Many households face a common challenge after installing a solar power system: solar power generation is intermittent. During the day when sunlight is abundant, the system generates excess electricity that cannot be stored and must be fed into the grid (in some regions, the feed-in tariff is low, resulting in limited returns). At night or on cloudy days, the solar system does not generate power, forcing households to rely on the grid for electricity. This prevents the full utilization of solar resources and leads to energy waste. PVBAT’s “hybrid inverter + lithium battery” solution precisely addresses the challenge of storing surplus solar power, maximizing the utilization of solar energy and enabling households to truly achieve “self-generation for self-consumption, surplus power storage, and emergency backup.” It is an excellent choice for a solar-storage combination solution.
The core logic of this solution lies in the hybrid inverter’s intelligent control, which “rationally allocates” solar power: during the day, when solar panels are generating electricity, the inverter prioritizes supplying power to household loads to meet daily energy needs; excess electricity is then fed into the lithium-ion battery via the inverter for proper storage; at night or on cloudy days, when the PV system is not generating power, the inverter automatically switches to a different power supply mode, releasing the stored energy from the lithium-ion battery to power household loads without relying on the grid; when the lithium-ion battery runs low, the inverter switches back to grid power to ensure uninterrupted supply, achieving seamless power transition and perfectly resolving the issue of utilizing surplus solar energy in households.
The solution’s key advantages lie in its “high adaptability and energy efficiency.” The PVBAT hybrid inverter is perfectly matched with its own 48V 628Ah lithium-ion battery, while also being compatible with lithium-ion and lead-acid batteries from other brands. Users can flexibly configure the inverter and battery capacity based on their PV system’s power output and electricity needs, without worrying about compatibility issues, making it a highly adaptable PV storage solution; The inverter’s built-in MPPT technology maximizes the capture of PV power generation, enhancing efficiency and reducing energy waste. The high capacity and long lifespan of the lithium-ion battery ensure the stability and durability of surplus power storage. Long-term use can significantly reduce electricity bills, achieving energy savings and cost reduction through PV systems.
Taking a 6kW PV system as an example, when paired with a PVBAT 6kW hybrid inverter and a 48V 628Ah lithium-ion battery, excess solar power generated during the day can be stored in the battery and used to power the home at night. This reduces grid electricity consumption by 10–15 kWh daily, resulting in monthly electricity savings of $50–$100. Additionally, during grid outages, the battery provides power to ensure normal household electricity supply—a win-win solution that highlights the core value of the PVBAT photovoltaic energy storage solution.
From an industry perspective, this integrated solution not only addresses the industry-wide challenge of storing surplus solar power but also drives the adoption of distributed solar power, providing a practical pathway toward achieving “carbon reduction” goals. At the same time, it delivers tangible economic benefits to residential users, making it the preferred solution for distributed solar energy storage.