For utility-scale use, Freqcon BESS MAX P4.4 4.4 MW / 18.75 MWh is a containerized LFP battery energy storage system supplied as an AC block. It has about a 4.26-hour duration and liquid cooling. Round-trip efficiency reaches 98.3% AC and 99.4% DC.
Use Cases
The specifications of Freqcon BESS MAX P4.4 4.4 MW / 18.75 MWh together point to use in front of the meter. It belongs to the utility-scale class by energy capacity. It is certified to medium- or high-voltage grid connection rules (VDE 4110) and ships as a block of 4 containers.
Capabilities
For Freqcon BESS MAX P4.4 4.4 MW / 18.75 MWh, the specifications suggest capacity value, counting as firm supply toward a network's peak needs. Its AC block includes the inverter, which points to renewable colocation, operating alongside a wind or solar plant on one site. It lists a configuration of 4.26 h, making it a candidate for energy shifting, taking in power and returning it hours later.
Nominal energy
18.75MWh
Rated AC power
4.4MW
Duration
4.26hour
C / P rate
0.25P
Round-trip efficiency (AC)
98.3 %AC
What does this system typically cost?
BESSBASE.com user price estimates for BESS MAX P4.4 4.4 MW / 18.75 MWh by Freqcon and similar storage systems. The ranges are LDP (Landed Duty Paid) prices per kWh that cover all expenses of delivering the goods to the buyer's premises, including production, shipping, sales margins, and import duties.
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Energy & Power
Architecture
DC Side
AC Side
Physical & Footprint
Battery Cells
Lifespan
Protection
Full Specification Sheet
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Plant Round-Trip Efficiency
The calculator estimates the full "plant" round-trip efficiency (RTE) at the point of interconnection. Some values are pre-blocked depending on information on a particular ESS. The rows that are marked "each way" are one-way efficiencies; they are applied on charge and again on discharge. We then square them. To enter a bundled PCS efficiency value, use its rated-power value, not peak. If the PCS skid already includes the LV/MV transformer, set Transformer LV/MV to 100 % so those losses are not counted twice.
More Freqcon Systems
4| Compare | Logo | Vendor | System | Energy | Power | Duration | Battery Cell | Open |
|---|---|---|---|---|---|---|---|---|
| Freqcon | BESS MAX PB.4 8.8 MW / 37.5 MWhAC Block | 37.5MWh | 8.8MWAC | 4.26h0.25C | LFP | |||
| Freqcon | BESS MAX PB.2 8.8 MW / 20 MWhAC Block | 20MWh | 8.8MWAC | 2.27h0.5C | LFP | |||
| Freqcon | BESS MAX P4.4 4.4 MW / 18.75 MWhAC Block | 18.8MWh | 4.4MWAC | 4.26h0.25C | LFP | |||
| Freqcon | BESS MAX P4.2 4.4 MW / 10 MWhAC Block | 10MWh | 4.4MWAC | 2.27h0.5C | LFP |
About the Vendor
Founded in 1988, Freqcon is a German BESS and power-conversion maker based in Rethem, Germany. It focuses on energy storage, frequency converters, and ultracapacitors, and its Freqcon BESS FQ platform works with more than 20 battery types from 350 kW to more than 50 MW, including a 900 kWh installation that used Audi e-tron batteries.
How to Read the Product Page
This profile of BESS MAX P4.4 4.4 MW / 18.75 MWh by Freqcon is assembled exclusively from public data to support early-stage screening and requires additional due diligence.
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