
Technology
AC-Coupled vs DC-Coupled BESS: The Decision Is Your Existing Inverter
Every comparison of AC-coupled and DC-coupled storage opens with an efficiency table, and every one of those tables is correct and beside the point.
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Technology
Every comparison of AC-coupled and DC-coupled storage opens with an efficiency table, and every one of those tables is correct and beside the point.
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Sizing
A 120 kW charger does not add 120 kW to your energy bill. It adds 120 kW to your peak, and in most commercial tariffs the peak is what sets the charge.
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System design
Whole-home backup is a claim about one number: the coincident peak demand of the whole house, measured at the point where the backup supply takes over.
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Safety
A five by five risk matrix has twenty-five cells. Sixteen of them change their rating band when one reviewer moves a single axis by one level.
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Technology
A 5 percent state-of-charge difference across a 314 Ah cell is 15.7 amp-hours. Multiply it across a string and it decides usable capacity.
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System design
A grid-tied and an off-grid C&I BESS can use similar LFP batteries, PCS hardware, and EMS platforms, but the equipment may perform very different jobs.
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