear decommissioning trust
investments would raise decommissioning funding requirements; declines in pension and OPEB
assets, or falling interest rates that inflate those liabilities, would raise contribution
requirements.

**Capital markets, ratings and collateral.** The company depends on public debt, bank and
commercial paper markets. At December 31, 2025 approximately 26%, 8% and 13% of available
credit facilities were with European, Canadian and Asian banks respectively. A downgrade
below investment grade, or failure to satisfy counterparty credit standards or NRC
financial requirements, would require posting significant collateral and raise borrowing
costs. Project-specific financing defaults could result in lenders foreclosing on project
assets.

**Impairment.** Long-lived generation assets are the single largest asset class on the
balance sheet, and the Calpine acquisition adds a significant goodwill balance. Changes in
discount rates, energy prices, projected operating costs or cash flows could produce future
impairments.

**Contract expiration and counterparty credit.** A material portion of the portfolio is
sold under PPAs that expire at various times; replacement pricing may be materially lower,
and without PPAs some facilities may not operate profitably. Bilateral counterparties,
retail customers, and RTO/ISO default-sharing mechanisms all create credit exposure. The
company has issued indemnities to third parties, including several Exelon utilities, in
connection with asset purchases and sales.

**Nuclear-specific risks.** Capacity factors drive results directly — lower factors force
higher-cost replacement generation or market purchases. Refueling outages are planned every
18 to 24 months; longer or unplanned outages compress margins. NRC rule or license changes
could require large capital or operating outlays. The absence of a national spent-fuel
repository affects storage costs and DOE reimbursement, and could impair the ability to
fully decommission units. Under the Price-Anderson Act the company carries the maximum
available nuclear liability insurance, $500 million per operating site, with excess claims
covered through a mandatory industry pool; Congress could impose revenue-raising measures
on the industry for claims exceeding the $16.3 billion single-incident limit. Actual
decommissioning costs may substantially exceed estimates, and shortfalls in trust funding
could require letters of credit, parent guarantees or additional cash contributions.

**Calpine-specific risks.** The merger may not be accretive as anticipated and may dilute
EPS; transaction and integration costs may exceed expectations; anticipated benefits may
take longer or cost more to realize. Former Calpine stockholders held approximately 14% of
outstanding shares immediately after closing (prior shareholders 86%), diluting existing
holders' influence, and sales after lock-up expiration could pressure the share price.
Geothermal resource productivity at the Geysers can decline unexpectedly and steam-field
leases may not renew on favorable terms. DOE cost-share awards at five Calpine facilities
for CCUS front-end engineering and geothermal drilling carry federal compliance,
audit, suspension and debarment risk. Calpine's California and Western assets face
earthquake and wildfire exposure, including public-safety power shutoffs.

**Security and AI.** Physical and cyber threats to grid and information infrastructure are
described as increasingly sophisticated; the company relies on third-party managed service
providers and cloud hosting and is exposed to their incidents. The company states it has
not experienced a material breach or disruption to date. The Calpine acquisition expands
the attack surface and, by its visibility, is expected to draw additional attention from
threat actors. Separately, internally developed or vendor AI systems may produce inaccurate
or biased outputs, and the regulatory landscape for AI is unsettled.

**Demand from the data economy.** Recent benefit from data-center and AI-driven demand may
not persist: that demand is subject to technological change, shifts in customer behavior,
regulatory developments and capital-investment cycles, and may not grow at the pace the
market currently anticipates.

**Crane restart execution.** The restart requires NRC safety and environmental review, a
renewed operating license, state and local permits, and a FERC interconnection agreement.
Failure to obtain approvals could impair capitalized amounts; missed contractual timelines
could trigger significant penalties; cost overruns or interconnection delays could lower
returns.

---

## Management's discussion — fiscal 2025

*From the FY2025 Form 10-K, accession 0001868275-26-000032. Results below exclude Calpine,
which was acquired after the balance sheet date.*

**Results.** Operating revenues were $25,533 million in 2025 against $23,568 million in
2024, up 8.3%. Total operating expenses rose to $22,447 million from $19,287 million,
driven by purchased power and fuel of $14,681 million versus $11,419 million; operating and
maintenance was flat at $6,159 million and depreciation and amortization fell to $985
million from $1,123 million. Operating income declined to $3,086 million from $4,352
million. Net income attributable to common shareholders was $2,319 million, or $7.40 per
diluted share, down from $3,749 million and $11.89. Adjusted (non-GAAP) operating earnings,
the company's preferred internal measure, moved the other way: $2,944 million, or $9.39 per
share, against $2,735 million and $8.67. The effective tax rate rose to 33.8% from 17.1%,
primarily because fewer non-taxable nuclear PTCs were generated and qualified
decommissioning trust income was higher.

