---
title: "Battery (BESS) site detail"
url: "https://ensights.productfruits.help/en/article/battery-bess-site-detail"
language: "en"
last_updated: "2026-08-25T16:17:07.399Z"
---

# Battery (BESS) site detail

Inside one battery: live state, the power chart, interval-by-interval energy and cost, and where round-trip efficiency comes from.

*Fleet Management → BESS Sites → click a battery name*

The battery's own workspace has six tabs: **Info**, **Analysis**, **Activity Logs**, **Insights**, **Documents** and **Maintenance**.

## Analysis

The tab you will spend most time on. Six KPI tiles across the top, all following the period control:

-   **Total Capacity** — installed energy capacity.
-   **Energy Imported** — energy charged in, with its cost.
-   **Energy Exported** — energy discharged, with the revenue earned.
-   **Total Profit** — the net result for the period.
-   **RTE** — round-trip efficiency: energy out divided by energy in. It needs at least one complete charge/discharge cycle and reads *No full cycle recorded yet* until then, which is normal for a battery that has been idle.
-   **Availability** — the share of the period the battery was able to respond.

![A battery site Analysis tab with the Live Data rail](https://cdn-assets.productfruits.com/c6f61c16-5dea-471b-8c01-19f9525871e6)

### The chart

Metric chips build the plot — **Battery Power**, **Import Limit**, **Export Limit**, **Grid Power** and **Load Power** — at a granularity you choose (5 minutes by default), with a CSV download.

Plotting battery power against the import and export limits is the quickest way to see whether the battery is being held back by a site constraint rather than by its own state: a curve that flattens exactly on a limit line is a constrained battery, not a faulty one.

### Live Data rail

The right-hand rail is the battery's current state, independent of the period:

-   **Active Policy** — what it is being told to do right now. N/A means nothing is scheduled.
-   **Storage** — Power, Energy Remaining, Full Pack Energy, State of Charge, Voltage, Frequency.
-   **Grid** and **Load** — power at the connection point and at the load.
-   **Site** — Temp, POA Irradiance, Import Power, Export Power, where the site reports them.

**Load Detailed Data** below opens a column picker (Select All, Unselect All, Expand All, Collapse All) for the raw channels the battery reports — the level of detail you need for a vendor conversation.

**SEND** in the header shares the current view by email.

## Activity Logs

The same period, but interval by interval: **Date**, **Energy Import**, **Import Cost**, **Energy Export**, **Export Revenue**, **Profit**, **SOC** and **Energy Remaining**, at a granularity you choose.

This is the evidence table. When a day's profit looks wrong, the log shows which intervals charged at what price and which discharged, so a bad arbitrage decision is distinguishable from a bad price feed.

![The Activity Logs tab](https://cdn-assets.productfruits.com/ab37517d-3639-4cec-b6d4-12077158cec4)

## Info

The battery's record: **Name**, **Capacity (kWh)**, **SN**, **Battery ID**, **Battery Reference ID**, **Comments**, **Address**, **Timezone**, **Vendor**, **Host** and **Port**.

Host and port are the connection details for the battery's controller — the first thing to check with your integrator when a battery stops reporting.

## Insights, Documents and Maintenance

These behave exactly as they do on a PV site: alerts raised against this battery, files attached to it, and the service calls scheduled for it. Battery alert thresholds and recipients are configured from the BESS list's row menu under *SLA & Alerts settings…*.

## Common tasks

**Explain a day with no activity.** Check Active Policy in the Live Data rail, then Activity Logs for the same day. No policy means no dispatch.

**Judge whether the battery is healthy.** RTE over a month of real cycling, plus SoH on the BESS list, is the honest pair. A single day's RTE on partial cycles is noisy.

**Prove a constraint to the grid operator.** Plot Battery Power with Export Limit and download the CSV.

**Investigate a stale battery.** Info → Host and Port, then the site's agent under Agents.

## Common questions

**RTE says no full cycle recorded.**  
The battery has not completed a charge and discharge in the period. Widen the period or wait for a full cycle.

**Profit is negative.**  
Charging cost exceeded discharge revenue in the period — either a price move or a policy charging at the wrong hours. Activity Logs shows which intervals caused it.

**State of Charge is 0% but the battery is fine.**  
Check when the battery last reported (Last Seen on the BESS list). A stale feed reads as an empty battery.