Client Background:
A European solar energy company operating multiple grid-connected photovoltaic power plants. One of their commercial rooftop sites uses 126 solar modules and two string inverters from a leading European brand, totaling 27kWp of installed capacity.
Client Needs:
The client aimed to optimize solar energy revenue by shifting daytime generation to night-time grid feed-in, when electricity prices are higher. They needed a battery storage solution compatible with their existing inverter setup and grid export requirements.
Tongbang's Solution:
Tongbang Technology proposed a modular and reliable lithium battery system based on 51.2V 300Ah (15.36kWh) LiFePO₄ batteries.
System Proposal:
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Battery Model: 51.2V 300Ah LiFePO₄
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Configuration: 10 floor-mounted units
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Total Capacity: 153.6 kWh
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Application: Time-shifted grid export to capture night-time tariffs
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Support: Sample unit available for integration testin
Key Benefits:
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CE, UN38.3, MSDS certified
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Compatible with mainstream hybrid and AC-coupled inverters
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Smart BMS with CAN/RS485 communication
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Tailored to fit commercial solar applications
Outcome:
The solution helped the client assess technical feasibility and cost-effectiveness for enhancing solar ROI through energy storage. Tongbang showed strong support capacity and readiness for European market partnerships.