# Review electricity bills and flag anomalies with OpenAI: n8n workflow

> Started by another system calling it, and works across Google Sheets. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/review-electricity-bills-and-flag-anomalies-with-openai (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Data collection](https://millionrounds.com/workflows?category=Data+collection#library)

# Review electricity bills and flag anomalies with OpenAI

Started by another system calling it, and works across Google Sheets. It hands the judgement calls to OpenAI. 21 steps, 2 branches, 3 loops or waits: large, and worth reading before you trust it with anything live.

Large Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Freview-electricity-bills-and-flag-anomalies-with-openai)

**21 steps** Large: read it before trusting it with anything live

**2** Branches: places the flow splits

**3** Loops or waits

**1** Service it connects to

## The flow

Starts it 5 Model 3 Logic 9 Service 4

The steps in the order they run, from what starts it.

- 1 **When New Bill Submitted** Webhook *Starts it*
- 2 **Every Month Bill Recheck** Schedule trigger *Starts it*
- 3 **OpenAI GPT-4.1 Mini** Lm Chat Open Ai *Model*
- 4 **Set Bill Context Data** Set *Logic*
- 5 **Bill Data Validator Agent** Agent *Model*
- 6 **Advisory Report Generator Agent** Agent *Model*
- 7 **Wait for Extraction Completion** Wait *Logic*
- 8 **Format Advisory and Route** Code *Logic*
- 9 **Parse Bill Validation** Code *Logic*
- 10 **Check Escalation Need** If *Logic*
- 11 **Check Bill Data Validity** If *Logic*
- 12 **Reply Escalation Pending** Respond To Webhook *Starts it*
- 13 **Wait 24 Hours Before Alert** Wait *Logic*
- 14 **Log Reviewed Report in Sheets** Google Sheets *Service*
- 15 **Fetch Historical Bills** Http Request *Service*
- 16 **Reply Invalid Bill Data** Respond To Webhook *Starts it*
- 17 **Send Escalation Alert Email** Http Request *Service*
- 18 **Wait for Processing Result** Wait *Logic*
- 19 **Analyze Consumption Anomaly** Code *Logic*
- 20 **Log Escalated Report in Sheets** Google Sheets *Service*
- 21 **Reply Report Ready** Respond To Webhook *Starts it*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 21, with 2 branches, 3 loops or waits
- **Size:** Large: read it before trusting it with anything live
- **Connects to:** Google Sheets
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets account, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 21 steps it is large: read it before trusting it with anything live.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 21 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Freview-electricity-bills-and-flag-anomalies-with-openai)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)

## Workflows like it

Also data collection, with the same services where possible, closest in size first.

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- [**Automate HR celebrations with Gemini and Sheets** 21 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/automate-hr-celebrations-with-gemini-and-sheets)
- [**Automating SAP B1 journal entries with JSON and Google Sheets** 21 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/automating-sap-b1-journal-entries-with-json-and-google-sheet)
- [**Build an EU AI Act risk inventory with OpenAI** 21 steps · calls a model · Email, Google Sheets](https://millionrounds.com/workflow/build-an-eu-ai-act-risk-inventory-with-openai)
- [**Cluster webpage topics from Google Sheets** 21 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/cluster-webpage-topics-from-google-sheets)
- [**Customer personality (BaZi, DISC, Numerology) with Gemini** 21 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/customer-personality-bazi-disc-numerology-with-gemini)