
Led by the Asian Development Bank (ADB) and co-financed by Australia, the European Union, the Second Danish Cooperation Fund for Renewable Energy and Efficiency for Rural Areas, and the Global Climate Facility, OIREP’s focus was installation of solar energy capabilities to nine outer islands of Tonga, with the aim of increasing the reliability, efficiency and affordability of electricity on these islands. [pdf]

Pure sine wave off-grid inverter Output power factor PF = 1.0 Wide photovoltaic input voltage range 120Vdc ~ 500Vdc 80A photovoltaic charging controller with advanced DSP control Battery balancing function optimizes battery performance and prolongs life cycle Run without battery Up to 12 parallel machines can be operated, single-phase/three-phase parallel machines are supported, and parallel machines without averaging are supported. [pdf]

Ulaanbaatar, 25 September 2025 – The China International Development Cooperation Agency (CIDCA), the United Nations Development Programme (UNDP), and the Chingeltei District of Ulaanbaatar launched the “Upgrading Ger Districts in Ulaanbaatar Through Solar Photovoltaic System Implementation” project to tackle air pollution and accelerate Mongolia’s just energy transition. [pdf]

This article will introduce in detail how to design an energy storage cabinet device, and focus on how to integrate key components such as PCS (power conversion system), EMS (energy management system), lithium battery, BMS (battery management system), STS (static transfer switch), PCC (electrical connection control) and MPPT (maximum power point tracking) to ensure efficient, safe and reliable operation of the system. [pdf]
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