BATTERY ENERGY STORAGE SYSTEMS (BESS)
SUN-BK Micro Hybrid ESS — balcony energy storage system 2.56–5.12 kWh
Country: China · Model: SUN-BK Micro Hybrid ESS
A balcony storage unit with a capacity of 2.56 or 5.12 kWh and an AC output power of up to 2.5 kW. It plugs into an ordinary household socket and works together with a balcony solar plant in an apartment or a small house.
- Capacity
- 2.56 or 5.12 kWh
- AC power
- up to 2.5 kW
- Conversion efficiency
- 96.5 %
- Switchover to backup
- ≤ 4 ms
Technical specifications
| Capacity | 2.56 or 5.12 kWh |
|---|---|
| AC power | up to 2.5 kW |
| Conversion efficiency | 96.5 % |
| Switchover to backup | ≤ 4 ms |
| Modes | grid-tied, off-grid/portable, AC coupling with a balcony solar plant |
| Customs codes (for reference) | |
| HS code | 8507.60 |
| UKTZED code (Ukraine) | 8507600000 |
| CN code (EU) | 85076000 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
The device has three operating modes: grid-tied, off-grid or portable, and AC coupling with an already installed balcony plant. In AC coupling mode it stores the microinverter energy that would otherwise have to be fed into the grid, and returns it in the evening. Export limiting works wirelessly, so no cable has to be run from the meter to the storage. When the grid is lost, the switchover to battery power takes no more than 4 ms, and the router, refrigerator or boiler keep running without restarting. The conversion efficiency is 96.5 %. Portable mode turns the storage into a power source at a country house or in a garage where there is no grid socket. The 5.12 kWh version has twice the capacity at the same 2.5 kW power.
How to choose
The choice between 2.56 and 5.12 kWh depends on how much energy the balcony plant produces in the daytime above its own consumption and how much is needed in the evening and at night. The 2.5 kW power is the same for both versions and limits the simultaneous load, so an electric kettle and a boiler cannot be started together from the storage. For a house with a three-phase supply the ALL-IN-ONE HOME ESS with 5–20 kW inverters and 16 kWh modules is more suitable, and the C&I ESS with PCS from 100 kW is intended for businesses.
Request a price and lead time
SUN-BK Micro Hybrid ESS — balcony energy storage system 2.56–5.12 kWh. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Can the balcony storage be connected to an ordinary socket?
Yes, the system is designed to be connected to a household socket, and the AC output power is up to 2.5 kW.
How fast does the balcony system switch to backup?
When the grid is switched off, the transfer to battery power takes no more than 4 ms, so the equipment does not reboot.
Is the storage compatible with a balcony solar plant on microinverters?
Yes, in AC coupling mode it connects on the AC side and stores the energy of microinverters, for example the SUN G4 series.
Which capacity should be chosen for an apartment?
There are 2.56 and 5.12 kWh versions. The smaller one covers evening consumption from a small balcony plant, the larger one gives a reserve for the night.
What is the conversion efficiency of the balcony storage system?
The conversion efficiency is 96.5 %, which means losses during charging and discharging are small.
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REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.