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

# Record stationary and mobile combustion

> Record fuel burned in equipment or vehicles, using the matching source and unit.

Use **Scope 1** for combustion activities, such as fuel burned in a generator or a company vehicle. Use **Purchases** to record buying the fuel.

## Before you start

Check the accounting year in the sidebar. Have your fuel-use log, meter record, or vehicle mileage record ready. For a mileage-based factor, use distance travelled; for a fuel-based factor, use fuel consumed. These are different ways of measuring an activity, so avoid adding both for the same fuel use.

<Steps>
  <Step title="Choose the combustion type">
    Open **Scope 1** and click **Add activity**. Choose **Stationary combustion** for equipment in a fixed location, or **Mobile combustion** for vehicles.
  </Step>

  <Step title="Select the source">
    Open **Fuel type** for stationary combustion, or **Fuel or vehicle** for mobile combustion. Search the list and use its filters to narrow the choices. Select the fuel or vehicle specification that matches your record.

    Mobile combustion includes fuel choices and vehicle choices. Check the fuel type, vehicle description, and factor unit before selecting. If a fuel choice includes **Gross CV** or **Net CV**, keep that fuel description and choose a quantity unit such as litres, kg, or kWh.
  </Step>

  <Step title="Enter consumption">
    Click **Continue**. Enter **Quantity** greater than zero and select **Quantity unit**. The available units match the selected source. Compatible units are converted automatically.

    For example, enter **500 litres** for a fuel-use record in litres. For a kilometre-based vehicle choice, enter the distance travelled instead.
  </Step>

  <Step title="Attach evidence and save">
    In **Supporting documents**, upload your evidence or tick a document from the pool. Click **Add activity**. Open the saved row to review its quantity, factor, source, and emissions.
  </Step>
</Steps>

<Frame caption="Select the fuel used in fixed equipment." className="moya-guide-frame">
  <img src="https://mintcdn.com/moya-analytics-pte-ltd/-AZoXSvrktgfmt2i/images/stationary-source.png?fit=max&auto=format&n=-AZoXSvrktgfmt2i&q=85&s=50e287f651b01dd4127597f73fcbc1cc" alt="Stationary combustion fuel selector with searchable fuel choices." width="1440" height="1000" data-path="images/stationary-source.png" />
</Frame>

<Frame caption="Choose a fuel or vehicle that matches how you measured the activity." className="moya-guide-frame">
  <img src="https://mintcdn.com/moya-analytics-pte-ltd/-AZoXSvrktgfmt2i/images/mobile-source.png?fit=max&auto=format&n=-AZoXSvrktgfmt2i&q=85&s=91ba6034855a20896c9b59d5febe408f" alt="Mobile combustion fuel or vehicle selector with search and filters." width="1440" height="1000" data-path="images/mobile-source.png" />
</Frame>

## Correct a saved activity

Use the row's **⋮** menu and choose **Edit**. Review both the source and quantity when changing a source. Choose **Delete** only when you want to remove the activity, then confirm the deletion.

If no choices match, clear the filters and try a shorter search. If a quantity or source is missing, the field is highlighted and its error appears below it. Complete that field before continuing.

[Read the guide to gas releases](/user-guides/scope-one/fugitive-emissions) or [process emissions](/user-guides/scope-one/process-emissions).

<Frame caption="Review recorded Scope 1 activities in the accounting year." className="moya-guide-frame">
  <img src="https://mintcdn.com/moya-analytics-pte-ltd/-AZoXSvrktgfmt2i/images/scope-one-table.png?fit=max&auto=format&n=-AZoXSvrktgfmt2i&q=85&s=69939af190d485bd56b1a0493f07c7f6" alt="Review recorded Scope 1 activities in the accounting year." width="1440" height="1000" data-path="images/scope-one-table.png" />
</Frame>


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