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Oceania & Pacific / Commercial & demonstration

Vava’u Tonga Microgrid

Organizations, planners, suppliers, equipment, controls, and reported system specifications—with source-level citations.

CoverageDetailed public record
Named organizations5
System facts8
Sources reviewed1
Last researched2026-07-19

Vava'u's 2013 PV-diesel hybrid plant was funded by the United Arab Emirates, managed by Masdar, executed by Ingenero, and integrated into Tonga Power's diesel network with SMA controls and inverters.

Research status
Operational; original hybrid plant commissioned in November 2013
Historical classification
Commercial & demonstration
Reported capacity
1,442 kW
Coordinates
-18.68052, -173.98619
Evidence note: “Every company” cannot be proven from public material alone. This page lists every organization found in the recovered record and reviewed sources, preserves unknown roles, and explicitly marks undisclosed controller or equipment details.
Report missing evidenceResearch methodology

Project delivery

Who was involved in Vava’u Tonga Microgrid?

5 publicly identified organizations. Where a recovered source named a participant without explaining its work, the role remains explicitly unspecified.

Organization

Government of the United Arab Emirates

Grant funder [1]

Organization

Ingenero

Executing contractor / EPC [1]

Organization

Masdar

Grant and project manager [1]

Organization

SMA Solar Technology

PV inverter, battery inverter, and hybrid controller supplier [1]

Organization

Tonga Power Limited

System operator [1]

System evidence

Reported capacity and specifications

Values can describe different project phases or components. Source citations are attached to each figure so discrepancies remain visible.

Installed PV
500 kW; 1,680 PV modules [1]
Diesel generation
2 × 600 kW, 2 × 186 kW, and 1 × 300 kW [1]
Battery bank
120 × 1,000 Ah batteries [1]
Reported annual yield
695 MWh [1]
Reported diesel savings
225,000 liters per year [1]

Controls and hardware

Equipment and controller details

Manufacturer and model are shown only when a source names them. Generic descriptions are not converted into guessed product assignments.

01

Microgrid / hybrid controller

SMA — Fuel Save Controller

Coordinates demand-based PV feed-in with the operating diesel network. [1]

02

PV inverter

SMA — Sunny Tripower 20000TL Economic Excellence

21 units. [1]

03

Battery inverter

SMA — Sunny Backup SBU 5000

15 units. [1]

Provenance

1 source

Primary owner, government, university, supplier, and engineering sources are preferred. Archived references preserve claims whose original pages moved or disappeared.

  1. [1]

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