To assess whether TenneT Holding B.V. is suitable to issue hybrid bonds, we evaluate its financial profile, industry, and existing capital structure based on the provided annual report data:

1. **Industry and Business Model**: TenneT is a "transmission system operator" (TSO) and a state-owned utility (parent entity is the "Dutch State"). Utility companies generally have stable, predictable, and regulated cash flows, which makes them prime candidates for hybrid bonds. Hybrid bonds are heavily utilized by utilities to fund massive infrastructure projects while protecting their senior credit ratings.
2. **Capital Intensity**: The company is extremely capital-intensive. In 2022, its "Purchase Of Property Plant And Equipment..." (CapEx) was a massive €4.42 billion, requiring substantial external financing. 
3. **Existing Capital Structure**: The most compelling evidence of its suitability is that TenneT *already* relies on this financing tool. The data explicitly lists "Hybrid Capital" of €2.125 billion on its balance sheet for both 2022 and 2023. Additionally, it consistently pays distributions to these hybrid capital owners ("Dividends Paid To Hybrid Capital Owners" of €57 million). 
4. **Leverage Profile**: The company has total assets of €38.5 billion and substantial long-term borrowings of €19.0 billion. For highly leveraged, infrastructure-heavy, state-backed entities, issuing hybrid bonds is a standard practice to gain equity-like credit treatment from rating agencies without diluting the state's ownership.

Given that TenneT fits the textbook profile of a typical hybrid bond issuer (large, capital-intensive utility) and already successfully issues them, the company is exceptionally well-positioned to issue hybrid bonds. 

<answer>Strongly Suitable</answer>