Built by operators, for operators.

Founding Story

The problem we couldn't unsee.

In 2022, while auditing a 20 MWh BESS commissioned for PJM capacity market participation, Aditya Ramaswamy found a recurring pattern: the BMS-reported SoH on multiple string banks read 92–94% — within warranty tolerance. The actual capacity, measured during an offline discharge test, was tracking 81%. The operator had been bidding the wrong number into capacity auctions for 18 months.

That gap — manufacturer lookup curve vs. electrochemical reality — turns out to be structural. Factory characterisation runs at 25°C on fresh cells. Utility-scale BESS runs at ambient, at variable discharge rates, with depth-of-discharge profiles the factory never tested. By year three of operation, BMS-to-actual SoH divergence commonly reaches 10–15%, and the warranty team is rarely the first to notice.

Cellanchor was incorporated in Boston in mid-2024 to build the measurement infrastructure this industry is missing: a physics-based SoH model that runs continuously against live inverter telemetry, not against factory test conditions. Cellanchor is not a battery OEM, not a SCADA vendor, and not an EMS replacement. It is a measurement layer that tells operators what their assets can actually do — so that dispatch, warranty, and maintenance decisions are grounded in physics rather than lookups.