FAQ

Why is battery energy storage important in new energy power generation applications? 2023-07-13 08:47:48.000

Renewable energy power generation is inherently random, and its instability will lead to unstable power quality. Users with high requirements for power quality may not be able to accept it. Therefore, energy storage is needed to make up for the defects of new energy power generation. The core role of energy storage It is used to solve the problem of unstable power generation of new energy. When your solar panels generate energy, your home only uses the electricity you need at that time. At this time, the remaining solar energy can be stored and used when the sun is not bright enough. The energy storage device can power the home and make your home Energy consumption is optimized, you reduce your dependence on external factors such as rising electricity prices, and you turn your home into a green living environment. In distributed energy systems, battery energy storage systems can be used as backup power sources to provide emergency power when the main grid fails. In addition, the battery energy storage system can also be used to regulate the daily load of the power system to balance the peak and valley load of the grid. Batteries can also be used in stand-alone power systems, especially in regions that lack large power systems. Such a system can independently adjust the power supply to meet the local power demand.

How to choose the appropriate output power and electricity for the energy storage system? 2023-07-13 08:48:28.000

When selecting the power and capacity of a lithium-ion battery energy storage system, multiple factors need to be considered comprehensively. Generally speaking, it needs to be determined according to actual needs and application scenarios. It is necessary to ensure that the maximum continuous output power that the energy storage system can provide is greater than the maximum power when the load is working, and it is necessary to consider whether there is a possibility of increasing the load power in the middle and late stages of actual use. In the selection of power, it is necessary to fully consider the maximum working time of the load and leave a certain margin. At the same time, it is also necessary to consider the low temperature situation and the fact that the battery power of the energy storage system will decay to a certain extent after long-term use. Due to the electrochemical characteristics of lithium-ion batteries, the actual available power of the battery will shrink in a low-temperature environment, and the battery capacity will undergo normal capacity fading after long-term use.

How long can your equipment run on energy storage system power? 2023-07-13 08:48:58.000

The power supply time of the energy storage system depends on the power of the actual load. For example, a 500W microwave oven running at maximum power for 2 hours will consume 1kWh. The same is true for a 50W LED bulb that is lit for 20 hours. So a fully charged 10kWh energy storage system could run the aforementioned microwave for 20 hours, or the LED light bulb for 200 hours, for a total operating time of 18.2 hours when both are used together.

Will I still be able to power my appliances when a power outage occurs? 2023-07-13 08:49:29.000

In the event of a power outage, the energy storage system will act as an emergency power source. When a power outage occurs, the energy storage system can take over in less than 20 milliseconds, and you might not even notice the lights flickering. You may choose to connect some of the important consumers in your home to the backup output of the household battery. This avoids problems with refrigerators, freezers, computers, etc. In some cases, it's even possible to power the entire house with excess solar energy stored in the battery.

After the OYSD energy storage system has been installed and used for a period of time, can I still increase its output power and storage capacity by adding modules? 2023-07-13 08:49:55.000

Our home energy storage system supports power and power expansion functions, which can increase power and storage power by adding battery modules. When adding modules, it needs to be wired and installed by professionals to avoid problems caused by wrong installation.

Why can the AC output energy conversion efficiency of OYSD energy storage system reach 99.5%? 2023-07-13 08:50:18.000

Because our energy storage system adopts the world's leading dynamic series technology inside, it directly outputs AC by adjusting the number of batteries connected in series so that the total voltage of batteries connected in series changes with a sine wave. Very low (<1mΩ), omitting the low-efficiency PCS, so a very high-efficiency output can be achieved.

When the grid voltage is unstable, can the OYSD energy storage system achieve a stable output voltage? 2023-07-13 08:50:44.000

The OYSD energy storage system has the ability to stabilize the instantaneous voltage fluctuation of the household power supply system. When the mains voltage or frequency is abnormal, it can still maintain a stable power supply to household appliances and ensure the normal operation of household appliances.

What is the payback time for the cost of installing an energy storage system? 2023-07-13 08:51:14.000

This largely depends on the specific application. Factors that may have a strong influence are: Are there solar panels installed? What is the current electricity bill? Is it possible to make a profit by taking advantage of the peak-valley electricity price difference? Can I enjoy government subsidies for installing energy storage systems? Does the location incur a fee? How long is the service life of the energy storage system? Not only do we carry out extensive simulations using specialized software, but we also regularly study the results actually obtained by energy storage systems in practice. We typically see payback periods of 7 to 9 years. However, energy storage systems offer many more individual benefits, so looking at payback time alone is not enough. With a home battery, you'll be less exposed to future electricity price increases. Not insignificant when you consider that electricity prices have risen by an average of 6% per year over the past decade! You are doing your part to reduce CO2 emissions and global warming. You become part of the solution.

Besides the energy storage system, do I need other components? 2023-07-13 08:51:36.000

The energy storage system we offer is a complete package. There is no need to purchase any additional components (such as a separate battery inverter). Not only does this reduce installation and usage complexity, but you also have only one point of contact should problems arise.

How Fast Are OYSD Energy Storage Systems Aging? 2023-07-13 08:52:17.000

We can explain this in terms of battery cycles. A cycle is a full charge and discharge of the battery. The number of battery pack calculation cycles is calculated by accumulating the amount of charge and discharge. For example, a 100AH battery pack will only be counted as a charge-discharge cycle when the cumulative charge and discharge reaches 100AH. They are only charging 20% and discharging 20% of the storage capacity, and it is calculated as a complete charge and discharge cycle after every 5 charges and discharges. Our energy storage system guarantees that after a complete 10,000 cycles, the storage capacity of the home battery will only decrease by 20% at most. Assuming that you charge 50% and discharge 50% every day, a total of 2 times, the number of cycles in one year is 365 times. Based on the cycle life of 10,000 times, the theoretical service life is 27 years. The aging speed of the energy storage system is also related to the input and output power, the way of use and the working environment temperature. The greater the power, the greater the discharge depth, and the high or low ambient temperature will accelerate the aging of the energy storage system.

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