November 19, 2021 Read More →

Tahiti diesel generators to be replaced by battery storage system

Renew Economy:

A 15MW/10.4MWh battery energy storage system is to be built in Tahiti, helping the French territory in the heart of the Pacific save millions from the replacement of diesel generators, and help reach its target of 75 per cent renewables by 2030.

The battery will be built by Kokam, a subsidiary of SolarEdge, and will be integrated with a virtual synchronous generator (VSG) system developed by Siemens.

The new system – due to begin operations late next year – will begin to replace Tahiti’s spinning reserve diesel generators, which often run in case another generator experiences an outage, and savings of $2.2 million in diesel costs are expected each year.

The Tahiti battery will operate in a similar fashion to another highly successful Kokam battery, a 35MW/12MWh facility operated by Alinta at Mt Newman in Western Australia, where it has removed the need for spinning reserve from gas generators, saved money, cut emissions and improved reliability.

Tahiti currently sources around 36 per cent of its electricity supply from renewable energy – around 30% from hydroelectric stations and 6% from solar PV – and the remainder is heavily dependent on diesel, which is not only dirty but very expensive.

[Joshua Hill]

More: Big battery to displace diesel and help Tahiti leap to 75 per cent renewables

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