To assess the suitability of Terna S.p.A. for the issuance of hybrid bonds, we can evaluate its business and financial profile against the provided criteria:

1. **Industry and Business Risk Profile**: Terna S.p.A. operates as the transmission system operator (TSO) for Italy's national electricity grid. As detailed in the standard industry characteristics for "Regulated Utilities," the company benefits from a highly stable, regulated, and monopolistic business model with transparent and predictable tariff-setting procedures. This generates highly visible, recurrent cash flows, satisfying the most critical condition for hybrid bond issuance. 

2. **Capital Structure and Ratings Headroom**: European TSOs like Terna typically have substantial capital expenditure (capex) needs to fund the energy transition, upgrade the grid, and connect renewable energy sources. With an S&P Net Debt / EBITDA ratio of 4.35x and an FFO / Net Debt ratio of 17.24%, Terna fits the profile of a solid Investment Grade issuer (typically in the BBB area). In this context, hybrid bonds act as a strategic tool to defend current credit ratings and increase rating headroom by receiving 50% equity credit from rating agencies, thus avoiding the dilution of common equity while supporting heavy capex pipelines.

3. **Actual Issuance Record**: The financial data definitively confirms Terna's suitability, as the company effectively issued its inaugural perpetual hybrid bond in 2022 (evidenced by the €989 million recorded under "Equity Instruments Perpetual Hybrid Bonds"). The prompt notes that an entity having recently issued hybrid bonds is highly likely to be strongly suitable. 

4. **Market Access and Financial Policy**: Terna demonstrates a strong financial policy and high credibility in institutional capital markets. The hybrid issuance serves a core, structural funding rationale to continuously align its debt metrics with target rating thresholds during a phase of robust network investments.

Given its regulated utility status, strong cash flow visibility, capex funding requirements, and its proven track record of successfully issuing hybrid capital in 2022, the company aligns perfectly with the criteria for being "Strongly Suitable."

<answer>Strongly Suitable</answer>