ERG should use hybrid bonds only to a **limited-to-moderate extent** over the next 18 months.

Key considerations:

- **Business profile:** ERG is now primarily a renewable power company, with operations across several European countries. This gives it a relatively supportive business profile, but it is not equivalent to a fully regulated utility. Renewable generation benefits from low marginal costs and some contractual/subsidy protection, but still has market, resource, regulatory, and execution risk.

- **Leverage and balance sheet starting point:** Equity increased materially to about **€2.05bn** at year-end 2022 from **€1.57bn**, while total liabilities fell significantly. Financial liabilities also declined, especially current borrowings. Cash remained substantial at about **€393m**, although lower than the prior year. This suggests the company is not under acute balance-sheet stress.

- **Cash flow and debt service:** EBITDA rose strongly to about **€499m**, and operating cash flow was positive at about **€459m**. Interest paid was only about **€29m**, indicating good cash interest coverage. These figures do not point to a need for aggressive hybrid issuance to preserve credit quality.

- **Capex and growth needs:** ERG remains capital intensive, with property, plant and equipment purchases of about **€307m** and acquisitions/business investments during the year. The company is likely to continue investing in renewables growth, and hybrid debt could provide useful rating flexibility while funding expansion. However, there is no clear evidence of a transformational capex or M&A program requiring maximum hybrid capacity.

- **Refinancing pressure:** The group repaid substantial borrowings in 2022 and reduced current financial liabilities sharply. This lowers near-term refinancing pressure. There is therefore no strong case for 11.25% or 15% hybrid usage.

- **Cost of hybrids:** Market rates increased sharply in 2022. The 5–10 year swap curve moved from near zero/negative levels in 2020–2021 to around **1.7%-1.9%** in 2022, while subordinated nonfinancial IG spreads also widened. Hybrid issuance would likely be more expensive than senior debt and would increase average funding cost. That argues against aggressive use.

- **Existing hybrid starting point:** No outstanding hybrid bonds are indicated in the reported facts. Starting from zero hybrid capital, a large move directly to the S&P 15% equity-credit cap would be excessive unless rating pressure or funding needs were much more severe.

Overall, ERG has **some rationale** to introduce hybrids: renewable growth is capital intensive, and hybrid equity credit could provide useful leverage headroom. But the company’s improved equity base, strong EBITDA growth, positive operating cash flow, reduced financial liabilities, and absence of clear acute refinancing stress argue for a **moderate rather than high** recommendation.

A **3.75%** allocation would provide limited flexibility, but may understate the usefulness of hybrids for a capital-intensive renewable growth platform. A **7.5%** allocation better balances the benefit of meaningful S&P-adjusted leverage support with the higher cost of hybrid funding and the lack of immediate distress.

<answer>7.5%</answer>