Iberdrola appears to be a strong candidate to issue hybrid bonds.

Key considerations:

- Large, established utility issuer: Iberdrola is a major regulated/renewable electricity group with very large assets of EUR 154.7bn and recurring operating cash flow. Utilities are common hybrid bond issuers because of their capital-intensive investment needs and relatively stable cash flows.

- Strong operating scale and profitability: 2022 revenue rose to EUR 53.9bn from EUR 39.1bn, EBITDA was EUR 13.2bn, and operating profit was EUR 8.0bn. Profit attributable to owners increased to EUR 4.34bn. This supports capacity to service discretionary hybrid coupons.

- Solid cash generation: operating cash flow was EUR 10.4bn, comfortably positive and higher than the prior year. This is important for hybrid coupon sustainability.

- Significant equity base: total equity was EUR 58.1bn, including EUR 41.1bn attributable to the parent and EUR 17.0bn non-controlling interests. A large equity cushion supports hybrid issuance.

- Leverage and funding need are meaningful but manageable: financial liabilities are substantial, with noncurrent financial liabilities of EUR 44.2bn and current financial liabilities of EUR 25.1bn. However, this is typical for a utility with large infrastructure investments. Hybrid bonds could be appropriate to support credit metrics while funding capex.

- Demonstrated market precedent: Iberdrola already has perpetual subordinated obligations / hybrid-like instruments, with “perpetual subordinated bond” interest accrued and paid, and prior-year issuance of EUR 2.74bn. Existing use of hybrid capital indicates market access and structural suitability.

- Investment-heavy profile: investing cash outflow was EUR 10.2bn, mostly property, plant and equipment. Hybrid bonds are often suitable for companies with large long-term infrastructure investment programs.

- Dividend capacity exists: dividends were paid and proposed, and earnings per share were positive. This suggests financial flexibility, although continued high capex and debt levels should be monitored.

The main caution is the high absolute level of debt and current liabilities, plus negative investing free cash flow due to heavy capex. However, for a large regulated utility with stable EBITDA, strong cash flow, substantial equity, and prior hybrid issuance experience, these factors make hybrid bonds particularly suitable rather than unsuitable.

<answer>Strongly Suitable</answer>