TRANSALTA CORPORATION (TAC): what the price assumes

In the published model solve dated 2026-Q2, anchored at $12.66, TRANSALTA CORPORATION (TAC) is priced for today's economics sustained for ~7.5 years. boothcheck publishes no house fair value, target price, or buy/sell rating; individual model outputs and user-controlled scenarios are analytical inputs, not Boothcheck targets. Narrative composed 2026-07-11.

Generated: 2026-08-10 · Exported: 2026-08-12 · Source: https://boothcheck.com/report/TAC

Headline

FieldValue
TickerTAC
CompanyTRANSALTA CORPORATION
Sector / IndustryUtilities
Current price$12.66/sh
CompositionPower and other 42% / Environmental and tax attributes 5% / Revenue from derivatives and other trading activities 14% / Revenue from merchant sales 37% / Other 2%

What The Price Assumes (Inversion)

The assumption today's price embeds, recovered by inverting the valuation.

FieldValue
Inversion basiswhole-company
Must persist for7.5y
Multiple paid61x operating income

Solve inputs: computed at a 7.5% cost of capital; growth searched up to the 25% self-funding ceiling; each 1pp moves the implied horizon ~2.4 years.

Reconcile: at the x-ray's 9.3% required return this reads ~11.4 years; the models below use their own rates.

How unusual the bet is: elevated

ReferenceValue
vs own history+0.16σ
sustained it ~7.5 years at this level29%
implied end-window share0%

Valuation X-Ray

Every valuation family lands below the price. The price therefore sits beyond what those standard frames encode.

How the valuation models price the stock relative to the market price. Price/FV above 1.0 means the market pays more than that lens defends (expensive); at or below 1.0 the lens can defend the price.

FamilyMedian price/FVModelsReads
Asset3.88x3expensive
Earnings0
Relative0
Growth0

Families that call it expensive: Asset

The models below discount at their own flat-beta convention rates (cost of equity 9.3%, WACC 7.1%); the inversion above states its own rate.

Per-Model Detail (n=3)

ModelFamilyFVPrice/FVApplicableMethodology
DCF Perpetual GrowthGrowth$0.5025.32xnoFCF base $0.3B, growth -2% (input: historical growth), terminal g 0.5%, WACC 7.1%, 5yr projection
DCF Exit MultipleGrowth$6.711.89xnoExit EV/EBITDA: 12.3x / 14.3x / 16.3x (bear / base = today's held flat / bull), 5yr
Relative ValuationRelativenoP/S fallback (negative EPS): Sector P/S 2.5x × TTM revenue — excluded from consensus
Simple DDMGrowthno
Two-Stage DDMGrowthno
Simple Excess ReturnAsset$3.633.49xyesReference only (book value floor): BV/sh $3.63, ROE negative
Two-Stage Excess ReturnAsset$3.263.88xyesReference only (book value with convergence): BV/sh $3.63, ROE converges to ke
Discounted Future Market CapGrowth$4.672.71xnoRev $1.8B, growth -2% (input: historical growth; tapered), Terminal P/S: 1.8x / 2.1x / 2.5x (bear / base = today's held flat / bull, cap 8x)
Peter Lynch Fair ValueRelative$0.00noNegative/zero EPS — earnings-based value floored at $0
Margin TrajectoryGrowthno
Earnings Power ValueEarnings$0.011266.00xnoNormalized EBIT (5y avg op income, one-time charges added back) $0.31B × (1−21%) / WACC 7.1% → EPV (no growth)
Residual IncomeAssetno
Graham NumberAssetno
EV/EBITDA RelativeRelativenoEBITDA $0.53B × sector EV/EBITDA 13.0x
FCF YieldEarnings$0.011266.00xyesFCF $291.9M / Kₑ 9.3% — zero-growth perpetuity (excluded from median)
SBC-Adj FCF YieldEarningsno
Ben Graham FormulaEarningsno
ROIC-Justified P/BAsset$0.8514.89xyesBV $3.63 × (ROIC 1.7% / WACC 7.1%)
P/Sales SectorRelativenoRevenue $1.77B × sector P/S 2.5x
PEG Fair ValueRelativeno
Earnings YieldEarningsno
Funds From Operations MultipleRelativeno
Clinical Phase NPVGrowthno
MertonAssetno
V5 Mechanicalno

Economic-Unit Decomposition (Sum Of The Parts)

One or more material disclosed units has unresolved economics. Unknown/general is not evidence of homogeneity: segment SOTP is primary but incomplete, consolidated cash flow may remain only a secondary cross-check when every unit shares an enterprise basis, and one sector multiple or target margin is withheld.

