To determine the extent to which A2A S.p.A. should utilize hybrid bonds, we evaluate its financial risk profile, capital structure, and overarching strategic needs against the provided hybrid issuance criteria.

1. **Leverage and Rating Headroom:** 
A2A S.p.A.'s reported Gross Operating Income (EBITDA) for 2022 was robust at €1.505 billion. Its net debt stands at approximately €4.3 billion (Gross Financial Liabilities of ~€6.89 billion minus €2.58 billion in Cash and Cash Equivalents). Thus, the company operates with a Net Debt to EBITDA ratio of roughly 2.8x.
Using the S&P Global Ratings framework for regulated and unregulated utilities (which typically fall under low to medial volatility tables due to transparent frameworks and stable cash streams), A2A generates Funds From Operations (FFO) to Net Debt in the mid-to-high 20% range. This offers substantial rating headroom, comfortably supporting its current solid Investment Grade profile (typically "BBB" range) without the pressing need for aggressive equity or leverage optimization. 

2. **Capital Expenditure and Refinancing:** 
While A2A maintains significant capital expenditures for its long-term energy transition and grid infrastructure pipeline (capex and M&A combined reaching ~€1.7 billion for 2022), it heavily over-funded itself during the period, drawing €4.34 billion in gross borrowings while repaying €2.78 billion. The firm ended 2022 with a robust cash pile of €2.58 billion, indicating low short-term refinancing needs and pre-funded liquidity for its expansion. It does not face any transformational downgrade risks that demand equity-credit support.

3. **Current Capital Structure & Cost of Debt:** 
An analysis of the company's equity breakdowns (such as the nature of "Other Reserves And Retained Earnings" and "Issued Capital") reveals that A2A S.p.A. currently does not have existing hybrid bonds in its capital structure. Furthermore, the interest rate environment steepened significantly in 2022, with the Euro corporate baseline and the subordinated delta ballooning (the 10-year swap rate soared to 1.927%, and the Sub-Sen Delta jumped to 2.295%). Issuing a hybrid bond in this macroeconomic environment would materially and unnecessarily increase their weighted average cost of capital compared to issuing traditional senior unsecured debt. 

Conclusion:
Given the company’s lack of existing hybrids, solid leverage headroom, pre-funded liquidity buffer, and the material cost increase that subordinated debt would introduce right now, there is no strategic or rating-preservation requirement for A2A to issue hybrid bonds.

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