Innovative Solar Energy Storage
A Greener Future
How Solar, Storage, and EV Charging Work Together for Energy Independence
The integrated solar storage system converts sunlight into electricity, stores excess energy, monitors, power generation, and discharges electricity when needed, reducing dependence on the power grid.
Discover Billion's Solar Energy Storage Microgrid Solution – integrating solar, battery storage, and EV charging for maximum energy independence and cost efficiency. Ideal for businesses and island nations.
Enhance renewable energy usage
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On-grid operation
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Solar-Plus-Storage microgrid
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Stabilize self-sufficient power
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Innovative Solar-Plus-Storage Systems for Sustainable Energy Use
As climate change intensifies and energy costs continue to rise, Pacific Island countries are facing severe energy supply challenges. Billion Group implemented innovative solar-plus-storage microgrid solutions in Palau, the Marshall Islands, and Tuvalu to achieve energy independence and low-carbon development, setting a successful benchmark for energy transition in island countries.
Challenges
Solutions
Billion and Billion Watts’ engineering teams have the ability to plan independent microgrids, integrate photovoltaics and energy storage, and overcome the common mutual exclusion of photovoltaic and storage integration. The disturbance caused by the weather (sunshine) of solar photovoltaics will make the voltage source established by the off-grid operation of the PCS unstable, and the Billion’s PCS can respond in a very short time and solve the problem perfectly.
Additionally, the EMS controls the output power of PV inverters and adjusts it dynamically based on battery capacity. The EMS control will match the application of solar power generation and PCS to achieve optimal operation. Billion and Billion Watts’ strength lies in tailoring solutions to customer requirements and applications, delivering the most comprehensive and well-considered plans.
Product Director of Billion Group, Mr. Alex Hsieh
Overall Construction Scale
Highlights & Solutions
Integrated Solar-Plus-Storage System
(On-Grid)
Dynamically adjust the power system at any time to optimize electricity costs and resource utilization
- Efficient Power Storage: Solar PV > Load, the load is powered by solar energy, with excess electricity charging the storage battery
- Intelligent Backup: Solar PV < Load, both solar power and the storage battery supply the load (the battery is prioritized, with grid power used only when the battery is insufficient).
- Pure Energy Storage Power Supply: Solar PV does not generate electricity and the battery capacity is sufficient, and the load is supplied by the energy storage battery.
- Grid Support and Energy Storage Charging: Solar PV does not generate electricity and the battery capacity is insufficient, and the grid powers the load and optionally charges the battery as per scheduled settings.
Independent Solar-Plus-Storage Microgrid
(Off-Grid)
Independent solar-plus-storage microgrid delivers stable, self-sufficient power to the entire area
- PCS Parallel Connection: Through PCS parallel, the solar storage microgrid can be separated from the power company to build an independent power system to provide a stable supply for the load.
- Dynamic Power Adjustment: The EMS (Energy Management System) dynamically adjusts PV inverter output based on battery capacity. Excess energy is stored in the battery when generation exceeds load demand, and the storage system supplies power when generation is insufficient.
- Maximize Power Generation Efficiency: The built-in MPPT of PV inverters continuously tracks the maximum power point, ensuring optimal efficiency.
- Bidirectional Charging and Discharging: Supports DC & AC bidirectional charging and discharging, allowing excess power to be stored flexibly for stable supply during nighttime or low sunlight conditions.
Case Studies
Success Story - Palau
Self-Sufficient Energy and Efficient Utilization
Palau has long relied on imported diesel for power generation, which has high electricity prices and serious carbon emissions. Agriculture, fishery facilities and residential electricity demand are diverse, and there is an urgent need for a stable and sustainable supply of green energy.
Success Story - Tuvalu
Creating Self-Sufficient Energy for Farmers
Faced with multiple challenges such as extreme weather, insufficient infrastructure and high cost of electricity. Billion provided flexible and efficient solar-plus-storage solutions to ensure reliable energy for smallholding loads and residents' urgent power needs.
Success Story - Marshall Islands
Green Energy Transition in Saline Environment
The Marshall Islands has long relied on imported diesel power generation, with high energy costs and unstable supply, and transited to renewable energy and utilize solar power as an alternative, which becomes the key to achieving sustainable development.