UnitRoleValuation basisRevenueReported profitValue evidenceStatus
Hydrooperatingenterprise0.4B reported-currencywithheldunresolved no unit value
Wind & Solaroperatingenterprise0.2B reported-currencywithheldunresolved no unit value
Gasoperatingenterprise1.3B reported-currencywithheldunresolved no unit value
Energy Transitionoperatingenterprise0.5B reported-currencywithheldunresolved no unit value
Energy Marketingoperatingenterprise0.1B reported-currencywithheldunresolved no unit value
IFRS financialsoperatingenterprise2.4B reported-currencywithheldunresolved no unit value

No total common-equity value is stated. One or more material units lack a supported unit value. The displayed values are an indicative subtotal; consolidated debt and cash cannot be applied to a fraction of the company.

Solvency

FieldValue
Net debt$2.4b
Net debt / NOPAT (after-tax)30.63x
Net debt / operating income (pre-tax)24.20x
Interest coverage0.4x
Share count CAGR (dilution)2.3%
Burning cashno

Bullet Takeaways

Bull Case

Utilities are usually the easy ones to value: a regulator sets the allowed return, the rate base grows a few percent a year, and the stock behaves like a bond with a growth coupon. TransAlta breaks that pattern on purpose. It is a merchant power generator, selling electricity into open markets, above all Alberta's, at whatever the market clears. That makes the earnings stream lumpier than a regulated peer's, and it is exactly why the stock is interesting right now: a merchant generator is a leveraged claim on power demand, and power demand in its home market is about to meet data centers.

The demand story stopped being hypothetical this year. TransAlta announced a memorandum of understanding with CPP Investments and Brookfield to develop a data center at its Keephills site in Alberta, anchored by an initial long-term power purchase agreement of roughly 230 megawatts with potential expansion toward a gigawatt of load. A long-term contracted load of that size does the one thing a merchant generator most wants: it converts spot-price exposure into contracted revenue at the customer's expense, not the regulator's. Management is simultaneously diversifying away from pure Alberta exposure, closing a $350 million equity offering in June 2026 to fund the purchase of two gas-fired peaking plants totaling 318 megawatts near Denver.

The cash side supports the patience the thesis requires. The company generated $291.9 million of trailing free cash flow, reaffirmed its 2026 guidance of $950 million to $1,050 million of adjusted EBITDA and $350 million to $450 million of free cash flow, and raised the dividend 8%, its seventh consecutive annual increase. Concede the weak first quarter: revenue and earnings fell on soft Alberta prices and an outage at Centralia Unit 2. But a company that raises its dividend for a seventh straight year while reaffirming guidance in a down quarter is signaling that it reads the weakness as cyclical, and the data-center pipeline gives the cycle something new to land on.

Bear Case

TransAlta's historical edge was owning low-cost generation in a market, Alberta, that paid well for it, and that edge is eroding from both directions at once. On the price side, Alberta power prices have come down hard: first-quarter 2026 revenue fell to $565 million from $758 million a year earlier, and adjusted EBITDA dropped to $204 million from $270 million, with management citing lower Alberta prices and no generation from Centralia Unit 2. On the supply side, the same data-center demand that anchors the bull case is drawing new generation and new competitors into the province. A merchant generator has no regulated moat to fall back on; when the market price of its product falls, the earnings simply fall with it.

The trailing financials show what that looks like. The company lost money over the trailing twelve months on a GAAP basis, return on equity is negative, and returns on invested capital sit below 2%, which is thin compensation for owning a fleet of power plants. Interest coverage runs about 1.9 times operating income, so a levered balance sheet sits under a volatile revenue line. Net earnings attributable to common shareholders fell to $13 million in the first quarter from $46 million a year earlier. The equity story leans heavily on adjusted EBITDA and free cash flow measures precisely because the bottom line has little to show.

