This n8n workflow monitors solar energy production every 2 hours by fetching data from the Energidataservice API.
If energy output falls below a predefined threshold, it sends instant alerts via email.
Otherwise, it logs the data into Google Sheets and posts a daily summary to Slack for visibility.
- Renewable energy teams monitoring solar output.
- Facility managers and power plant supervisors.
- ESG compliance officers tracking sustainability metrics.
- Developers or analysts automating solar energy reporting.
- Trigger (Schedule Trigger) → Runs every 2 hours.
- Data Fetch (HTTP Request) → Calls the Energidataservice API for solar production data.
- Processing (Code Node) → Filters entries with production below threshold.
- Decision Making (IF Node) → Checks if any low-production entries exist.
- Alerts (Gmail Node) → Sends an email if low-production is detected.
- Logging (Google Sheets Node) → Logs valid production data for record-keeping.
- Slack Summary (Slack Node) → Posts daily summary sheet data for visibility.
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Schedule Trigger: Configure to run every 2 hours.
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HTTP Request Node:
Method: GET
URL: https://api.energidataservice.dk/dataset/YourDatasetHere
Add necessary headers and params as required by the API.
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Code Node: Define logic to filter entries where solar_energy_production < required_threshold.
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If Node: Use items.length > 0 to check for low-production entries.
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Gmail Node:
- Auth with Gmail credentials.
- Customize recipient and message template.
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Google Sheets Node:
- Connect to a spreadsheet.
- Map appropriate columns.
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Slack Node:
- Use Slack OAuth2 credentials.
- Specify channel and message content.
- n8n Cloud or Self-hosted instance.
- Access to Energidataservice API.
- Gmail account (with n8n OAuth2 integration).
- Google Sheets account & sheet ID.
- Slack workspace and app with appropriate permissions.
- Change Frequency: Adjust the Schedule Trigger interval (e.g., every hour or 4x per day).
- Threshold Tuning: Modify the value in the Code node to change the minimum acceptable solar production.
- Alert Routing: Update Gmail recipients or replace Gmail with Microsoft Outlook/SendGrid.
- Sheet Format: Add or remove columns in the Google Sheet based on extra metrics (e.g., wind or nuclear data).
- Slack Posting: Customize Slack messages using Markdown for improved readability.
- Telegram Node: Send alerts to a Telegram group instead of email.
- Discord Webhook: Push updates to a Discord channel.
- n8n Webhook Trigger: Extend it to receive external production update notifications.
- Integromat/Make or Zapier: For multi-platform integration with CRMs or ticketing tools.
- Utility Companies: Automatically detect and act on solar underperformance to maintain grid - stability.
- Solar Farm Operators: Log clean production data for auditing and compliance reports.
- Sustainability Teams: Track daily performance and anomalies without manual checks.
- Home Solar System Owners: Get notified if solar generation drops below expected.
| Issue | Possible Cause | Solution |
|---|---|---|
| HTTP Request fails | API key missing or incorrect URL | Verify API endpoint, parameters, and authentication headers. |
| Gmail not sending alerts | Missing or invalid Gmail credentials | Re-authenticate Gmail OAuth2 in n8n credentials. |
| No data logged in Google Sheet | Incorrect mapping or sheet permissions | Ensure the Google Sheet exists, columns match, and credentials are correct. |
| Slack node fails | Invalid token or missing channel ID | Reconnect Slack credentials and check that the channel ID is valid. |
| Code node returns empty | Filter logic too strict or wrong format | Validate incoming data structure and adjust the threshold condition. |
Need help setting this up or customizing it for your solar or energy monitoring use case?
✅ Set it up on your n8n Cloud or self-hosted instance
✅ Customize it for your own API or data source
✅ Modify alerts to suit Teams, Discord, SMS, or other tools
👉 Contact WeblineIndia’s n8n Automation Team — we’ll be happy to help.