Define the job first
Solar self-consumption, tariff shifting, peak management and resilience are different objectives and can lead to different battery designs.
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HEY SOLAR GUIDECommercial battery storage
A business battery can shift electricity through time, increase use of on-site solar or support operational objectives, but the value depends on the site load, tariff, power limits and control strategy.
THE SHORT ANSWER
A business battery can shift electricity through time, increase use of on-site solar or support operational objectives, but the value depends on the site load, tariff, power limits and control strategy.
Power is as important as capacity
A large kWh figure does not guarantee the battery can meet a high site load. Charge and discharge power need to match the use case.
Model cycling and losses
Round-trip losses, degradation, throughput and control strategy should be included in the commercial case.
Backup is not automatic
Resilience requires appropriate architecture, switching and protected loads; a standard battery installation should not be assumed to provide site backup.
NEXT STEP
Turn research into a property-specific conversation.
Online information can narrow the options. A useful quotation needs the real property, energy use and project requirements.