Commercial and industrial facilities face rising demand charges and unreliable grid supply. Battery Energy Storage Systems (BESS) reduce peak demand by discharging during high-tariff windows — but correct sizing depends on your load profile, not guesswork.
1. Analyse your 15-minute load profile
Request interval data from your utility or install temporary metering. Identify peak kW events, duration, and frequency. A factory with predictable afternoon peaks needs different storage than a data centre with flat baseload plus short spikes.
2. Define the peak-shaving target
Decide how many kW you want to shave and for how many hours per day. Power (kW) determines inverter sizing; energy (kWh) determines battery capacity. For example, shaving 500 kW for 2 hours requires at least 1,000 kWh of usable storage (plus depth-of-discharge margin).
3. Factor backup requirements
If BESS also provides backup, add critical-load energy on top of peak-shaving capacity. FFD POWER Galaxy BESS cabinets scale modularly from hundreds of kWh to multi-MWh with string-based architecture.
4. Model ROI with local tariffs
Compare demand-charge savings, energy arbitrage, and avoided diesel costs. Hybrid solar-plus-storage can improve payback when PV offsets daytime load before battery discharge.
Get a free sizing assessment
Our engineers will review your load data and recommend Galaxy BESS or containerized configurations.