---
title: "Totalizers"
slug: "totalizers-1"
updated: 2025-07-16T14:06:25Z
published: 2025-07-16T14:06:25Z
canonical: "docs.bazefield.com/totalizers-1"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.bazefield.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Totalizers

## Overview

In Bazefield, a **Totalizer** is a specialized point type that **aggregates raw SCADA data over a regular time interval**. They are ideal for summarizing telemetry like energy production, average irradiance, or peak voltage. Calculated Points can do the same, but Totalizers run at the Edge, enabling time-based insights without external processing.

Totalizer data is typically stored in the **Bazefield IMATIS database** or an **external database** like PostgreSQL—similar to Interval Calculations.

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## Key Capabilities

### ℹ️ Time-Based Aggregation

Totalizers compute values over a defined interval (e.g., 5 minutes, 1 hour).

- **Example**: Sum of power over the last 5 minutes
- **Example**: Maximum voltage in the last 5 minutes

### ℹ️ Flexible Aggregation Types

Supported operations include:

- `Sum`
- `Time-Weighted Average`
- `Maximum`
- `Minimum`
- `Standard Deviation`

### **ℹ️** Real-Time KPI Generation

Totalizers are often used to feed dashboards, alarms, and reports with interval-based metrics like:

- Average irradiance
- Total energy
- Peak current

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## Examples

A Totalizer named `KPI-IrradiancePOA` is configured as follows:

- **Point Type**: `TOTALIZER`
- **Aggregation**: `TimeAverage`
- **Interval**: `300 seconds` (5 minutes)
- **Source Point (Raw from SCADA)**: `@IrradiancePOA`
- **SaveAtIntervalStart**: `True` (to log the output timestamp at the beginning of the interval)

This setup calculates the average plane-of-array irradiance every 5 minutes — perfect for solar performance KPIs.

![](https://cdn.document360.io/a0786c0f-b171-4b24-8860-c32eb7ef2738/Images/Documentation/image(218).png?sv=2026-02-06&spr=https&st=2026-11-06T20%3A45%3A47Z&se=2026-11-06T21%3A45%3A47Z&sr=c&sp=r&sig=FY6U8lCPAlKaX2RtEWMyv%2FU4FGIvWrH%2BDKURVDaX4vs%3D)

*Example 5m average irradiance Totalizer*

| Totalizer Capability | Example Use Case | Syntax |
| --- | --- | --- |
| Aggregate raw SCADA data over an interval of time | Compute average power over the last 5 minutes | TotalizerAggregate=TimeAverage \| Interval=300 \| SourceTag=@ActivePower |
| Compute maximum voltage in the last 5 minutes | TotalizerAggregate=Maximum \| Interval=300 \| SourceTag=@Voltage |

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## Why Totalizers Matter

✔️ **Simplified Analytics**: No need for external tools to compute interval-based metrics.

✔️ **Operational Insight**: Capture trends like peak loads or average conditions over time.

✔️ **Automation Ready**: Feed alarms, reports, and dashboards with clean, interval-based data.

✔️ **Flexible & Scalable**: Apply to any raw point at the Edge, off-loading calculation resources from the central Bazefield servers.

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## Totalizer Aggregates

> [!NOTE]
> **Full list of available totalizer aggregates:**
> 
> - COUNT
> - SUM
> - TOTAL
> - TIMEAVERAGE
> - INTERPOLATIVE_START
> - INTERPOLATIVE_END
> - AVERAGE
> - DELTA
> - MAXIMUM
> - MINIMUM
> - VARIANCE
> - STDEV
> - ANGAVERAGE
> - ANGTIMEAVERAGE