**Why GAAP earnings fell $1,430 million.** Management attributes the decline to lower
nuclear PTC revenues in 2025, unfavorable net unrealized losses on economic hedges, and
higher net unrealized losses on equity investments — partly offset by favorable market and
portfolio conditions driven by higher capacity revenues and generation-to-load
optimization, favorable net ZEC revenues including revenue recognized for Illinois ZECs
delivered in prior planning years, and favorable realized and unrealized decommissioning
trust investment activity. The PTC mechanics explain much of the swing in both directions:
because the credit phases out as gross receipts rise, higher energy and capacity prices in
2025 both lifted market revenue and removed PTC revenue. By segment, Mid-Atlantic lost $515
million of nuclear PTC revenue and Midwest $1,090 million of PTC revenue plus $210 million
of net carbon mitigation credit revenue, in each case because energy and capacity prices
rose.

**Segment revenues (2025 vs. 2024).** Mid-Atlantic $6,487 million vs. $5,522 million
(+17.5%); Midwest $5,804 million vs. $4,805 million (+20.8%); New York $2,190 million vs.
$2,050 million (+6.8%); ERCOT $1,904 million vs. $1,550 million (+22.8%); Other Power
Regions $5,583 million vs. $5,506 million (+1.4%). Reportable segment electric revenues
totaled $21,968 million against $19,433 million. "Other" contributed $4,370 million versus
$3,819 million, helped by $410 million of favorable retail gas revenue on higher gas prices
and $160 million of favorable United Kingdom revenue. Unrealized hedging results swung to a
$805 million loss from a $316 million gain.

**Operations.** Nuclear capacity factor was 94.7% in 2025 (94.6% in 2024, 94.4% in 2023),
roughly four percentage points above the industry average every year since 2013. Average
refueling outage duration was 22 days in 2025 against industry averages in the 30s. Dispatch
Match on the gas and oil fleet was 97.9%; Renewable Energy Capture was 96.6%. Owned electric
supply was 204,944 GWh in 2025 versus 208,434 GWh in 2024; purchased power from spot and
bilateral markets was 63,999 GWh versus 60,983 GWh. In Other Power Regions, purchased power
expense rose $1,330 million largely because the retirement of Mystic Units 8 and 9 cut
generation volumes, partly offset by $835 million of favorable realized hedges.

**Cash flow and capital.** Operating activities provided $4,237 million in 2025 against a
$2,464 million use in 2024 — a swing driven largely by a December 2024 amendment to the
accounts receivable facility, after which receivable collections run through operating
rather than investing activities; the improvement was partly offset by higher collateral
postings. Investing used $3,198 million, versus $7,428 million provided in 2024 (the same
receivables-facility mechanic in reverse). Financing used $420 million versus $2,289
million. At December 31, 2025 the capital structure was 7% commercial paper and notes
payable, 31% long-term debt and 62% member's equity, with access to facilities carrying
$9.5 billion of aggregate bank commitments. A loss of investment-grade ratings at that date
would have required approximately $2.7 billion of incremental collateral and would have
taken a three-notch downgrade by S&P or Moody's. During 2025 the revolving credit facility
was upsized from $4.5 billion to $7.0 billion, with the incremental $2.5 billion available
on closing of the Calpine acquisition. Estimated capital expenditures, inclusive of
Calpine, were approximately $5.7 billion for 2026 and $4.7 billion for 2027, roughly 29% of
it nuclear fuel.

**Critical estimates.** The nuclear decommissioning asset retirement obligation was $12.9
billion at December 31, 2025, built from unit-by-unit cost studies refreshed at least every
five years, annually updated escalation factors, and probability-weighted scenarios across
DECON, Shortened SAFSTOR and SAFSTOR approaches and four shutdown-timing alternatives. DOE
acceptance of spent fuel is assumed to begin in 2040. Discounting all future nominal ARO
cash flows at the current prevailing credit-adjusted risk-free rate would reduce the
obligation from approximately $12.9 billion to approximately $11.3 billion. The 2025 annual
goodwill assessments indicated no impairments.

