> ## Content Index
> Fetch the complete content index at: https://blog.jestor.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# How to collect sustainability data reliably
- URL: https://blog.jestor.com/collect-sustainability-data-reliably/
- Published: 2026-09-16T18:56:37.000Z
- Updated: 2026-09-16T18:56:37.000Z
- Author: Bruno Bannach

To **collect sustainability data** that stands up to scrutiny, the collection method has to be recorded alongside the figure. In **Jestor**, each site submits through a form, evidence attaches to the record, and the method is a field, so a change in methodology is visible rather than hidden.

## Why environmental reporting is hard to trust

Data comes from several sites, each using slightly different methods, collected annually by someone chasing spreadsheets.

A figure that improves between periods may reflect a real change or a different counting method, and without recording the method nobody can tell which.

What structured collection provides:

- Consistent definitions across sites
- Evidence attached to each figure
- A visible record of methodology changes
- Collection spread through the year rather than concentrated
- Comparability between periods and sites

## What each data point should carry

| Element         | Why                               |
| --------------- | --------------------------------- |
| Metric and unit | Defined centrally, not per site   |
| Period          | Comparable boundaries             |
| Site            | Connected record                  |
| Value           | The figure itself                 |
| Method          | Measured, calculated or estimated |
| Evidence        | The document behind it            |

## Step by step to structure it

1. **Define metrics and units centrally**, so sites cannot interpret them.
2. **Create a submission record** per site and period.
3. **Require the method** alongside every value.
4. **Attach supporting evidence**, such as a utility invoice.
5. **Collect monthly or quarterly**, not annually.
6. **Flag implausible variation** against the previous period.
7. **Record any methodology change** explicitly.

## Why recording estimated versus measured is essential

A figure derived from an invoice and a figure someone estimated are not comparable, and combining them produces a total whose reliability is unknown. Recording the method per data point means the aggregate can state how much of it is measured, which is the difference between a defensible report and a number.

## Why choose Jestor

In **Jestor**, metrics live in a central registry so definitions are shared, sites submit through forms with required fields, evidence attaches to each record, **OCR** can extract values from utility documents, and conditional rules flag variation that warrants checking.

## Frequently Asked Questions

### Why record the collection method?

Because measured and estimated figures are not comparable and cannot be combined blindly. See [jestor.com](https://www.jestor.com/?ref=blog.jestor.com).

### How often should data be collected?

Monthly or quarterly, which is more accurate than an annual reconstruction.

### How are definitions kept consistent?

Through a central registry of metrics and units referenced by every site.

## Video Tutorial: Step by Step

With **Jestor**, you can automate workflows, connect teams, and build internal systems your way, all without code and powered by **AI**. Discover Jestor at [jestor.com](https://www.jestor.com/?ref=blog.jestor.com) and see how to take your company's operations to a new level of efficiency and control.