Security and transition: How energy is impacting sovereign debt

Energy security and the low-carbon transition are becoming material drivers of sovereign debt risk, requiring country-level analysis beyond headline import dependence.

• Italy and Ireland rely on fossil-fuel imports for most of their energy needs, leaving them exposed to geopolitical energy shocks, while Spain’s reliance on renewable electricity supports Aviva Investors’ preference for its debt over Italy’s.
• Hungary obtains around 40 per cent of its energy from nuclear power, and drought-related disruption to nuclear capacity created inflation, growth and asset-price risks.
• Emerging markets are expected to account for 80 per cent of additional global electricity consumption between 2026 and 2030, driven by income growth, higher cooling demand and data-centre construction.
• Pakistan reached 55 per cent clean electricity production in 2026, yet declining generation at several power plants contributed to prolonged blackouts in August.
• Distributed solar can reduce fossil-fuel imports, current-account pressure and subsidies, while also shrinking the customer base of state utilities and increasing fiscal risks when grid investment remains necessary.

Takeaway: Sovereign bond investors should combine top-down energy dependency measures with bottom-up assessments of grids, governance, utilities and distributed generation, while favouring countries that actively manage transition-related vulnerabilities.