NPWR vs HYLN vs CLNE vs FCEL vs PLUG

For growth investors, Hyliion Holdings Corp.

(HYLN) is the stronger pick with 130. 3% revenue growth year-over-year, versus -100. 0% for NET Power Inc. (NPWR). Analysts rate NET Power Inc. (NPWR) a "Buy" — based on 2 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.

Over the past 5 years, Hyliion Holdings Corp.

(HYLN) delivered a total return of -72. 9%, compared to -95. 0% for FuelCell Energy, Inc. (FCEL). Over 10 years, the gap is even starker: PLUG returned +61. 7% versus FCEL's -99. 3%. 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), Clean Energy Fuels Corp.

(CLNE) is the lower-risk stock at 1. 04β versus NET Power Inc. 's 3. 17β — meaning NPWR is approximately 203% more volatile than CLNE relative to the S&P 500. On balance sheet safety, NET Power Inc. (NPWR) carries a lower debt/equity ratio of 1% versus 20% for Plug Power Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Hyliion Holdings Corp.

(HYLN) is pulling ahead at 130. 3% versus -100. 0% for NET Power Inc. (NPWR). On earnings-per-share growth, the picture is similar: Plug Power Inc. grew EPS 100. 0% year-over-year, compared to -1414. 3% for FuelCell Energy, Inc.. Over a 3-year CAGR, HYLN leads at 18. 2% 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.

NET Power Inc.

(NPWR) is the more profitable company, earning 0. 0% net margin versus -1645. 7% for Hyliion Holdings Corp. — meaning it keeps 0. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PLUG leads at 38. 1% versus -1886. 4% for HYLN. At the gross margin level — before operating expenses — PLUG leads at 99. 8%, 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.

In this comparison, FCEL (1.

0% yield) pays a dividend. NPWR, HYLN, CLNE, PLUG do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Clean Energy Fuels Corp.

(CLNE) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 04)). NET Power Inc. (NPWR) carries a higher beta of 3. 17 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CLNE: -30. 1%, NPWR: -79. 7%), 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 (NPWR (Industrials) and HYLN (Consumer Cyclical) and CLNE (Energy) and FCEL (Industrials) and PLUG (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NPWR is a small-cap quality compounder stock; HYLN is a small-cap high-growth stock; CLNE is a small-cap quality compounder stock; FCEL is a small-cap high-growth stock; PLUG is a small-cap quality compounder stock. FCEL pays a dividend while NPWR, HYLN, CLNE, PLUG do not, making them suitable for different income and tax situations. 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.