| Renewable Energy Systems with Storage for Efate and Tanna (RESSET) |
Renewable Energy Systems with Storage for Efate and Tanna (RESSET)
The Renewable Energy Systems with Storage for Efate and Tanna (RESSET) project in Tanna, Vanuatu, was funded by New Zealand’s Ministry of Foreign Affairs and Trade (MFAT). Led by a consortium of consultants, including TTA, IM3, ECA, and Scinergy Pacific, the project focused on constructing a 1.16 MWDC solar PV farm and a 0.4 MW/2.5 MWh Battery Energy Storage System (BESS) at the Tanna power station. The system was designed to provide grid-forming capabilities, enhance energy reliability, reduce costs for end-users, and strengthen the capacity of Tanna’s concessionaire to operate and maintain solar PV and BESS systems. Additionally, the project aimed to create opportunities for women to develop skills and participate in the construction, operation, and maintenance of these assets.
Location
Tanna, Vanuatu
Client/Sponsor
MFAT, NZ
Consultants
TTA, IM3, ECA, Scinergy Pacific
Stakeholders
MFAT, UNELCO, DoE, VanPAWA
Scope
Design of 1.16 MWDC solar PV farm and a 0.4 MW/2.5 MWh BESS, both located at the Power station in Tanna
Expertise
Renewable Energy, Capacity Expansion Modelling, Technoeconomic Assessment, BESS, Solar PV, Grid Integration
Project Overview
Key stakeholders, including MFAT, VanPAWA, and the Department of Energy (DoE), collaborated to increase the renewable energy contribution to 76% for the Tanna grid. As a Senior Technical Advisor, Scinergy Pacific played a crucial role in providing technical expertise and optimizing system performance. The company conducted system design, capacity expansion modelling, and techno-economic assessments to maximize renewable energy integration. Scinergy Pacific also reviewed the initial concept note prepared by GGGI, ensuring a cost-effective and technically sound design while evaluating necessary network infrastructure upgrades for smooth integration.
Beyond system design, Scinergy Pacific assessed the environmental impacts, including waste management, and conducted an economic feasibility analysis covering capital and operational costs, fuel savings, emissions reductions, and tariff implications. The team also developed technical specifications to support procurement and implementation, contributing to MFAT’s business case and funding strategies. Through its expertise in renewable energy and grid integration, Scinergy Pacific played a key role in advancing Vanuatu’s energy transition, improving grid stability, and ensuring long-term sustainability.