Make the Switch to charging communication standards developed by the world’s leading experts on EV charging standards and software. No more patchwork of products in different parts of your network. Running Sara and Josev together means seamless integration and high-definition insight from vehicle, to charger, to grid.
With Josev, the latest OCPP and ISO 15118 advances are enabled, constantly kept up to date, and ready to integrate into your chargers. Josev adds ease, saves time and cuts the cost of implementing ever-evolving industry standards. The result? You can focus your efforts where they matter and invest in what makes you different.More about Josev →
Sara gives you detailed access to every charger component and sheds light on every message affecting your network, including conversations between EV and charger. Our API-first approach means you can pick from a range of plugins for things like predictive maintenance, smart charging and providing energy services to the grid.More about Sara →
Josev and Sara together give you control over everything in your network. This level of insight – with remote diagnostics, troubleshooting and predictive maintenance – saves on the time and cost of maintaining your network. Sara, backed by protocol-packed Josev, gives you detailed analytics, a data-driven network, and service improvement reports. The upshot? Smart decision making. You know exactly what’s happening in real-time, meaning you get ahead of problems before they get ahead of you.
Josev and Sara are the only holistic solutions that provide deep insight into the conversation between the EV and the charger (based on ISO 15118), in addition to the OCPP communication between the charger and Sara. Together, they make your business future-ready.
Josev and Sara’s automation, predictive maintenance and diagnostics capabilities mean that the biggest cost in charging operations – sending out maintenance workers – is significantly reduced. It also reduces site owner costs thanks to smart charging and vehicle-to-grid features.
We provide a worldwide, life-time licence for integrating Josev to each charger. There’s also a yearly fee for ongoing updates to Josev. This guarantees your software implementation requirements are fully executed, with direct access to the world’s leading team of charging infrastructure software experts.
Sara’s intuitive interface is easy-to-use, so day-to-day tasks like onboarding new stations, adding a tariff and fixing any issues with remote actions are simple. Sara is helping you every step of the way, so you can focus your effort on best-in-class charging sites and services.
Deep insights, seamless charging and lower operational costs. That's what you get with Josev and Sara, as they both comply with ever-evolving industry standards. Access to every single detail of your EV chargers and charging data boosts your productivity and enables data-led business decisions.
Native integration, enabling drivers to charge simply by plugging in the cable
Visualise all charger components in great detail and set rules for custom notifications
Configurable transactions to better reflect a wide array of different use cases
Smart charging is enabled for both basic charging and ISO 15118
Two-way authentication and authorisation, and secure firmware updates
Additional methods like credit card, PIN-code, and contract certificates (Plug & Charge)
With OCPP 2.0.1 and the new device model concept, a station can automatically describe its full layout and capabilities to the cloud-based CSMS. This allows for plug-and-play installation of a charging station. It also lets the CSMS read and control any component remotely.
Sara stands for Station Analytics and Remote Administration
The Open Charge Alliance is the official body that specifies OCPP 2.0.1 and defines a set of certification profiles. Each profile tests a certain set of functionalities. Depending on the functionality of your charger or CSMS, you might want to certify for either a subset or all of these profiles.
Continuous Integration / Continuous Deployment (CI/CD)
Scotti stands for Simple Compliance Testing Tool for Interoperability.
Efficient XML Interchange (EXI) is a very compact representation of XML. All ISO 15118 messages are defined in XML. EXI improves serialisation and parsing speed on embedded devices (like an EV and a charging station controller) and allows more efficient use of memory and battery life, compared to standard (textual) XML.
The Message Queuing Telemetry Transport (MQTT) is a lightweight, publish-subscribe network protocol that transports messages between devices.
A CSMS is a cloud-based management system operated by the company that is managing the charging stations. A charging station connects to a CSMS using OCPP (Open Charge Point Protocol).
Automated Connection Device (ACD), a conductive charging concept that doesn't require a person to plug in the charging cable. A first implementation is ACD-P, where 'P' stands for 'pantograph' charging of buses.
Power line communication, a communication technology that enables sending data over existing power cables.
Signal Level Attenuation Characterisation (SLAC) is based on power line communication (specifically HomePlug Green PHY) and is a protocol to establish the data link between the EV and the charging station via the charging cable.
Charge Point Operator, the entity monitoring and managing an EV charger network.