Valuation -- 6/10

TLN at $374.61 (PF EV ~$25B) trades at ~13x 2026 standalone EBITDA and ~10-11x pro-forma Cornerstone -- a premium to the historical IPP 6-8x norm but in line with VST/NRG and at a modest discount to CEG (~13x with IRA-PTC certainty). The bull lens: on probability-weighted 2028 numbers including a second hyperscaler PPA, the stock screens at ~7-8x and FCF/share doubles 2025->2026, growing again to ~$34 in 2027. The bear lens: ex- Cornerstone and ex-second hyperscaler, you are paying 2x historical IPP multiples for a single- asset-concentrated merchant with an adverse FERC BTM ruling and a Montour pivot. EV/EBITDA and FCF yield are the right primary metrics for IPP/merchant power -- P/E is distorted by D&A and nuclear PTC mechanics. Probability-weighted fair value ~$355-$400 brackets the current print; risk/reward is balanced-to-favorable but margin of safety is thin. Weight: 15%
EV/EBITDA (2026E PF)
~10-11x
~13x ex-Cornerstone standalone
EV/EBITDA (2027E PF)
~9-10x
Cornerstone full year + AWS ramp
FCF Yield (2026E)
~6-7%
~9% PF 2027 on $34 FCF/sh
Prob-Wtd Fair Value
$355-$400
vs spot $374.61 -- inside base
Peer multiples comparison
Metric TLN (PF) TLN ex-CS CEG VST NRG AES
Fwd EV/EBITDA (2026E) ~10-11x ~13x ~13x ~10x ~10x ~7-8x
Fwd EV/EBITDA (2027E) ~9-10x ~11-12x ~12x ~9x ~9x ~7x
Fwd P/E (2026E) ~25-28x -- ~26x ~18x ~17x ~9x
FCF Yield (2026E) ~6-7% -- ~3.8% ~7.2% ~6-7% ~10%+
Net Debt/EBITDA (YE26E) <3.5x ~2.5x ~1.5x ~3.0x ~3.5x ~5.5x
Key Takeaway TLN trades roughly in line with VST/NRG on PF EV/EBITDA when giving credit for Cornerstone and the AWS ramp, at a modest discount to CEG (IRA-PTC certainty, IG balance sheet), and at a premium to AES. Ex-Cornerstone standalone TLN is ~13x -- 2x historical IPP norms of 6-8x. FCF yield is the cleaner lens: ~6-7% in 2026 stepping to ~9% PF 2027 is competitive with VST/NRG and superior to CEG.
Multiples per consensus as of May 2026. TLN PF reflects $3.45B Cornerstone close (summer 2026) adding ~$500M EBITDA run-rate. TLN ex-CS uses 2026 standalone EBITDA midpoint ~$1.9B against ~$25B PF EV (net of $2.6B new debt and $2.55B cash + 2.4M shares consideration).

TLN cash flow trajectory
Metric 2024A 2025A 2026E Guide
Adjusted EBITDA $770M $1,035M $1,750M - $2,050M
Adjusted Free Cash Flow $283M $524M $980M - $1,180M
YoY EBITDA Growth -- +34% ~+83% (mid)
2026 EBITDA midpoint ~$1.9B is an ~83% YoY step-up driven by (1) full year of Freedom/Guernsey, (2) AWS PPA ramp, (3) RMR + capacity uplift from 2025/26 and 2026/27 PJM BRA. Cornerstone adds ~$500M run-rate on close (summer 2026), implying ~$2.3-2.4B PF run-rate exiting 2026.

Primary valuation metric: EV/EBITDA & FCF yield

Per the IPP/merchant power rubric, EV/EBITDA and FCF yield are the correct primary metrics -- trailing/forward P/E is distorted by:

EV/EBITDA captures asset-level cash earning power across the fleet on an apples-to-apples basis with CEG/VST/NRG. FCF yield captures the actual cash available for buybacks ($2B authorized through 2028) and incremental M&A -- the real currency of IPP capital allocation. On these two metrics TLN looks expensive vs. history (13x vs. 6-8x norm) but reasonable vs. AI-power peer set, with FCF yield stepping from ~6-7% in 2026 to ~9% PF 2027.


