The two battery storage facilities use Storage GEM®, the innovative modular energy storage container technology developed by the Akuo Group. A total of 8 such containers have thus been deployed on Tongatapu, the Tonga archipelago’s main island: three Storage GEM® for Tonga 1 and five for Tonga 2.
[pdf] As opposed to independent solar containers that generate electricity alone or independent energy storage containers requiring additional solar components, this technology integrates photovoltaic power generation, energy storage, and smart energy management technologies into a pre-fabricated, weather-tight box.
[pdf] Battery Storage System – typically lithium-ion or advanced lead-acid batteries to store excess solar energy. Inverter and Power Electronics – convert DC to AC for practical use and manage system performance.
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