Strategy & consulting
Target picture, architecture review, build-or-buy, migration strategy and regulation (AFIR, German calibration law, ISO 15118) – decision material instead of slideware.
Strategy · Design · Delivery · since 2011
Charging-infrastructure software. From strategy to operations.
We advise on, design, develop and test platforms for charging infrastructure and energy – as a team that runs its own software in the field and has tested against real hardware in its own lab since 2014.
We build charging-infrastructure software for companies including:
BMW · Volkswagen · DEKRA · Webasto · Allianz · Audi Denkwerkstatt · WALL-E.works · DepotChargeWhat brings you here?
Five paths, one team.
Strategy & greenfield Build your own platform or a new charging offer. Consulting, design and delivery from one team. Your path in detail → Fleets & depots Electric trucks and buses charge reliably overnight – even during a backend switch. Load management, migration without missed charging windows, operations included on request. Your path in detail → Utilities & charging parks Switch or decouple your backend – without outages in the charging park. Migration strategy, regulation (AFIR, calibration law) and monitoring for operations. Your path in detail → Wallbox manufacturer Backend, test environment and over 250 practical test cases for your product. OCPP server, simulators, firmware validation and remote support. Your path in detail → Software provider Integrate CPMS capabilities under your own brand. White-label modules, open APIs, OCPI roaming and billing. Your path in detail →
Services
The decision comes first. Then the code.
A new charging offer, a backend replacement or your own platform: we think strategy, architecture and delivery together – one team from the first question into continuous operations.
Design & architecture
System design for charging and energy: protocols, data models, interfaces, load management – validated in a proof of concept rather than on paper.
Development, testing & operations
Software development on Azure, AWS and industrial edge; integration, test automation in our own lab and migration without downtime – with continuous evolution in production.
Fixed-price entry
The charging infrastructure assessment: clarity in three days.
Switch your backend, expand, or run it yourself? Three days of structured analysis of your setup – architecture, regulation, roadmap – for a fixed price of €4,900 plus VAT. No follow-up obligation: the result belongs to you.
- Architecture review of backend, charge points and interfaces
- Regulatory check: AFIR, German calibration law, ISO 15118
- Prioritised migration or expansion roadmap
- An honest recommendation – even if it is "keep what you have"
The alternatives
Why not simply …?
… rent an off-the-shelf SaaS CPMS?
Live quickly, but locked in: the vendor controls data, pricing and roadmap. Our building blocks come with source code and open APIs – switching remains possible at any time.
… hire a big consultancy?
Slides do not answer incidents at three in the morning. We consult with software we run in the field ourselves – and stay on board into continuous operations.
… build everything in-house?
You can – fastest with proven building blocks as the foundation: you own the code, your team takes over whenever it is ready. The assessment tells you honestly whether in-house holds.
Building blocks
Proven building blocks for your charging platform.
We use them where they accelerate your project: for OCPP, CPMS and billing. Combined with consulting, development and testing, they become a solution that fits your operation – with source code and no lock-in.
NeLeSo OCPP Broker
One broker. Any backend. Zero downtime.
The decoupling layer between charge point and backend: multi-backend routing, digital twin state cache and live migration without a big bang.
Explore the OCPP Broker
NeLeSo OCPP Server
The OCPP backend you build on.
OCPP 1.6 and 2.0.1 in production, 2.1-ready. With charger simulator, OCPI test environment, developer portal and open APIs for your team.
Explore the OCPP Server
NeLeSo CPMS Toolkit
19 modules. Three deployment models. Source code included.
From operator portal to calibration-law-compliant billing: white-label modules that run individually or together – as the foundation of your own solution.
Explore the CPMS ToolkitNeLeSo Edge
The OCPP server as a device: plug in instead of hosting.
Your site keeps charging – even when the internet or the cloud goes down. OCPP server, load management and monitoring as a ready-made appliance in the control cabinet: offline-first means the site runs autonomously and the cloud is optional. From DIN rail to a 19-inch appliance, with full data sovereignty.
NeLeSo Edge · industrial appliance
References
Projects that hold up in operation.
We may name customers like BMW or DEKRA – project details remain confidential and are anonymised here. More in a personal conversation.
Backend migration during live depot operation
A depot operator replaces its legacy CPMS – without buses and trucks missing a single charge.
Read the reference →Vehicle data & charging integration for a premium OEM
Test automation and charging processes from the vehicle perspective – a long-standing collaboration.
Read the reference →DepotCharge: own platform in its own Azure environment
The NeLeSo stack runs in DepotCharge’s Azure environment – we install, update and operate it.
Read the reference →Delivery in practice
Backend switches without a big bang. Your charge points never notice.
An example of how consulting and building blocks work together: our broker keeps charge points connected while target systems change step by step – per charge point, per group or per site. With a clear fallback path, parallel operation and a complete event journal.
- Shadow connection and parallel comparison operation
- Group-by-group switchover during live operation
- Rollback per charge point remains possible at any time
Operations & support
We run your platform – or enable your team.
In your cloud, hosted by us or as an appliance on site: monitoring and alerting are part of the setup from day one – and when questions come up, you talk directly to the engineers, not to a ticket queue.
- Operating models: SaaS, managed cloud in your tenant, on-premises or edge
- Monitoring and alerting from day one
- Source code and documentation as standard – your operation works even without us
- Continuous evolution in production instead of release standstill
NeLeSo test lab · Hohenschäftlarn · since 2014
Test lab since 2014
Field issues, made reproducible in the lab.
Since 2014, we have operated test environments with vehicles, wallboxes, metering points and OCPP backends. We turn field issues into reproducible scenarios and validate authentication, backend communication, load management, ISO 15118 and firmware against real hardware.
- OCPP test backend and charger simulators
- Firmware, configuration and rollout validation
- Field issues turned into reproducible scenarios
Protocol depth
We have spoken OCPP since 2011.
BootNotification, StartTransaction, SetChargingProfile: our systems see what charge points really send in the field every day – and turn it into stable sessions, clean meter values and traceable diagnostics. That experience flows into every project.
Illustrative capture of an OCPP session: the charge point boots (BootNotification), becomes available, starts a charging transaction with meter values – and load management adjusts the power in real time.
Insights
Technical articles on OCPP, CPMS, migration and compliance.
CPMS
EV Charging Software: Cloud, On-Premise, or Hybrid?
Cloud, on-premise, or hybrid: an honest comparison of the three deployment models for EV charging software, plus a verifiable vendor-selection checklist.
Read → 9 min CPMSCPMS Selection: 12 Criteria That Matter in Tenders
Twelve testable criteria for CPMS selection: protocol substance, operations, billing compliance and exit clauses – with a check for each before signing.
Read → 9 min OCPPOCPP 2.0.1 Migration Without Downtime: The Proven Process
An OCPP 2.0.1 migration succeeds without downtime when a broker cleanly separates shadow connection, comparison operation, and group-wise cutover.
Read → 9 min