TAC vs NRG vs VST vs CWEN vs BEP

For growth investors, Brookfield Renewable Partners L.

P. (BEP) is the stronger pick with 10. 9% revenue growth year-over-year, versus -15. 5% for TransAlta Corporation (TAC). Clearway Energy, Inc. (CWEN) offers the better valuation at 26. 9x trailing P/E, making it the more compelling value choice. Analysts rate TransAlta Corporation (TAC) a "Buy" — based on 9 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Clearway Energy, Inc.

(CWEN) is the cheapest at 26. 9x versus Vistra Corp. at 69. 7x. On forward P/E, NRG Energy, Inc. is actually cheaper at 15. 5x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: NRG Energy, Inc. wins at 1. 09x versus Vistra Corp. 's 1. 60x — a reasonable growth-adjusted valuation.

Over the past 5 years, Vistra Corp.

(VST) delivered a total return of +884. 7%, compared to +12. 6% for Brookfield Renewable Partners L. P. (BEP). Over 10 years, the gap is even starker: VST returned +942. 3% versus TAC's +171. 5%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Clearway Energy, Inc.

(CWEN) is the lower-risk stock at 0. 54β versus NRG Energy, Inc. 's 1. 84β — meaning NRG is approximately 241% more volatile than CWEN relative to the S&P 500. On balance sheet safety, Brookfield Renewable Partners L. P. (BEP) carries a lower debt/equity ratio of 102% versus 10% for NRG Energy, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Brookfield Renewable Partners L.

P. (BEP) is pulling ahead at 10. 9% versus -15. 5% for TransAlta Corporation (TAC). On earnings-per-share growth, the picture is similar: Brookfield Renewable Partners L. P. grew EPS 92. 4% year-over-year, compared to -206. 7% for TransAlta Corporation. Over a 3-year CAGR, BEP leads at 11. 4% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Clearway Energy, Inc.

(CWEN) is the more profitable company, earning 11. 8% net margin versus -5. 7% for TransAlta Corporation — meaning it keeps 11. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: BEP leads at 13. 4% versus -9. 2% for TAC. At the gross margin level — before operating expenses — TAC leads at 32. 6%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, NRG Energy, Inc. (NRG) is the more undervalued stock at a PEG of 1. 09x versus Vistra Corp. 's 1. 60x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, NRG Energy, Inc. (NRG) trades at 15. 5x forward P/E versus 78. 1x for TransAlta Corporation — 62. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for VST: 47. 7% to $227. 60.

All stocks in this comparison pay dividends.

Brookfield Renewable Partners L. P. (BEP) offers the highest yield at 11. 7%, versus 0. 6% for Vistra Corp. (VST).

For long-horizon retirement investors, Clearway Energy, Inc.

(CWEN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 54), 7. 9% yield, +237. 4% 10Y return). NRG Energy, Inc. (NRG) carries a higher beta of 1. 84 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CWEN: +237. 4%, NRG: +870. 6%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the null sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: TAC is a small-cap quality compounder stock; NRG is a mid-cap quality compounder stock; VST is a mid-cap quality compounder stock; CWEN is a small-cap income-oriented stock; BEP is a mid-cap income-oriented stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.