Energy Management Systems

The Opportunity

Every site with charging infrastructure also has an energy budget — a grid connection with finite capacity shared between charging, HVAC, lighting, production, and other loads. As charging networks grow, managing that budget becomes the defining operational challenge. Energy Management Systems (EMS) are the software layer that optimises energy flows across a site or portfolio. GreenFlux and an EMS are natural partners: GreenFlux knows the real-time state of every charger on a site, and the EMS knows the overall energy picture. Together, they can do things neither can do alone. GreenFlux exposes a Smart Charging API that accepts capacity constraints and charging schedules from external systems. Data APIs deliver real-time session data, meter values, and charge station status via webhooks.

Use Cases

• Prevent peak demand charges at garages with hundreds of simultaneous charging sessions.
• Guarantee fleet charging overnight without exceeding the site's industrial grid connection.
• Maximise the share of green energy delivered through chargers, reducing Scope 2 emissions.

Example Integration

# 1. Create a capacity group for a site
POST /smartcharging/capacitygroups
{
  "name": "Parking Garage A – Level 2",
  "maxCapacity": 50,
  "unit": "kW"
}

# Response: { "id": "cg-abc123", "name": "Parking Garage A – Level 2" }

# 2. Apply a day-of-week dynamic scenario (lower limit on weekdays 08–18)
POST /smartcharging/capacitygroups/cg-abc123/scenarios/dynamic
{
  "dayOfWeek": ["MONDAY","TUESDAY","WEDNESDAY","THURSDAY","FRIDAY"],
  "startTime": "08:00",
  "endTime": "18:00",
  "maxCapacity": 30
}

# 3. Read live allocation data for the dashboard
GET /smartcharging/capacitygroups/cg-abc123/allocationgraph

Authentication, base URLs, and sandbox access at developer.greenflux.com.