Invoice Import

Invoice import is the fastest and most reliable way to enter your emissions. Dekko automatically extracts data using OCR (optical character recognition).

Which invoices to import?

Import all your energy invoices for the period covered by your assessment:

  • Electricity — Invoices from EDF, Engie, TotalEnergies, Ekwateur, etc. Dekko extracts consumption in kWh.
  • Natural gas — Invoices from your gas supplier. Dekko extracts consumption in kWh GCV and converts to NCV for calculation.
  • Fuel — Fuel card statements or gas station invoices. Dekko extracts liters and fuel type.
  • District heating — District heating invoices if your building is connected to a network.
  • Water — Optional. Water consumption has a low carbon impact but can be included for a comprehensive assessment.

Gather all invoices for the year

For an annual assessment, you'll typically need 6 to 12 electricity invoices (monthly or bimonthly), 4 to 6 gas invoices, and 12+ fuel statements. Gather them all before starting.

Formats and limits

Dekko accepts the following formats:

  • PDF — Recommended format. Invoices downloaded from your supplier's portal are in PDF and yield the best OCR results.
  • JPEG / PNG — Photos of paper invoices. Make sure the image is sharp, well-lit, and not blurry.

Size limit: 10 MB per file

If your file exceeds 10 MB, reduce the image resolution or compress the PDF. Invoices scanned at 150–300 DPI offer the best quality/size trade-off.

How does OCR work?

When you import an invoice, Dekko uses Google Document AI to analyze the document:

  1. The file is securely sent to the OCR service.
  2. The AI identifies the invoice type (electricity, gas, fuel, district heating).
  3. Key data is extracted: supplier, period, consumption, amount, delivery point.
  4. Dekko presents the extracted data for validation before creating emissions.

Cost: 1 credit per invoice

Each OCR extraction uses 1 credit. The Starter plan includes monthly credits. Check your balance in Settings > Billing before a batch import.

Validating extracted data

After extraction, Dekko displays detected data field by field. Systematically verify:

  • Invoice type — Did OCR correctly identify it as an electricity, gas, etc. invoice?
  • Period — Do the start and end dates match the invoice? Are they within your assessment period?
  • Consumption — Is the kWh or liter amount consistent? Compare with the figure on the original invoice.
  • Unit — kWh, kWh GCV, liters... Does the extracted unit match the one on the invoice?
  • Total amount (incl. tax) — Used as a consistency check. If the amount differs greatly from what you expect, the consumption may be incorrect.

Always verify before validating

OCR is 90–95% reliable but not infallible. A misread comma can turn 1,234 kWh into 12,340 kWh — that's 10 times more emissions. Take 30 seconds to check each extraction.

Automatic emission creation

Once data is validated, click "Create emission." Dekko:

  • Automatically assigns the correct ADEME emission factor.
  • Calculates the emission in kg CO2e.
  • Links the emission to your current assessment.
  • Attaches the invoice as supporting evidence (traceability for auditing).
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