**Policy and market drivers entering 2026.** In December 2025 FERC found PJM's tariff
unjust and unreasonable for lacking clarity on service to co-located load, found the
existing behind-the-meter netting rules no longer just and reasonable with limited
exceptions, and directed PJM to make three new transmission services available to
co-located loads. In January 2026 the National Energy Dominance Council, supported by PJM-
state governors, urged PJM to file tariff revisions addressing capacity-auction reliability
and pricing. The One Big Beautiful Bill Act, signed in July 2025, preserved IRA credits
benefiting the nuclear fleet, CCUS commercialization and geothermal investment. In Texas,
project selections under the Texas Energy Fund announced in fall 2025 included a $278
million loan for Calpine's 460 MW Pin Oak Creek peaking facility; in Maryland, the Public
Service Commission approved an application to advance more than 700 MW of natural gas
generation under the Next Generation Energy Act's expedited pathway.

---

## Current quarter — second quarter and first half of 2026

*From the Form 10-Q for the quarter ended June 30, 2026, accession 0001868275-26-000104,
and the second-quarter earnings materials furnished on Form 8-K, accession
0001868275-26-000097.*

**The Calpine acquisition is the dominant fact of the period.** On January 7, 2026 the
company acquired all outstanding equity of Calpine for a purchase price of approximately
$21.8 billion — 50 million newly issued shares plus approximately $4.5 billion of cash on
hand. (The FY2025 Form 10-K, filed before purchase accounting was finalized, described the
price as approximately $22 billion.) Total merger consideration was recorded at $21,835
million: $17,603 million of stock, valued using the $354.58 closing price on January 6,
2026, plus $4,342 million of cash, net of $96 million of stock subject to a vesting period
and $14 million for settlement of preexisting relationships. Against $32,788 million of
assets acquired and $22,060 million of liabilities assumed — including $12,551 million of
long-term debt and $5,603 million of assets held for sale — the transaction produced
$10,728 million of net identifiable assets and $11,107 million of goodwill. Purchase
accounting may still be adjusted through January 2027.

Calpine is reported as a sixth segment. The Calpine segment recorded $2,147 million of
operating revenues in the second quarter and $4,541 million in the first half. The 10-Q's
acquisition note separately reports operating revenues attributable to Calpine following
the acquisition date — a different measure, and a different amount, from the segment
figures above.

**Results.** Second-quarter operating revenues were $7,504 million against $6,101 million a
year earlier, up 23.0%; first-half revenues were $18,626 million against $12,889 million,
up 44.5%. Second-quarter operating income fell to $580 million from $951 million, while
first-half operating income rose to $2,912 million from $1,402 million. GAAP net income
attributable to common shareholders was $513 million, or $1.42 per diluted share, against
$839 million and $2.67 in the second quarter of 2025 — a $326 million decline. For the six
months, GAAP net income was $2,103 million, or $5.88 per share, against $957 million and
$3.05, a $1,146 million improvement. Adjusted (non-GAAP) operating earnings rose in both
periods: $920 million, or $2.55 per share, for the quarter against $599 million and $1.91;
and $1,893 million, or $5.30 per share, for the half against $1,272 million and $4.05.
Diluted share count averaged 360 million in the quarter against 314 million a year earlier.

Management attributes the quarterly GAAP decline to unfavorable net unrealized losses on
economic hedges, Calpine merger and integration costs, and unfavorable nuclear outage
impacts, partly offset by favorable net market and portfolio conditions driven by higher
capacity revenues (offset by lower carbon mitigation credit revenue) and the addition of
Calpine's operations including purchase-accounting effects. The half-year improvement is
attributed to Calpine, market and portfolio conditions, favorable decommissioning-related
activity driven by a first-quarter 2026 nuclear ARO update, and a smaller unrealized loss
on equity investments, against the same two offsets.

Two of the reconciling items are merger-driven: amortization of acquired commodity
contracts recorded at fair value, new this year, added back $149 million in the quarter and
$303 million in the half, and Calpine merger and integration costs of $84 million and $204
million, sharply higher than the $9 million and $22 million in the same periods of 2025.
Depreciation and amortization rose $189 million in the quarter and $384 million in the
half, and net interest expense rose $165 million and $272 million, both principally from
assumed Calpine debt and related financing. The effective tax rate was 44.2% for the
quarter against 34.6%, higher because of greater qualified decommissioning trust income
taxed at a higher rate; for the half it was 30.7% against 32.4%.

