WinstonWınston
Haffner Energy S.A. logo

Haffner Energy S.A.

ALHAF.PA
25
Renewable Utilities · Utilities
Exchange
Euronext Paris
Winston Score
25
Winston is worried
Below-average fundamentals — multiple weak pillars.
Data as of Aug 9, 2026 · filings through Mar 31, 2026

Haffner Energy is a French company that designs and builds systems to produce hydrogen and syngas from biomass — organic materials like wood waste and agricultural residue. Its main products are small-scale gasification units sold to industrial customers, municipalities, and energy producers looking for low-carbon alternatives to natural gas. The company operates in the renewable energy sector, focusing on what it calls "hythane" — a blend of hydrogen and methane used as a cleaner fuel.

Haffner Energy earns revenue primarily by selling and installing its gasification equipment, with additional income from engineering services and project development. It operates mainly in France and Europe, and as of recent fiscal periods it remains a small, early-stage company with a market cap near zero and deeply negative margins, meaning it spends far more than it earns. The central risk is whether it can scale up enough projects to reach profitability before running out of capital, as competition in green hydrogen is intensifying rapidly.

Winston Score History

Growth Profile

When traditional metrics don't capture the full picture, these are the signals growth stock investors use instead.

Revenue Growth

>+1,000% YoY

YoY Growth Rate

Revenue accelerating

EPS Growth

+71.4% YoY

YoY Growth Rate

EPS growth accelerating

Insider Activity

77.5%ownership

Insiders own a meaningful stake in the company

Cash Runway

~2 months

$1M cash & investments

Quarterly Free Cash Flow

↓ Burn rate worsening

Short runway — potential dilution ahead through share issuance

Revenue accelerating

Haffner Energy S.A. grew revenue 1839% year-over-year and the growth rate is speeding up. That's the kind of momentum growth investors look for — the question is whether margins can follow.

The Winston Score above measures business quality today. Growth stocks often score lower because they invest in the future rather than maximising current profits. These metrics show what matters most for evaluating that future.

Score breakdown

Every number that matters to educated investors.

Each metric is explained in plain language so you know exactly what you're looking at. Start your free trial now.

Quality

Gross Margin
-124.0%
Thin — -124.0% gross margin
Operating Margin
-395.8%
Losing money on operations — -395.8%
ROCE
-30.3%
Weak — -30.3% return on capital

Negative ROIC means the business is losing money on every dollar invested in it.

Full breakdown available with your free trial

See every metric, trend, and what it means for this stock.

Try free

Growth

Sales YoY
+192.6%
Fast-growing sales (+192.6% YoY)
EPS YoY
N/A
Data not available
EPS Consistency
4/8 quarters
Earnings inconsistent quarter-to-quarter

Full breakdown available with your free trial

See every metric, trend, and what it means for this stock.

Try free

Cash Flow

Cash Conversion
N/A
Data not available
FCF Margin
-629.8%
Burning cash (-629.8%)

Free cash flow is negative. They are burning cash, not generating it.

Full breakdown available with your free trial

See every metric, trend, and what it means for this stock.

Try free

Stability

Debt / Equity
0.17
Conservative — low debt load (0.17)
Interest Cover
N/A
Data not available

Full breakdown available with your free trial

See every metric, trend, and what it means for this stock.

Try free

Valuation

P/E Ratio (TTM)
N/M
no trend
Negative earnings — P/E not meaningful
P/E vs Forward
N/A
not available
Data not available

Full breakdown available with your free trial

See every metric, trend, and what it means for this stock.

Try free

Dividends

Not applicable for this business.
🔒 See full fundamentals and if they are improving or declining — click here for your free trial now.
Start free trial