Systems
One infrastructure. Multiple users. Clear rules.
When employees, fleets, tenants and visitors use the same charging infrastructure, the challenge is not the chargers. The challenge is managing access, capacity and priorities.
Qerra designs mixed-access systems that ensure fair use of the infrastructure, protect critical operations and keep stable performance even as demand grows.
The challenges of shared infrastructure
Mixed-access sites lose efficiency when rules are informal. Conflicts arise under limited capacity and unpredictable demand:
- The fleet needs guaranteed operational readiness.
- Employees expect convenience.
- Tenants demand transparency and fairness.
- Visitors create peak loads.
Without centralised management and energy control, shared infrastructure becomes inconsistent and difficult to maintain.
One infrastructure. Multiple users.
Qerra designs mixed-access systems by defining clear operational policies and enforcing them automatically:
- Who is allowed to charge.
- When charging is permitted.
- How available capacity is distributed.
- Which groups have priority during shortages.
- How consumption is measured and reported.
The result is predictable infrastructure performance, regardless of the number of users, locations or charging sessions.
What the system guarantees
- Access control through policies for different user groups.
- Automatic enforcement of priorities under limited capacity.
- Stable operation within the real capabilities of the site.
- Full transparency and reporting of consumption.
- The option to charge and monetise selected user groups.
Policies do not depend on manual actions or human intervention. They are part of the system's logic.
Qerra OS ensures consistency
Qerra OS ensures that access policies, priorities and site constraints are applied consistently for every charging session.
Users get easy access to the service. The operator keeps full control of the infrastructure. The system remains reliable even as demand grows.
Charging and cost allocation
At mixed-access sites it is often necessary for different user groups to be charged in different ways.
Qerra supports a range of billing and reporting models without changing the underlying logic of management, access or capacity allocation.
Charging beyond your site
One system. One report.
Corporate fleets do not only charge at the depot or office. Through access to partner charging networks, drivers can charge anywhere, while the organisation keeps the same level of control and reporting.
- Driver cards — one card works at your sites and across partner networks.
- Public network access — charging on partner public networks in Bulgaria.
- Unified reporting — all sessions (internal and public) in one report.
- Policy control — public charging is governed by the same organisational rules.
Public charging is part of your system — not a separate service.
Ongoing reliability
Deployment is only the first step. Through Qerra Care we provide continuous monitoring, preventive maintenance and a guaranteed response time, so that every location operates to the same standards.
Learn more about Qerra CareMixed-access infrastructure works successfully only when the rules are clear, consistent and applied automatically.
The more users share a single system, the more important management becomes. That is where reliability is created.