Distribution grids, mini-grids and interconnectors: Value chain
Local monopolies, Indian discoms and the funders of mini-grids
What this tab covers Who does what, from equipment makers to builders, owners, operators, traders and users, with the leading companies at each step.Equipment makers supply transformers, switchgear and meters; distribution system operators own and run local networks; mini-grid developers and their financiers serve off-grid areas; interconnectors are owned by transmission companies, often jointly across a border.
The chain
Switchgear and transformer makers Distribution system operators (advanced economies) Distribution companies (India) Mini-grid finance and programmes Interconnector owners Funders and regulators of interconnection| Stage | What happens | Leading companies |
|---|---|---|
| Switchgear and transformer makers | Medium-voltage switchgear, distribution transformers and automation | ABB (Switzerland) Hitachi Energy (Switzerland/Japan)141522 |
| Distribution system operators (advanced economies) | Own and maintain local networks and connect customers, paid through regulated network charges | Enedis (France) E.ON (Germany)1517 |
| Distribution companies (India) | Supply and bill customers, collecting revenue and reducing losses | Adani Electricity Mumbai (India), ranked first in the government's 2025 ratings Noida Power Company (India), ranked second5 |
| Mini-grid finance and programmes | Development banks and investors fund connections and equity for distributed renewable energy companies | World Bank Group (international) African Development Bank Group (international) Zafiri (distributed renewable energy investor, Africa) Africa50 (Africa)9 |
| Interconnector owners | Build and own cross-border links, often as joint ventures | INELFE, owned equally by Red Eléctrica (Spain) and RTE (France)12 |
| Funders and regulators of interconnection | Set targets, approve investment and co-fund projects | European Commission, Connecting Europe Facility (EU) European Investment Bank (EU)1013 |
Distribution operators are local monopolies, regulated on what they may charge. Investment is rising: E.ON plans about EUR 40 billion for its energy networks in 2026 to 2030. Indian distribution companies as a group moved from a loss of INR 25,553 crore in FY2023-24 to a profit of INR 2,701 crore in FY2024-25. Mini-grid developers often depend on subsidies or results-based grants, because cost-covering tariffs can be far above what poor customers can pay; only 2 of 39 African utilities studied by ESMAP have cost-recovery tariffs.
Sources
- Adani Electricity Mumbai, Noida Power and Gujarat discoms top govt ratings Business Standard, 2025
- Mission 300 Fact Sheet Rockefeller Foundation / Mission 300 partners, 2026
- Money on the line: scaling electricity interconnection for Europe's energy future Ember, 2025
- Spain-France submarine interconnection Red Eléctrica, 2025
- EIB supports with EUR 1.6 bn the strategic Bay of Biscay electricity interconnection between Spain and France European Investment Bank, 2025
- SF6-free medium-voltage switchgear ABB, 2025
- Enedis and ABB partner on SF6-free switchgear Enlit World, 2025
- E.ON continues growth path in 2025 and delivers on energy transition E.ON (via EQS News), 2026
- Hitachi Energy invests additional USD 250 million to address global transformer shortage Hitachi Energy, 2025