Commercial and industrial energy storage batteries help factories, commercial buildings, data centres, utilities and infrastructure sites control power costs, improve resilience and integrate solar generation. A commercial BESS can reduce demand charges, shift energy to lower-cost periods, provide backup for critical loads and support renewable self-consumption.
Commercial energy storage battery use cases
- Peak shaving: discharge the battery during maximum-demand intervals to reduce the monthly demand charge.
- Load shifting: charge when tariffs are low and discharge when energy is expensive.
- Demand charge management: control site peaks caused by motors, HVAC, EV charging or production cycles.
- Backup power: support critical loads during outages or provide ride-through while generators start.
- Solar self-consumption: store surplus PV generation and use it when site demand is higher.
- Grid support: provide capacity, voltage or power support where permitted by the utility.
Commercial and industrial BESS system options
System size can range from modular 5–120 kWh stacked or wall-mounted systems through 261 kWh and 522 kWh liquid-cooled cabinets to 1044 kWh containerised configurations. The correct architecture depends on required usable energy, maximum power, daily cycling, available footprint and site temperature.
- 261 kWh outdoor liquid-cooled commercial BESS cabinet
- 522 kWh liquid-cooled battery storage cabinet
- 1044 kWh containerised battery energy storage system
- 120 kWh high-voltage stacked ESS
C&I battery sizing inputs
Send interval-level load data rather than only the maximum demand figure. The battery and PCS should be sized around the target peak reduction, required usable kWh, discharge duration, number of cycles and the site’s ability to recharge the system without creating a new peak.
- Peak kW and minimum load kW
- Daily and monthly energy consumption
- Tariff structure and demand-charge periods
- Required backup duration and critical-load profile
- Available footprint, clearances and transport access
- PV, inverter, PCS and EMS interface
- Ambient temperature and installation environment
For engineered sizing, read the commercial and industrial energy-storage solutions page and the BESS sizing guide.
Commercial energy storage ROI inputs
A meaningful return-on-investment model uses the applicable tariff, load profile, solar generation, demand-reduction target, battery degradation, round-trip efficiency and maintenance costs. Battery purchase price alone is not enough. The model should separate energy arbitrage, demand reduction and resilience value.
Request a C&I energy storage battery quote
Frequently asked questions
What size battery does a commercial building need?
Sizing depends on the target peak reduction, required energy, discharge duration and tariff. A site load study is more reliable than selecting a battery from building floor area alone.
Can a commercial BESS provide backup and peak shaving?
Yes, but the backup reserve, critical loads, transfer architecture and dispatch logic must be defined so peak-shaving operation does not compromise outage readiness.