Introduction
The TWAICE BESS Analytics platform enables adaptation to Tesla Battery Energy Storage Systems (BESS), providing advanced performance and operational analytics on Tesla assets.
Tesla Megapack systems are delivered as fully integrated, containerized energy storage units, combining batteries, inverters, and thermal management into a single operational unit . As a result of this architecture, data access is typically available only at the Megapack (AC combiner) level, rather than at lower hierarchy levels such as modules or racks.
In this article we aim to guide you through expected sensors from Tesla systems to enable TWAICE analytics.
Note: This guide applies specifically to Tesla BESS, where data is typically available only at the Megapack level. For non-Tesla systems, TWAICE supports deeper component-level analytics (e.g. string, PCS, and module level).
👉🏻 See the full sensor requirements here: BESS Sensor Requirements & Model Components
Hierarchy Components
Battery Energy Storage Systems (BESS) follow a hierarchical structure of components and sensors. Tesla storages currently expose sensor data only on two hierarchy levels:
Name | TWAICE hierarchy | Definition |
System | System | Represents the complete BESS installation as a single operational unit. Includes all electrical and control subsystems required for operation. |
Megapack
| AC Combiner | The Megapack is Tesla's integrated, modular lithium-ion battery system that includes Batteries, Power conversion systems & Thermal management. All of this is packaged into a single container-sized unit. |
Required Sensors
TWAICE can onboard all available Tesla sensor data. However, we require a minimum set of sensor data to enable the features available for Tesla systems within the TWAICE platform.
We recommend the following sensor inputs to be shared with TWAICE:
Data Resolution & Quality
The typical time resolution of these sensors is 1 minute.
The minimum accepted time resolution is 5 minutes.
👉🏻 If you have any questions or need guidance please reach out to our team!