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FAQ
Residential Energy Storage
What is a residential energy storage system?
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A residential energy storage system stores electricity from solar panels or the grid and releases it when needed. It can help improve solar self-consumption, provide backup power during outages and support more flexible household energy use.

Which products are suitable for home energy storage?
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Residential options include all-in-one ESS, stacked ESS, rack-mounted ESS, wall-mounted or floor-standing lithium batteries and off-grid solar inverters. The best choice depends on household load, required backup time, available space and installation met

What household loads can be supported during a power outage?
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Typical backup loads include lighting, refrigerator, WiFi router, computer, TV, small appliances and other essential devices. High-power loads such as air conditioners, pumps or electric heaters require careful sizing based on inverter power and battery c

How do I calculate the right battery capacity for my home?
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List the devices you want to power, their rated power and expected running hours. We can help refine the configuration based on real household usage and local grid conditions.

What battery chemistry use for residential storage?
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Residential energy storage products are designed around lithium battery technology, and many home storage solutions use LiFePO4 batteries, which are widely valued for safety, stability and long service life.

Can I monitor my home energy system remotely?
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Selected Cosuper Energy residential products support WiFi connectivity and APP remote monitoring, allowing users to view operating status and energy data. Please check whether the specific model includes a communication module.

What is the difference between all-in-one, stacked, wall-mounted and rack-mounted ESS?
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All-in-one ESS integrates inverter and battery into one compact system. Stacked ESS uses modular battery units for flexible capacity expansion. Wall-mounted batteries save floor space for home installation. Rack-mounted batteries are often used when multi

Commercial & Industrial Energy Storage
What C&I ESS products offer?
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We offer C&I ESS solutions including PV-storage-diesel microgrid systems such as ESS-50, ESS-112 and ESS-261. These systems are designed for different project capacities and application scenarios.

What are the common application scenarios for C&I ESS?
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Common applications include peak shaving, valley filling, backup power, PV self-consumption, diesel generator optimization, off-grid power supply, microgrids, commercial buildings, farms, factories and areas with unstable grid supply.

Can C&I ESS integrate solar, batteries and diesel generators?
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Yes.The PV-storage-diesel microgrid systems are designed to integrate photovoltaic power generation, battery energy storage and diesel power generation, helping users build a more reliable and flexible energy supply system.

How does C&I energy storage help reduce electricity costs?
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C&I energy storage can reduce electricity costs through peak shaving, valley filling, peak-valley price arbitrage, higher solar self-consumption and reduced diesel generator runtime. Actual savings depend on local tariffs, load profile and system operatio

Is C&I ESS suitable for areas with unstable grids?
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Yes. C&I ESS is especially valuable in areas with frequent outages, unstable voltage or high diesel fuel costs. The system can help stabilize power supply and reduce dependence on diesel generators.

How long does installation and commissioning take?
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Installation and commissioning time depends on system capacity, site readiness, grid connection requirements and project complexity. Cosuper Energy can provide model-specific documentation and technical support to support efficient deployment.

Vehicle-mounted Energy Storage
What vehicle-mounted energy storage solutions provide?
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Vehicle-mounted energy storage covers RV solutions, lithium batteries, inverters, charge controllers, RV central control systems, low-speed vehicle solutions and industrial vehicle solutions.

Can systems be used in RVs or caravans?
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Yes, Vehicle-mounted systems are suitable for RVs, caravans and mobile living scenarios. They can provide power for lighting, refrigerators, laptops, entertainment devices, small appliances and other onboard loads.

What appliances can a vehicle inverter power?
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A vehicle inverter converts DC battery power into AC power for devices such as laptops, small kitchen appliances, lighting, TVs, chargers and power tools. The inverter power rating must be higher than the load power, especially for devices with high start

What is an RV central control system?
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An RV central control system helps users view and manage key electrical information, such as battery status, inverter operation, charging status and connected loads. Functions may vary by configuration.

Portable Power Station
What is a portable power station?
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A portable power station is a rechargeable mobile energy storage device. It can provide power for electronics, lighting, small appliances, outdoor equipment and emergency backup needs.

Which portable power station series offer?
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Portable power station options include SP Series and NE/NP Series. Product resources also include AC portable power station and DC portable power station specifications. Please compare capacity, output ports and application scenarios before selection.

What devices can a portable power station power?
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It can power devices such as mobile phones, laptops, cameras, drones, lights, routers, small fans, mini refrigerators and other low-to-medium-power equipment. Always check the device rated power and startup power.

Can I charge a portable power station with solar panels?
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Selected portable power station models support solar charging. The solar panel voltage, current and connector must match the product input specification.

Can it be used as emergency backup power at home?
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Yes. A portable power station can provide short-term backup power for essential low-power devices such as phones, lights, routers and laptops. For whole-home backup, a residential energy storage system is more suitable.

Is it suitable for camping, outdoor work or field operations?
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Yes. Portable power stations are suitable for camping, photography, field work, outdoor events and temporary power supply. Keep the unit dry, ventilated and away from high heat or direct rain.

How do I choose the right portable power station capacity?
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Choose capacity based on the devices you need to power, their wattage and expected runtime. For longer outdoor trips or higher-power appliances, select a larger capacity model and confirm output power compatibility.

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