EV Charging Load Alerts Workflow: HTTP API + Email

Prevent EV charging overloads with automated load alerts—every 5 minutes

This EV Charging Load Alerts Workflow: HTTP API + Email monitors your EV charging network, calculates site-wide grid load and tariff status, generates per-station charging recommendations, and sends email alerts (standard schedule updates or overload warnings with mitigation plans) via SMTP—all using n8n automation.

What this workflow does

• Runs on a schedule (every 5 minutes) to keep notifications timely.
• Polls your charging-network HTTP API for live station demand, vehicle/queue details, grid capacity, and tariff information.
• Normalizes station data into consistent fields (including demand, capacity, battery level, and priority) for reliable downstream processing.
• Calculates grid load by comparing total site demand to grid capacity, deriving grid load percentage, headroom, and overall grid status—while also flagging whether the tariff period is peak.
• Creates per-station recommendations such as Charge Now, Throttle 50%, or Delay to Off-Peak, prioritizing queued and low-battery vehicles.
• If grid load is high (≥80%) or an overload risk is indicated, the workflow waits 10 minutes, estimates load reduction, projects grid load, and then emails an overload warning with a mitigation summary.
• Otherwise, it emails a standard charging schedule notification.

Use cases

• Site operators managing EV charging load to protect grid capacity during peak tariff windows.
• Automation engineers building an HTTP API–driven alerting system for charging stations.
• SaaS operators monitoring multi-station performance and distributing actionable recommendations by email.

Technical details

• n8n nodes used: http request, code, if, wait, email send (plus sticky note for workflow clarity).
• Integrations: an authenticated charging-network HTTP API (configure HTTP Header Auth + endpoint URL) and SMTP (configure from/to and credentials).
• Configuration: adjust grid-load thresholds and prioritization rules as needed.