Scenario analysis
Scenario Probability 2027E PF EBITDA EV/EBITDA Fair Value Range Drivers
Bull 30% $2.8-3.0B 11-12x $450-$525 Second 1 GW hyperscaler PPA signed by YE26, RBP rules favorable, BRA cap removed
Base 50% $2.5-2.7B 9-10x $340-$410 Cornerstone closes on time, AWS ramps on schedule, no incremental PPA in 2026
Bear 20% $2.2-2.4B 7-8x $200-$275 FERC tightens BTM further, no second PPA, gas prices soften, cap stays in place
Probability-Weighted Fair Value ~$355-$400 Spot $374.61 sits inside base case; bull upside ~$100-$150, bear downside ~$100-$175. Asymmetric tilt depends entirely on hyperscaler PPA cadence in 2H 2026.

Catalyst stack
# Catalyst Impact Timeframe
1 Second hyperscaler PPA (post-Montour pivot) Mgmt pipeline active across multiple sites; each 1 GW = ~$1-1.5B incremental NPV. Delivery post-2028 regardless of signing date. 2H 2026 - 1H 2027
2 PJM RBP / Reliability Backstop Procurement A pay-as-bid 15-yr procurement would unlock financeable new-build and add upside to existing-asset capacity revenue. Mgmt in active coalition. 2H 2026 ruling
3 Cornerstone close (summer 2026) Adds ~$500M EBITDA run-rate, >$4/share incremental FCF. Already announced, regulatory close pending. Q3 2026
4 PJM Capacity Auction prints 2026/27 BRA cleared at $329.17/MW-day cap ($16.1B total); 2027/28 cleared at $333.44/MW-day cap ($16.4B total) -- both at price collars. Removal/raising the cap is clear optionality. Mid-2026 next auction
5 AWS PPA ramp acceleration Existing contract allows acceleration up to 480 MW earlier than ramp; each 480 MW tranche ~$2/share FCF impact per mgmt slide. Ongoing 2026-2028
6 Susquehanna re-licensing (60 -> 80 yrs) Existing license runs to 2042/2044. SLR application planned; extension underpins long-dated contract value. 2027-2030 process
7 Hedge book monetization TLN intentionally under-hedged in '27/'28 outer years; rising forward sparks (+15% Q4 2025) provide opportunistic hedge layering. Ongoing
8 Buybacks ($2B authorized through 2028) At ~3.0x leverage today, room to lean in on dips. Average price paid ~$149 to date. Ongoing

Risk matrix
# Risk Severity Probability Detail
1 FERC behind-the-meter overhang HIGH HIGH FERC rejected the amended Susquehanna ISA in Nov 2024 (300 -> 480 MW BTM); in March 2026 FERC denied rehearing. AEP/Exelon claim $140M/yr cost-shift to ratepayers. Amazon 2.0 PPA pivot to front-of-the-meter mitigates but at lower spread economics. Single biggest structural risk to the IPP-hyperscaler thesis.
2 Montour / second PPA slippage HIGH MEDIUM Montour County Commission vote went against TLN; mgmt explicitly walked away from "discussing development in public forum." Any 6-12 month delay in a second hyperscaler PPA could compress the multiple given how much is priced in.
3 Single-asset concentration at Susquehanna HIGH LOW-MED Susquehanna (~2.5 GW nuclear) is ~50% of equity value and anchor of the AWS PPA. A multi-month forced outage (e.g. Q2 2025 Unit 2) materially impairs cash flow. A nuclear safety event anywhere in the US fleet would crater the multiple.
4 Valuation reset / multiple compression HIGH MEDIUM At ~13x 2026E EBITDA ex-Cornerstone, well above historical IPP norms (6-8x) and at parity with VST despite less geographic diversity. If AI capex narrative cracks, 3-4 turns of multiple = 30-40% downside. Consensus PT ~$455 is only ~21% above spot.
5 PJM capacity cap / political backlash MEDIUM MED-HIGH Last two BRAs cleared at the cap. Governor Shapiro and PA/Ohio politicians focused on affordability. RBP rules could include cost-allocation provisions or carve-outs that limit upside. The +71% PPL-zone load forecast invites political intervention on ratepayer protection.
6 Power price / gas price normalization HIGH MEDIUM Meaningful share of EBITDA is merchant on the fossil fleet (Freedom, Guernsey, Cornerstone CCGTs). Sustained low gas + mild weather + DC demand under-delivery would compress sparks materially -- 2026/27 sparks already moved +15% but can reverse.
7 Cornerstone integration / leverage MEDIUM LOW-MED $3.45B price (~$2.55B cash + 2.4M shares), $2.6B new debt. Pro-forma leverage temporarily above 3.5x target. If standalone EBITDA disappoints, balance sheet less flexible.
8 Nuclear PTC mechanics MEDIUM LOW Susquehanna did not receive the PTC in 2025 (price-based mechanism). If realized prices stay above the $43.75 strike, no PTC -- bullish on energy revenue but removes a floor. Repeal/modification of the IRA nuclear PTC is a tail risk under the current administration.

