SolarDyna off-grid energy storage System: Long service life, low failure rate, high cost performance, solving electricity usage problems
Introduction
SolarDyna focuses on off-grid inverters for households and household energy storage. It offers full-capacity products of 5 KWH, 10 KWH, 12 KWH, 15 KWH and 20 KWH for families in remote islands and mountainous areas with unstable power supply, as well as ordinary users who want to save on electricity bills. The system uses A-grade battery cells and high-level BMS. The battery cycle can reach 6,000 times and supports upgrading to 8,000 times. The core components are guaranteed for 5 years and can be extended for warranty. The failure rate is low. At the same time, control costs. On the basis of ensuring quality and after-sales service, offer prices that users can accept. It can also be combined with photovoltaic systems to form a photovoltaic storage solution, effectively solving the pain points of electricity usage.
- Class A Battery Cells: Strengthening the Foundation of Performance and Quality
All products adopt A-grade battery cells, which are the reliable core of the system. In terms of performance, the charging and discharging efficiency of A-class cells remains stable at over 95%, wasting 3% to 5% less electricity than B/ C-class cells. For 10kwh power system as an example. If it is charged and discharged once a day, an additional 10.95 to 18.25 kwh of electricity can be retained in a year. This provides a more sufficient power supply guarantee for families in outlying islands and mountainous areas.
In terms of quality, A-grade battery cells have undergone strict screening, with voltage differences controlled within ±5mV to prevent issues such as local overheating and rapid capacity attenuation. Actual measurements show that after 6,000 cycles, the capacity retention rate of A-grade cells still exceeds 80%, while the capacity decline of B-grade cells may exceed 30%. This is also the key reason why we dare to promise A 5-year warranty. Users with high lifespan requirements can also increase the cycle times to 8,000 through customization, reducing subsequent replacement costs.
Ii. Advanced BMS: Full-Scenario Fault Protection
The low system failure rate is inseparable from the guarantee of a high-level BMS. It can monitor from multiple dimensions and respond in milliseconds, building protection from three scenarios: charging, discharging and standby, reducing battery failures by over 90%.
During charging, the BMS monitors the voltage, temperature and current of the battery cells in real time. When in standby mode, it conducts an inspection every 0.5 seconds. If the consistency deviation of the battery cells exceeds 10mV, it will automatically balance without the need for manual intervention, which not only prevents faults but also reduces after-sales service. Data shows that the average annual repair rate of systems equipped with this BMS is less than 2%, far lower than the industry average of 5%.
Datafication: Payback Period and Overcoming Difficulties
The payback period can be calculated
If there are local photovoltaic subsidies or higher electricity prices (such as 1.2 yuan per kwh for commercial electricity), the investment can be recovered within 12 to 15 months.
- Solve practical predicaments
For families in outlying islands and mountainous areas, a 15KWH power system can meet the basic electricity needs such as lighting and refrigerators, providing continuous power supply for more than three days. Combined with pv systems, it can operate off-grid, freeing them from the reliance on unstable power grids. For areas with weak power supply, the system output voltage deviation is controlled within ±2%, protecting household appliances from voltage fluctuation damage and reducing maintenance and replacement costs.
Meeting daily electricity needs, it can also store electricity to cope with rainy days, enhancing the autonomy of electricity usage.
