Payment system for charging stations

Efficient invoicing and usage optimization for laundry rooms: A win for both the environment and the tenants

Smart billing that saves money and energy

Automatic pricing:

• Pay only for what you use
• Different rates for different locations
• Lower fee if you book but don't use
• Monthly invoices sent automatically

Why this helps:

For tenants:

• Fair pricing
• No surprise costs
• Easy to track usage

For the environment:

• People fill machines completely
• Less water and energy waste
• Better machine usage

Real impact
When tenants pay per use, they fill machines to capacity. This means fewer wash cycles and lower energy consumption.

This billing system is beneficial both for the environment and for making the use of the laundry room more efficient.

By introducing a charge for the use of the laundry room, tenants tend to use the machines more efficiently by filling them to capacity.

Siemens Bewator/Bapsi Connect

The technical solution

We built a desktop program that connects three systems:

1. Bewator access control

• Tracks who enters and when
• Records tag usage

2. Usage monitoring

• Monitors machine usage
• Calculates billing automatically

3. Invoice system

• Creates monthly invoices
• Sends to property management

Benefits for property managers:

• Real-time usage monitoring
• Automatic billing reports
• Easy to manage multiple properties
• Clear usage statistics

Technology
Built with C# .NET for reliability and easy integration with existing systems.

 Through the introduction of charges, tenants are incentivized to optimize machine usage, promoting sustainability and improved efficiency. This comprehensive and user-friendly solution empowers administrators with real-time monitoring and reporting capabilities, enabling informed decision-making and further operational improvements in the laundry room environment.

Frequently Asked Questions about Payment System for Charging Stations

How does the tag-based access and billing system work?

Each tenant receives a personal tag from the property owner that activates charging stations and grants access to laundry rooms. The tag automatically records all usage, which is collected and sent to the billing system once a month. Tenants do not need to make manual payments — everything happens automatically through the integration solution.

What technology powers the solution?

The system is built with C# ASP.NET and integrates with Siemens Bewator/Bapsi for access control. Vanderbilt security hardware manages entry points, and a .NET application connects Bewator's traffic logs to the existing billing system for seamless automation.

How does automatic billing work for tenants?

The system records every usage event via Bewator's traffic logs. Once a month, tenants are automatically billed based on their actual usage. Different tariffs can be configured per facility, and a reduced fee applies if a tenant booked but did not use the service.

Can the solution integrate with existing property infrastructure?

Yes, the solution is designed to integrate with existing systems such as Siemens Bewator and Vanderbilt access control. The .NET application connects directly to the existing billing system, minimizing the need to replace hardware or software.

How does the system contribute to sustainable resource use?

Usage-based billing encourages tenants to use machines and charging stations more efficiently. Experience from Riksbyggen shows that tenants start filling washing machines to capacity, reducing the number of cycles and lowering energy consumption — good for the environment and for operating costs.

How scalable is the solution for large property portfolios?

The Bewator/Bapsi platform supports everything from single buildings to large portfolios with hundreds of units. Administrators can monitor usage and manage tag assignments in real time via a centralized management interface, and the system can be expanded as the portfolio grows.