Honest bull case

The "powering AI" thesis is real and TLN owns the single most valuable nuclear asset positioned for it -- Susquehanna, 2.5 GW dual-unit, dedicated transmission, AWS already contracted at scale. Management is best-in-class commercial operators with a proven flywheel: contract -> acquire -> hedge -> repurchase. FCF per share doubles 2025 -> 2026 and grows again in 2027; Cornerstone is highly accretive (~$4+/share); a second hyperscaler PPA is a matter of when, not if; and PJM capacity prices clearing at cap signal a structurally tight market for 5+ years.

Honest bear case

You are paying ~13x 2026 standalone EBITDA -- 2x historical IPP multiples -- for a single-asset-concentrated merchant generator whose flagship deal structure was rejected twice by FERC and whose next big PPA just got blocked by a county commission. The hyperscaler bid is exquisitely sensitive to capex cycles; AWS, MSFT, GOOG could rationalize spend in any 6-month window. Susquehanna's spring 2025 outage cost ~$100M+ of EBITDA and the asset is 42 years old. Buybacks have already happened at the cheap prices (~$149 avg); from here management is buying at a premium.


Score rationale

Score of 6/10 reflects balanced-to-favorable risk/reward with thin margin of safety.

Why not higher (7-8): The FERC BTM rejection is now adverse and final on rehearing (March 2026), removing a structural option that was central to the original Amazon 1.0 deal economics. Single-asset concentration at Susquehanna (~50% of equity value) is real and the asset is 42 years old. The stock has already moved +55% YoY -- much of the bull case is priced. Consensus PT of ~$455 is only ~21% above spot, signaling sell-side is also out of room. At ~13x standalone 2026 EBITDA, you are paying 2x historical IPP multiples with limited cushion if any one of the 2027/2028 hyperscaler PPAs slips or RBP rules disappoint.

Why not lower (4-5): The catalyst slate is genuinely loaded -- Cornerstone close in Q3 2026, second PPA pipeline active across multiple sites, RBP ruling expected 2H 2026, capacity auction cap removal optionality, AWS ramp acceleration. Cornerstone-adjusted valuation (~10-11x 2026E) is in line with VST/NRG and below CEG. FCF yield of ~6-7% in 2026 stepping to ~9% PF 2027 is competitive. The AI demand thesis remains intact per management ("data centers are coming and they're not slowing down") and PJM capacity clearing at cap two auctions running confirms structural tightness for 5+ years.

Net assessment: Probability-weighted fair value ~$355-$400 brackets spot of $374.61. Bull upside of ~$100-$150 vs. bear downside of ~$100-$175 is symmetric, with asymmetric tilt depending entirely on hyperscaler PPA cadence in 2H 2026. Suitable as a core AI-power position sized for the PPA-cadence binary, with willingness to add on pullbacks tied to Montour/FERC headlines rather than thesis breaks.

Data sourced from Daloopa and public filings. Analysis as of May 2026.