Energy control — the power-management layer in Qerra OS
Dynamic power distribution, overload prevention and predictable charging under real-world constraints.
Energy control
Real-time power management for reliable charging within a limited capacity.
On most sites the main constraint is not the chargers themselves, but the available electrical power. Capacity is finite, shared between many loads, and consumption shifts constantly. Qerra OS manages this load in real time so the infrastructure runs predictably and without the risk of overload.
Talk to an expertWhat the energy-control layer does
It makes decisions in real time, continuously:
- 01Monitors and evaluates the available capacity of the grid and the site
- 02Dynamically distributes power across all chargers
- 03Automatically applies the predefined limits and restrictions
- 04Manages competing charging requests according to defined rules
- 05Applies operational priorities consistently and based on business needs
Qerra OS treats charging as part of the site's overall energy system, not as a separate process.
Where it is critically needed
Dynamic power management is indispensable in environments with shared capacity and variable load:
- 01Depots — charging fleets with fixed departure times and peak load
- 02Campuses — multiple buildings and user groups sharing one energy capacity
- 03Business parks — multiple tenants with simultaneous, competing charging needs
- 04Mixed-access sites — fleets, employees, visitors and external users on the same system
In such environments, uncontrolled charging can lead to overload and instability. Energy control provides safety, predictability and better use of the available infrastructure.
An illustrative business scenario: a logistics depot with 20 electric vans
The following example illustrates how dynamic power management makes it possible to electrify a fleet without increasing grid capacity. The specific parameters depend on the site and are determined after a technical analysis.
- Available grid power
- 150 kW
- Requirement at simultaneous charging (20 × 22 kW)
- 440 kW
- Deficit under uncontrolled charging
- −290 kW
- Night-time charging window
- 22:00 – 05:00 (7 h)
- Morning SoC requirement
- ≥ 90% on every van
- Solution via Qerra OS — energy control
- 150 kW caps, dynamic distribution, schedule-based priority
- Result
- 20/20 ready on time, 0 limit breaches, no CAPEX for upgrades
The standard alternative would typically be to increase grid capacity to 440 kW — meaning months of waiting for an opinion from the distribution operator, costly upgrades and often new electrical infrastructure. Energy control removes that need and allows the infrastructure to grow within the existing capacity.
How energy control works
Qerra OS monitors the site's energy consumption in real time and automatically distributes available power across the chargers. As demand grows, the system reallocates charging according to the configured rules and available capacity. If priorities are set, critical vehicles are served first.
All of this happens automatically, without human intervention and without interrupting the working day. The result is stable, predictable charging, better use of available power and a lower risk of overload.
Сигнали
лимит · тарифа · батерии
Energy Control
решение в реално време
Действия
kW · BESS · товар
What the system measures
Decisions are made based on real data, not static settings. The system continuously monitors:
- Current consumption of each charger (per second)
- Total site consumption against the contracted capacity
- Forecast load for the next 4 hours
- State of charge (SoC) of connected vehicles
- Tariff windows and dynamic electricity prices
- Production from local sources (PV, BESS) where available
- Reserve capacity and protective limits of the electrical infrastructure
Four strategies for power distribution
Different sites have different operational goals, so there is no single universally correct strategy. Qerra OS lets you choose the strategy based on operational priorities.
Equal sharing
Available power is distributed evenly across all active charging sessions. Suitable for campuses and workplaces without strict vehicle-readiness requirements.
Schedule-based priority
Vehicles that need to be ready earliest get priority. A common approach for logistics depots and bus depots.
Time to completion
The system calculates the required energy and remaining time for each vehicle and distributes power to ensure readiness for all by the set deadline.
Price optimisation
Charging is shifted to cheaper tariff windows or to moments with available local production from PV/BESS, without breaking operational deadlines.
Operational results
With energy control in place:
- 01Charging stays within the available capacity, with no risk of overload
- 02Better fleet readiness and predictability
- 03Fewer interruptions and more stable infrastructure operation
- 04Room to grow without the need for urgent and costly upgrades
Qerra OS allows the infrastructure to evolve in a controlled way and within the available energy resources, without compromising the reliability of the system.
Frequently asked questions
Energy control across the lifecycle
Energy control is not a one-off setting. It:
- 01Is configured during system design and deployment
- 02Is monitored continuously during operation
- 03Is adapted as the fleet, infrastructure and energy needs change, through Qerra Care
Одит
Дизайн
Интеграция
OCPP · ISO · Modbus
Тест
Qerra Care
As the fleet grows, new locations are added or energy needs change, the system adapts to preserve the same reliability and control over power.
Energy control is not just an extra feature on top of the charging infrastructure. It is the foundation on which the entire charging system runs.
Energy control first. Everything else follows.
Related solutions
Fleet operations
Qerra OS gives clear visibility into electric-fleet readiness, charging sessions and operational priorities in real time, without the technical detail.
Learn moreDriver and user interface
Simple, predictable charging for drivers. One-tap session start/stop, real-time status and easy identification — powered by Qerra OS.
Learn moreAccess and user management
Qerra OS manages access to charging infrastructure through roles, policies and authentication methods — structured control for every type of user.
Learn more