BatteryPassport cross-references what the grid meter measured against what the BMS reported - independently, through a physics-based validation pipeline. The result is a certification your lender, insurer, or arbitration panel can trust.
Grid operators pay batteries to respond to frequency events. But the only proof of performance comes from the battery operator themselves. Self-reported data doesn't hold up in warranty disputes, refinancing conversations, or insurance renewals.
ACCURE found that 17% of BESS hardware failed to meet nameplate capacity at Site Acceptance Testing - before the warranty period even begins. Lenders know this. That's why financing terms are worse than they should be - and why disputes drag on for months without resolution.
We never touch your controls. Read-only access to your BMS and the utility-owned revenue-grade meter - two causally related data streams that we cross-reference for consistency.
Not a dashboard. Not a monitoring feed. A certification report with the specificity to change financing terms.
Each check is independently auditable. A certification report references the specific checks that passed or flagged for every event.
We believe transparency about limitations builds more trust than overclaiming. Here's where our methodology stands.