**Operations.** Nuclear generation was 44,160 GWh in the quarter against 45,170 GWh, and
88,827 GWh in the half against 90,753 GWh. Excluding Salem and STP, the nuclear capacity
factor was 93.0% against 94.8%, reflecting 86 planned refueling outage days in the quarter
versus 41 a year earlier, and 20 non-refueling outage days versus 22. Average refueling
outage duration in the quarter was 23 days. Equivalent forced outage factor for the gas,
oil and pumped-storage hydro fleet — a metric adopted in 2026 because of the expanded fleet
— was 6.2%. Renewable energy capture was 96.0% against 96.1%.

**Guidance.** The company raised its full-year 2026 adjusted (non-GAAP) operating earnings
guidance range to $11.50–$12.50 per share, from an initial $11.00–$12.00, based on expected
average diluted shares of 357 million. Management cites commercial outperformance through
higher realized customer margins and portfolio optimization, plus accretive share
repurchases, partly offset by higher operating and maintenance expense from
performance-related compensation. The company has not reconciled the guidance to GAAP net
income, citing the unpredictability of fair-value adjustments on derivatives and
decommissioning trust securities.

**Liquidity and capital allocation.** Operating activities provided $1,553 million in the
first half against $1,584 million a year earlier — first-half 2026 operating cash includes
refunds to state programs associated with nuclear PTCs. Investing used $5,101 million
against $1,758 million, reflecting cash paid net of cash acquired for Calpine and higher
capital expenditures for the Crane restart, Calpine, and co-location infrastructure.
Financing provided $877 million against a $893 million use. The company issued $2.75
billion of senior unsecured notes in January 2026 to pay down assumed Calpine debt and $2.2
billion in May 2026 to repay short-term borrowings and for general corporate purposes; it
also exchanged $2,290 million of Calpine senior notes for Constellation senior notes. At
June 30, 2026 it had access to facilities with $14.5 billion of aggregate bank commitments;
senior unsecured ratings were BBB+ from S&P and Baa1 from Moody's, and a loss of
investment grade would have required approximately $3.4 billion of incremental collateral.

During 2026 the board approved a $4.4 billion increase to the share repurchase program on
top of a remaining $0.6 billion authorization; approximately $2.8 billion remained as of
the filing date. Roughly 7.1 million shares were repurchased in the first half for
approximately $2.0 billion, including open-market purchases and a June secondary offering.
In that offering, selling shareholders — former Calpine holders whose lock-up was waived
for the purpose — sold 11,000,000 shares; the company itself bought 2,000,000 of those
shares for approximately $558.0 million and neither sold shares nor received proceeds
(Form 8-K, accession 0001104659-26-069482). Quarterly dividends of $0.4265 per share were
declared for each of the first three quarters of 2026.

**Divestitures required by the merger.** The final regulatory clearance for the merger was
the DOJ resolution, which requires divestiture of five generating assets in PJM, one in
ERCOT, and Calpine's minority interest in the Gregory Power Plant, with definitive
agreements to be entered within 240 days of closing — by September 4, 2026. The Gregory
interest was divested in January 2026. In March 2026 the company agreed to sell five
predominantly gas-fired assets in Delaware and Pennsylvania totaling approximately 4.4 GW
to LS Power Equity Advisors, LLC for aggregate consideration of $5.0 billion before closing
adjustments.

**Growth and commercial activity in the period.** The company signed an additional 920 MW
of long-term nuclear PPAs with investment-grade customers, 15 to 20 years in duration and
beginning between 2029 and 2032, including a 176 MW agreement with Walmart that enables a
30 MW uprate at the Dresden Clean Energy Center. In the first quarter it signed a 380 MW
agreement with CyrusOne to connect and serve a data center adjacent to the Freestone Energy
Center in Texas, with an exclusive agreement for a further 380 MW in Phase 2, adding to
400 MW of prior Calpine-CyrusOne agreements at the Thad Hill Energy Center. The 105 MW
Pastoria Solar Project was commissioned in April 2026, and the 460 MW Pin Oak Creek Energy
Center reached commercial operation in April 2026 in ERCOT.

**PJM.** In February 2026 PJM filed tariff revisions extending the capacity market price
collar — a cap of approximately $325/MW-day and a floor of approximately $175/MW-day — for
the 2028/2029 and 2029/2030 Base Residual Auctions, which FERC accepted in April 2026. In
June 2026 FERC ruled on issues from the co-location paper hearing and several PJM
compliance filings, pressing PJM to accommodate co-located load before its proposed June
2029 effective date. FERC also directed RTO filings intended to speed service to large
loads; Constellation's Load Dependent Capacity at Existing Plants proposal was flagged in
several orders for consideration.

