To assess whether REN - Redes Energéticas Nacionais, SGPS, S.A. is suitable to issue hybrid bonds, we examine its financial position and profitability based on the 2022/2023 annual report data:

1. **Profitability and Stability:** The company demonstrates consistent profitability with a profit of 111,771,000 EUR in 2022-2023 (up from 97,153,000 EUR the previous year). Basic EPS also increased from 0.15 to 0.17 EUR/share.
2. **Equity Position:** Equity is robust, totaling 1,517,534,000 EUR, providing a solid cushion for potential hybrid debt issuance.
3. **Debt Structure:** While the company has significant borrowings (Long-term borrowings of 1,695,362,000 EUR and Current borrowings of 638,944,000 EUR), it maintains a stable asset base (6,451,596,000 EUR total assets).
4. **Business Nature:** As a utility company (Redes Energéticas Nacionais) with regulated revenues, it typically exhibits the stable cash flows required to service the interest payments associated with hybrid instruments.
5. **Market Access:** The company is a large, established entity with a clear track record of dividend payments and financing activities, suggesting it would likely be viewed as a credible issuer in the hybrid market.

Given the stability of earnings, the significant asset base, and the nature of the utility business, the company is well-positioned to manage the characteristics of hybrid securities (which function as debt with equity-like features).

<answer>Strongly Suitable</answer>