Capital allocation compounds the concern. The share count has grown about 2.3% a year over the past four years, and the June 2026 equity offering added another $350 million of new shares to fund the Denver peaker acquisition, so existing holders are being diluted to buy assets while the home market softens. The dividend increase reads well in a headline, but paying a rising dividend from a loss-making income statement while issuing equity is a circular way to return capital. The bet embedded in today's price needs the company to grow operating income near the fastest pace it can fund internally for roughly eight years, and only about a quarter of comparable fast-growers have sustained anything like that. If Alberta prices stay soft and the Keephills memorandum stays a memorandum, the price is paying for growth the current fleet is not delivering.

Valuation

At $14.22 (July 10, 2026), the methods that can see TransAlta's future disagree sharply with the ones that can only see its present. Peer-multiple approaches land near the price: a sales-based read sits roughly at it, while an EV/EBITDA comparison against the utility sector's 13x median puts the price about a third above what trailing EBITDA supports. Asset-grounded approaches sit far below, with the price running around four times what book-value-and-profitability reads defend, which is what happens when book value per share is $3.63, trailing GAAP earnings are negative, and returns on invested capital run under 2%. The pattern says the market is not paying for demonstrated returns; it is paying for what the fleet could earn in a tighter power market with contracted data-center load attached.

Worked backward, today's price implies company-wide operating growth held near the fastest pace the business can fund from its own cash flow for roughly eight years, and only about a quarter of comparable fast-growers have sustained that pace over a similar horizon. The comparison data behind that read is limited, so treat it as directional, but the direction is consistent: this is a demanding price for a company whose trailing year produced a loss. What has to be true is fairly specific. Alberta power prices need to recover from the levels that cut first-quarter revenue to $565 million from $758 million, and the Keephills data-center development needs to convert from memorandum to megawatts.

The balance sheet can carry the wait, but not indefinitely. Net debt stands at about $2.4 billion against $150 million of liquid assets, interest coverage is roughly 1.9 times operating income, and the share count has grown about 2.3% a year over four years, with a further $350 million equity offering closed in June 2026. Free cash flow remains positive at $291.9 million trailing, and management's reaffirmed 2026 guidance of $350 million to $450 million of free cash flow frames the near-term cash engine. The decisive number is the Alberta power price: everything else in the price, the growth assumption, the multiple gap over the asset reads, the dividend trajectory, keys off whether the home market firms.

Catalysts

The Keephills data-center development is the catalyst that can reprice the story. TransAlta's memorandum of understanding with CPP Investments and Brookfield covers an initial long-term power purchase agreement of roughly 230 megawatts with potential expansion up to a gigawatt of load. Each step from memorandum toward definitive agreements and construction converts merchant exposure into contracted revenue, and the market will treat progress announcements as information events. The counterweight is the Alberta spot market itself: first-quarter results fell on lower provincial power prices, so any evidence of firming or further softening in Alberta pricing moves the near-term earnings picture directly.

The capital program has two dated threads. The June 2026 equity offering of $350 million funds the acquisition of two natural gas-fired peaking facilities totaling 318 megawatts near Denver, and the closing of that purchase extends the fleet outside Alberta for the first time in this cycle. Management also reaffirmed 2026 guidance of $950 million to $1,050 million in adjusted EBITDA and $350 million to $450 million in free cash flow, and raised the dividend 8% for a seventh consecutive annual increase, so the next quarterly report tests whether a weak first quarter was an outage-and-price blip or the start of a guidance problem. Centralia Unit 2's return to generation is the operational item to check inside that print.

Peer Cohorts (Per Segment, With Filing Citations)

Core business (reported)

Methodology Note

Fundamentals sourced from SEC EDGAR filings. Current price from Databento. The priced-in inversion and valuation x-ray are computed by the boothcheck engine; narrative composed by AI from the structured data.

Sources

TransAlta Q1 2026 news release · TransAlta announcement, 2026 · TransAlta offering announcement, June 2026

View the full interactive TAC report on boothcheck