ChargeOnSite - EV Charging Management Software
How ChargeOnSite built a charger-agnostic platform and moved past a single hardware vendor.
ChargeOnSite delivers EV charging across commercial and multifamily properties managed by major real estate operators.
As an EV charging infrastructure provider, ChargeOnSite needed a partner to build and evolve its software.
Source: Unsplash
The challenge: one hardware vendor, one proprietary stack
ChargeOnSite's early platform was built around a single charger brand, and that choice locked the network to one vendor's hardware and its proprietary behavior.
A new site meant that vendor's chargers. Another brand could not join the same driver and property experience.
One brand of hardware
The first platform only spoke to one vendor's chargers.
Proprietary behavior
Charger communication followed that vendor's stack, not a protocol the network could reuse.
No path to another brand
Adding a different charger meant a different system, not a setting in the software ChargeOnSite already ran.
Source: ChargeOnsite
What we built: one platform, any charger
We engineered ChargeOnSite's platform end to end — charging, energy, billing, apps and operations in one system.
Charger-agnostic core
Support multiple brands and migrate OCPP 1.6 to 2.0.1 live.
Session management
Manage charging from plug-in through payment and monitoring.
Billing & accounting
Connect Stripe payments to Zoho through automated API flows.
Driver & property apps
Give drivers and property teams one branded experience.
The hard part: OCPP integration when there was no playbook
The work began in 2022, when public guidance on OCPP, charger communication and real-world hardware behavior was limited.
Built integrations from scratch. There was no mature implementation playbook to copy from.
Handled compliant and non-compliant chargers, different hardware behavior and one consistent driver experience.
We evolved without rebuilding, kept the live platform current as protocols and requirements changed.
Source: ChargeOnsite
The result: a charger-agnostic platform they own
ChargeOnSite now runs charging, energy, billing and support on software it owns.
Charger-agnostic for good
ChargeOnSite can onboard any hardware brand, never blocked by a vendor relationship.
Built to scale
The network can grow without staying tied to one charger brand.
Full ownership
ChargeOnSite owns the platform and its data.
One branded network
Sessions run across every location on one branded experience.
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