ENGIE is a large, investment-grade utility with substantial asset intensity and generally stable operating cash flows, which makes hybrid capital a relevant instrument. Utilities often use hybrids because rating agencies may grant partial equity credit, helping preserve credit metrics while avoiding common equity dilution.

However, ENGIE’s 2022 profile argues against relying too heavily on hybrids:

- Profitability weakened sharply: profit attributable to owners fell from €3.66bn in 2021 to only €0.22bn in 2022, and continuing operations were loss-making.
- Leverage and liabilities are already substantial: borrowings were about €40.6bn at year-end 2022, while total liabilities were nearly €196.2bn.
- Equity declined from €42.0bn to €39.3bn, reducing balance-sheet cushion.
- Financing conditions deteriorated materially in 2022: 5Y–10Y swap rates rose from near-zero/negative levels to around 1.7%–1.9%, and corporate credit spreads/yields also increased. Hybrid bonds would therefore be considerably more expensive than in prior years.
- ENGIE already has deeply subordinated perpetual notes, which fell from €3.77bn to €3.39bn, suggesting hybrids are part of the toolkit but not the dominant source of capital.
- Operating cash flow improved to €8.6bn, but high capex, dividends, and financing needs mean excessive hybrid reliance could pressure future distributions and credit perception.

Overall, hybrids should play a meaningful but moderate role: enough to support credit metrics and fund long-duration infrastructure assets, but not so much that ENGIE becomes overly dependent on expensive subordinated capital during a rising-rate environment. A 25% reliance is more appropriate than 50% or higher.

<answer>25%</answer>