---

## Subsequent events

*Events after June 30, 2026. The Form 10-Q for the quarter (accession
0001868275-26-000104) does not carry a separate subsequent-events note; the items below are
drawn from its Note 2, Note 15, Note 16 and management's discussion, and from current reports on
Form 8-K as cited.*

- **Brazos Valley Energy Center divestiture agreed (August 2026).** The company entered
  into an agreement with LS Power to divest the Brazos Valley Energy Center, formerly the
  Jack A. Fusco Energy Center, a 606 MW natural gas-fired plant in ERCOT, for **$860 million
  before closing adjustments**. This is the last asset sale required to satisfy the
  regulatory commitments under the Calpine acquisition. Closing is subject to DOJ approval
  and other customary conditions, and is expected by the end of 2026. Together with the
  $5.0 billion PJM sale agreed in March, total gross proceeds for the required divestitures
  are approximately $5.9 billion. The Brazos Valley plant is currently secured under a
  project financing arrangement. (Form 10-Q, accession 0001868275-26-000104; Form 8-K,
  accession 0001868275-26-000097.)

- **PJM 2028/2029 capacity auction cleared at the cap (July 14, 2026).** Every Constellation
  plant in PJM cleared. Cleared volumes at ownership, excluding assets held for sale,
  totaled 18,875 MW — 15,700 MW nuclear and 3,175 MW fossil and other — all at the
  Capacity Performance price of **$325 per MW-day**, effective June 1, 2028. By zone:
  ComEd 10,200 MW, EMAAC 6,550 MW, MAAC 1,725 MW, BGE 375 MW and RTO 25 MW. Capacity
  revenue for nuclear units counts toward the gross receipts calculation for the production
  tax credit. (Form 8-K, accession 0001868275-26-000080.)

- **Crane Clean Energy Center regulatory milestones.** FERC granted a waiver permitting the
  transfer of existing Capacity Interconnection Rights from the dual-fuel Eddystone Units 3
  and 4 in Pennsylvania to Crane, and the NRC approved a fuel license amendment request for
  the site. The company describes these as clearing critical hurdles toward restarting
  operations in 2027. (Form 8-K, accession 0001868275-26-000097.)

- **License renewal applications for two New York nuclear units.** The company filed
  applications with the NRC to extend operation of the Ginna Clean Energy Center and Nine
  Mile Point Unit 1 by 20 years, to 2049. Nine Mile Point Unit 2 is currently licensed to
  2046. (Form 8-K, accession 0001868275-26-000097.)

- **Pastoria Power Bank online (July 2026).** The 80 MW / 320 MWh battery energy storage
  system co-located with the Pastoria Solar Project came online, contracted under a 15-year
  power purchase agreement with Pacific Gas and Electric Company. (Form 10-Q, accession
  0001868275-26-000104.)

- **Winter Storm Uri litigation (July 2026).** The Supreme Court of Texas denied plaintiffs'
  motions for rehearing in the five bellwether appeals, following its March 2026 denial of
  their mandamus petitions. The parties return to the multi-district litigation court to
  effect dismissal of all remaining Uri tort claims. (Form 10-Q, accession
  0001868275-26-000104.)

- **Further share repurchases (July 2026).** The company repurchased approximately one
  million additional shares for approximately **$250 million**. (Form 10-Q, accession
  0001868275-26-000104.)

- **Board changes (August 4–5, 2026).** Robert Lawless retired from the Board on August 4,
  2026, ending his service as its Chair, and the board elected President and Chief
  Executive Officer Joseph Dominguez as Chair effective the same day. The board also
  elected Roger Crandall as a director effective August 5, 2026, to serve until the 2027
  annual meeting. (Form 8-K, accession 0001868275-26-000089.)

- **Third-quarter dividend declared (August 4, 2026).** $0.4265 per share, payable
  September 4, 2026 to shareholders of record on August 18, 2026. (Form 10-Q, accession
  0001868275-26-000104.)

- **Full-year 2026 guidance raised (August 6, 2026).** Adjusted (non-GAAP) operating
  earnings guidance was raised to $11.50–$12.50 per share from $11.00–$12.00. (Form 8-K,
  accession 0001868275-26-000097.)