EV Charging & CSMS
Charge point management software built for operators who can't afford downtime
HashTech builds and operates OCPP-certified charging platforms — from CSMS cores and driver apps to roaming, smart charging, and payments. Twenty-plus years of enterprise software discipline applied to EV charging infrastructure.
Capabilities
Everything a charging network needs to run
We work across the full CSMS stack — protocol, hardware, payments, and the operational tooling that keeps a network running at scale.
OCPP 1.6 & 2.0 Implementation
Full charge point management system (CSMS) builds and integrations against both OCPP 1.6-J and OCPP 2.0.1, including custom extensions where hardware vendors deviate from spec.
OCPI Roaming & Interoperability
Connect your network to roaming hubs and third-party CPOs/eMSPs with OCPI, so drivers can charge on partner networks and you can bill correctly across them.
Smart Charging & Load Management
Dynamic load balancing across sites and transformers, demand response integration, and tariff-aware scheduling that keeps sites within their electrical capacity.
Real-Time Monitoring & Analytics
Live station health, session telemetry, and utilization dashboards for operators — plus the alerting that catches a failing connector before a driver does.
Payment & Billing Integration
RFID, app-based, and contactless payment flows wired into your CSMS, with tariff engines, invoicing, and settlement built for unattended environments.
Hardware & Protocol Integration
Bringing new charger hardware onto your platform — conformance testing, firmware quirks, and the protocol-level debugging that gets a station production-ready.
Built on Open Standards
OCPP and OCPI, not a proprietary black box
OCPP (Open Charge Point Protocol) is the standard that lets a CSMS talk to charging hardware regardless of manufacturer. We implement both OCPP 1.6-J, still the most common protocol in deployed hardware, and OCPP 2.0.1, which adds device management, ISO 15118 plug-and-charge support, and tighter security — so your platform isn't locked to one charger vendor or one generation of hardware.
OCPI (Open Charge Point Interface) is what makes roaming work: it lets your network expose availability and pricing to partner networks, and lets your drivers charge on theirs. We've implemented OCPI on both the CPO and eMSP sides, including the session and CDR reconciliation that roaming billing depends on.
Standards compliance isn't the finish line — it's what lets us build smart charging, load management, and payments on top without fighting the protocol layer every time a new charger model ships.
EV Charging & Mobility Clients
Let's Talk
Ready to build something that lasts?
Whether it's a charging network, an AI rollout, or a core enterprise system — let's talk about what you're building.