To assess the suitability of IBERDROLA SA for issuing hybrid bonds, we must evaluate its financial health, creditworthiness, and existing capital structure based on the provided 2022 annual report data.

**1. Financial Stability and Profitability:**
*   **Revenue Growth:** Revenue increased significantly from €39,114 million in 2021 to €53,949 million in 2022, indicating strong top-line growth.
*   **Profitability:** The company generated a Net Profit attributable to owners of €4,339 million and an EBITDA of €13,228 million. This demonstrates robust cash generation capabilities, which are essential for servicing the coupon payments associated with hybrid bonds (which are often deferrable but psychologically important to maintain market access).
*   **Operating Cash Flow:** Cash flows from operating activities were strong at €10,443 million, providing ample liquidity.

**2. Leverage and Capital Structure:**
*   **Equity Base:** Total Equity stands at €58,114 million. Hybrid bonds are often issued to strengthen the equity ratio or manage leverage without diluting existing shareholders.
*   **Debt Levels:** Non-current financial liabilities are €44,216 million, and current financial liabilities are €25,079 million. Total financial debt is substantial, but manageable given the EBITDA.
*   **Existing Hybrids:** The line item "Instrumentos De Capital Con Caracteristicas De Pasivo Financiero" (Instruments with characteristics of financial liability equity) shows €576 million (non-current) and €87 million (current). This indicates the company already has experience issuing and managing hybrid-like instruments or perpetual subordinated debt. The fact that these exist and the company maintains a strong credit profile suggests the market accepts their hybrid issuance.

**3. Credit Quality Indicators:**
*   **Interest Coverage:** EBITDA (€13,228 million) vs Finance Costs (€3,042 million). The ratio is approximately 4.35x, which is a healthy coverage ratio, suggesting the company can comfortably meet interest obligations, including those from potential new hybrid issuances.
*   **Asset Base:** The company has a massive asset base (Total Assets €154,667 million), primarily in Property, Plant, and Equipment (€86,326 million), providing strong collateral and stability typical of utility companies. Utility companies are traditionally strong issuers of hybrid capital due to their regulated, predictable cash flows.

**4. Market Context:**
*   Iberdrola is a large, investment-grade utility company. Such entities are typically "Strongly Suitable" for hybrid bond issuance because:
    *   They have stable, predictable cash flows.
    *   They often have targets for credit ratings that hybrids help optimize (equity credit from rating agencies).
    *   They have a proven track record (evidenced by existing instruments and successful past issuances like the €2,740 million perpetuals in 2021).

**Conclusion:**
The company exhibits strong profitability, healthy cash flow coverage, a solid asset base, and an existing framework for hybrid capital. There are no red flags such as declining revenues, negative equity, or distress signals. Therefore, it is highly suitable for issuing hybrid bonds to optimize its capital structure.

<answer>Strongly Suitable</answer>