Financing for cross-border transmission in emerging markets is evolving beyond sovereign loans, with dedicated project companies, blended finance from development banks and private investors, and long-term transmission-service agreements emerging as the templates for interconnectors and backbone lines.

The shift reflects the scale of the pipeline: regional power pools are advancing links that individual utilities cannot fund alone, and lenders want structures that ring-fence revenues and allocate risk between the countries involved.

What the structures look like

Special-purpose transmission companies owned by two or more utilities or by private developers under concession; capacity or availability payments from system operators; multilateral guarantees for cross-border payment risk; and standard construction and operations contracts. Read our report on accelerating interconnector projects.

Supplier implications

Procurement follows lender rules with international competitive bidding; equipment lead times, particularly for transformers and HVDC converters, drive project schedules. See our grid section.

Background: two utilities, two regulators, one line

A cross-border transmission line is technically simple and commercially difficult. It must be financed and owned across at least two jurisdictions with different tariffs, currencies, credit ratings and regulators, and its revenue depends on power actually flowing — which depends on generation and demand on both sides. That is why many interconnectors in the African and Southeast Asian power pools were studied for years before construction. Structures that share risk between utilities, lenders and private investors are now unlocking them, supported by the World Bank, the African Development Bank, the ADB and regional bodies such as the Southern African Power Pool and the West African Power Pool.

What the structures look like, in more detail

• Sovereign-backed utility loans, the traditional model, with each utility financing its own segment.
• Special-purpose transmission companies jointly owned by the utilities, sometimes with private equity, and paid through wheeling or capacity charges.
• Independent transmission projects (ITPs) — private build-own-operate lines under long-term availability contracts, as pioneered in Latin America and now appearing in Africa.
• Merchant or semi-merchant links that earn from price differences between markets, viable only where liquid trading exists.
• Blended finance and guarantees from development banks and export credit agencies to cover political and payment risk.

What it means for suppliers to utilities and OEMs

Financing structure determines the buyer and the procurement rules. Utility-financed lines follow national or development-bank tender procedures; ITPs and SPVs procure like private developers with EPC contractors leading. Either way, each project needs conductors, towers, substations, transformers and reactors, protection and control to IEC 61850, telecoms and metering at the border. Suppliers should track interconnector pipelines and financing milestones on our grid reliability page — financial close is the trigger for equipment procurement.

Quick answers

What is an independent transmission project?

A transmission line built, owned and operated by a private company under a long-term contract with a utility or system operator, paid for availability rather than energy flow.

Why are cross-border lines hard to finance?

Because revenue depends on two or more utilities, regulators and currencies, and on power actually flowing across the border.

Sources and further reading

• World Bank — Energy — regional transmission financing
• African Development Bank — Energy — interconnector projects
• Southern African Power Pool — regional projects
• West African Power Pool — regional master plan
• EnergiTech Media — Interconnector projects accelerate — related coverage

This article was researched and written by the EnergiTech Media editorial team and last reviewed in August 2026. We update country and sector guides as tenders, plans and regulations change. Spotted something out of date? Email support@energitechmedia.com.