RNW vs GEV vs ARRY vs ENPH vs FSLR

For growth investors, Array Technologies, Inc.

(ARRY) is the stronger pick with 40. 2% revenue growth year-over-year, versus 8. 9% for GE Vernova Inc. (GEV). First Solar, Inc. (FSLR) offers the better valuation at 15. 1x trailing P/E (12. 0x forward), making it the more compelling value choice. Analysts rate ReNew Energy Global Plc (RNW) a "Buy" — based on 6 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, First Solar, Inc.

(FSLR) is the cheapest at 15. 1x versus GE Vernova Inc. at 59. 1x. On forward P/E, ReNew Energy Global Plc is actually cheaper at 0. 4x — 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: First Solar, Inc. wins at 0. 39x versus Enphase Energy, Inc. 's 2. 79x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, GE Vernova Inc.

(GEV) delivered a total return of +698. 3%, compared to -71. 2% for Enphase Energy, Inc. (ENPH). Over 10 years, the gap is even starker: ENPH returned +1738% versus ARRY's -77. 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), ReNew Energy Global Plc (RNW) is the lower-risk stock at 0.

62β versus Array Technologies, Inc. 's 2. 32β — meaning ARRY is approximately 272% more volatile than RNW relative to the S&P 500. On balance sheet safety, First Solar, Inc. (FSLR) carries a lower debt/equity ratio of 5% versus 6% for ReNew Energy Global Plc — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Array Technologies, Inc.

(ARRY) is pulling ahead at 40. 2% versus 8. 9% for GE Vernova Inc. (GEV). On earnings-per-share growth, the picture is similar: GE Vernova Inc. grew EPS 217. 0% year-over-year, compared to 10. 1% for ReNew Energy Global Plc. Over a 3-year CAGR, FSLR leads at 25. 8% 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.

First Solar, Inc.

(FSLR) is the more profitable company, earning 29. 3% net margin versus -4. 1% for Array Technologies, Inc. — meaning it keeps 29. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: RNW leads at 53. 5% versus 3. 6% for GEV. At the gross margin level — before operating expenses — RNW leads at 91. 1%, 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, First Solar, Inc. (FSLR) is the more undervalued stock at a PEG of 0. 39x versus Enphase Energy, Inc. 's 2. 79x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ReNew Energy Global Plc (RNW) trades at 0. 4x forward P/E versus 37. 6x for GE Vernova Inc. — 37. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for FSLR: 23. 1% to $264. 13.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

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

(ENPH) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1738% 10Y return). Array Technologies, Inc. (ARRY) carries a higher beta of 2. 32 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ENPH: +1738%, ARRY: -77. 5%), 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.

These companies operate in different sectors (RNW (Utilities) and GEV (Utilities) and ARRY (Energy) and ENPH (Energy) and FSLR (Energy)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: RNW is a small-cap high-growth stock; GEV is a large-cap quality compounder stock; ARRY is a small-cap high-growth stock; ENPH is a small-cap quality compounder stock; FSLR is a mid-cap high-growth 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.