FuelCell Energy (FCEL) vs Tecogen (TGEN)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
FuelCell Energy (FCEL) has outperformed Tecogen (TGEN) over the past year, gaining 68.6% versus a loss of 72.3%. Over five years, TGEN leads with a +40.3% price change compared with -92.2% for FCEL. FuelCell Energy is the larger company by market cap ($1.42 billion vs $72.8 million), about 19.6 times the size.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | FCEL | TGEN |
|---|---|---|
| Share price | $17.80 | $2.41 |
| Market cap | $1.42B | $72.75M |
| 1-day change | +3.22% | -2.43% |
| YTD return | +135.91% | -50.00% |
| 1-year return | +68.57% | -72.28% |
| 5-year return | -92.22% | +40.26% |
| Forward P/E | — | 16.07 |
| EPS (TTM) | $-2.76 | $-0.35 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $37.88 | $12.07 |
| 52-week low | $5.71 | $1.94 |
| Distance from 52-week high | -53.01% | -80.03% |
| Analyst consensus | buy | none |
| Avg. price target upside | +18.54% | +239.00% |
| Average volume | 8.16M | 191.05K |
| Shares outstanding | 79.95M | 30.19M |
| Employees | 424 | 119 |
| Sector | Energy | Industrials |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- FuelCell Energy is about 19.6 times larger than Tecogen by market value ($1.42B vs $72.75M).
- FCEL has outperformed TGEN by 140.9 percentage points over the past year.
- The two companies sit in different sectors: FuelCell Energy in Energy and Tecogen in Industrials.
About FuelCell Energy
FCEL stock →FuelCell Energy, Inc., together with its subsidiaries, engages in the design, development, production, construction, operation, and servicing of high temperature fuel cells for clean electric power generation. The company engages in the provision of carbonate fuel cell technology; and commercialization of solid oxide electrolysis technology for distributed hydrogen.
Energy · Industrial Machinery/Components · 424 employees
About Tecogen
TGEN stock →Tecogen Inc., together with its subsidiaries, designs, manufactures, markets, and maintains cogeneration products for multi-family residential, commercial, recreational, and industrial use in the United States. It operates in three segments: Products, Services, and Energy Production.
Industrials · Industrial Machinery/Components · 119 employees
FCEL vs TGEN FAQ
Which is bigger, FuelCell Energy or Tecogen?
FuelCell Energy (FCEL) is larger, with a market capitalization of $1.42B compared with $72.75M for Tecogen (TGEN).
Which stock has performed better over the past year, FCEL or TGEN?
FCEL returned +68.57% over the past 12 months, compared with -72.28% for TGEN (price return, excluding dividends). Past performance does not predict future results.
Are FuelCell Energy and Tecogen in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Energy sector.