Public practical guideInvoice-to-field mappingAI-readable instructions
How to read a natural gas bill
For natural gas, the safest input is the supplier-reported energy quantity in kWh. Use the documented energy value, not the invoice amount.
Use the supplier-reported natural gas consumption in kWh, map it to Natural gas (kWh), and avoid relying on EUR charges or ad-hoc manual conversion.
Exact mapping
What to extract and where it goes
Look for
- Supplier-reported gas consumption in kWh
- The billing period that matches the reporting year
- Any explicit supplier conversion line from m³ to kWh
Enter into
- Natural gas (kWh)
Unit
kWh
If missing
Leave Natural gas (kWh) at 0 and continue.
Do not use
- Total amount in EUR
- Standing charge or fixed fee
- Raw m³ volume when the supplier already provides a kWh line elsewhere
Visual mapping
Find the line on the document, then place it in the right field
This is the exact behavior we want from both users and assistants: identify the operational quantity, ignore the money amount, and map the quantity into the matching field.
Example natural gas bill
Billing period
01 Jan 2025 – 31 Dec 2025
Gas consumption (converted)
6,432 kWh
Gas volume
602 m³
Standing charge
188.00 EUR
Total due
1,024.50 EUR
→
Enter into the form
Natural gas (kWh)
6432
Rule
Use supplier-reported kWh, not EUR and not ad-hoc manual conversion.
Prefer the supplier's converted kWh line. If the selected country is outside the supported default list (for example Singapore), the user must also enter a documented gas factor and a source note.
Recommended workflow
How to use this category correctly
Step 1
Open the natural gas bill or annual statement for the reporting year.
Step 2
Find the supplier-reported gas consumption in kWh, or the documented converted energy line.
Step 3
Check that the billing period matches the reporting year you are filling.
Step 4
Enter the kWh total into Natural gas (kWh).
Step 5
If the selected country is outside the supported default list and gas is reported, add a documented gas factor and a source note before continuing.
Step 6
If the bill shows only m³ and no reliable kWh conversion, keep the field at 0 until you have a documented energy figure.
Assistant prompt support
How an assistant should guide the user in this category
Ask the user for the gas bill or supplier statement.
Extract the supplier-reported gas consumption in kWh.
Map that value to Natural gas (kWh).
If the country is unsupported for gas defaults, request a documented gas factor and source note as part of the same step.
Treat m³ as context only unless the supplier explicitly gives a defensible converted kWh line.
Ignore standing charges, taxes, and total invoice value in EUR.
Structured FAQ
Questions an agent or user might still ask
What if the gas bill shows both m³ and kWh?
Use the supplier-reported kWh line. It is the more direct match for the Natural gas (kWh) field in the form.
Should I manually convert m³ to kWh if the supplier does not show it?
Not in the normal workflow. If you do not have a documented supplier conversion, keep Natural gas (kWh) at 0 rather than guessing.
What if the company is outside the supported default country list, for example in Singapore?
The company can still use the tool, but reported natural gas requires a documented user-provided factor and a source note. Without that, the gas activity should stay at 0.