S44 Energy: 2024 Year in Review – Driving the Future of EV Charging with CitrineOS, Open-Source Innovation, and Custom Solutions

As 2024 comes to a close, S44 Energy reflects on an incredible year of growth, innovation, and milestones for CitrineOS, our open-source Charge Station Management System (CSMS). From expanding our capabilities to helping clients transition away from restrictive SaaS solutions, we’ve made significant strides in empowering the EV charging industry. In this blog, discover how CitrineOS is driving the future of EV charging, offering both open-source and custom solutions to build scalable, future-proof infrastructure for Charge Point Operators worldwide.

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CitrineOS: Revolutionizing EV Charging with Open-Source Innovation and Custom Solutions

2024 was a landmark year for S44 Energy as we expanded the boundaries of what’s possible in EV charging. From authoring CitrineOS, our open-source Charge Station Management System (CSMS), now a Linux Foundation Energy project - to delivering cutting-edge custom software solutions for top-tier clients, we are redefining the future of e-mobility.

As EV infrastructure continues to evolve, many providers face challenges with restrictive SaaS platforms and rapidly changing technology. S44 Energy is answering the call for scalable, future-ready solutions that combine open-source innovation with custom development services.

2024 Highlights: The Rise of CitrineOS

Empowering the Industry with Open Source

CitrineOS has become a flagship project of the Linux Foundation Energy, gaining widespread adoption and recognition. Key milestones include:

Full OCPP 2.0.1 Integration: Comprehensive support for advanced security, device models, and seamless communication.
OCPI Roaming Support: Enabling cross-network charging interoperability for Charge Point Operators (CPOs) to partner with eMSPs through hubs like Hubject or direct integrations.
Plug & Charge Compatibility: Streamlined, secure transactions for EV drivers across OCPP 2.0.1 hardware.

Community Momentum

The open-source community has rallied around CitrineOS, demonstrating its potential to drive industry-wide change:

400+ Community Members: A growing base of developers and contributors strengthening the platform.
30+ Code Forks: Organizations are customizing CitrineOS to power proprietary CSMS solutions.
New Payment Module: Thanks to StackBox, CitrineOS now integrates Stripe for flexible payment options.

Professional Services Driving Innovation

While CitrineOS pushes the boundaries of open source, our professional services are helping clients transition from legacy platforms to proprietary solutions tailored for growth.

Key Client Projects in 2024:

Proof-of-Concept CSMS: Supported a large network in replacing their legacy SaaS solution, enabling full scalability and operational independence.
Roadmap Design: Partnered with a nationwide operator to create a charging strategy for both last-mile delivery and public use cases.
Hardware Integration: Seamlessly onboarded a new OCPP 2.0.1 fast charger manufacturer into an existing network, expanding hardware compatibility and customer options.

These projects reflect a growing demand for solutions that operators can own, scale, and control. CitrineOS delivers this flexibility, whether through open-source or bespoke software development.

Looking Ahead to 2025

Our mission for 2025 is clear: accelerate the adoption of CitrineOS and empower the EV charging industry through innovation and collaboration.

What’s Next for CitrineOS:

New Operator UI: A modern interface for streamlined operations and CPO excellence.
Reverse Compatibility: Support for OCPP 1.6, ensuring easy upgrades for operators managing mixed hardware fleets.
Expanded PlugFests: More opportunities to demonstrate CitrineOS’s capabilities at global industry events.
Major Announcements: Follow us on LinkedIn and YouTube for exciting updates in early 2025.

An Invitation to Lead the Future of EV Charging

Whether you’re a Charge Point Operator (CPO), fleet manager, or EV innovator, S44 Energy offers the tools and expertise you need to succeed.

Adopt CitrineOS: The industry’s most advanced open-source CSMS, designed to future-proof your network.
Collaborate with Us: Leverage our expertise for tailored solutions that drive innovation and profitability.
Contribute to Open Source: Join us in advancing global e-mobility through community-driven innovation.

At S44 Energy, we believe in the power of open source to build resilient, adaptable infrastructure for the future.

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If you’re ready to scale, innovate, and lead in 2025, let’s connect.

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Happy New Year!
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