8 guides
EV Charging & OCPP
OCPP guides written from building a Central System rather than from reading the specification. They cover the version choice, the vendor quirks that only surface in production, and the build-versus-buy decision that comes before any of it.
If you operate chargers in India, the payments and compliance pieces matter as much as the protocol ones.
See our EV charging workMobility · 14 min read
OCPP and UPI: How EV Chargers in India Can Take Payments Without an App
The Open Charge Alliance's two models for UPI payments at EV chargers, how they map onto OCPP under the hood, and what y…
Mobility · 23 min read
OCPP 2.0.1 Security for EV Charging Operators (2026)
Securing an OCPP 2.0.1 EV charging network in India: TLS/mTLS, OCSP revocation, signed firmware, and offline authorizati…
Lessons · 8 min read
We Built the Software for an EV Cycle, Then Drove to IIT Jammu to Watch It Roll
The behind-the-scenes story of building the app, firmware and dashboard for an EV cycle, and what the day at IIT Jammu w…
Mobility · 12 min read
EV Charging Software Companies in India (2026)
There are ~14 EV charging software (CSMS) companies in India in 2026. We built PlugEV and audited 9. The honest comparis…
Mobility · 11 min read
Building an OCPP CSMS: What Worked, What Broke
Honest breakdown of building a production OCPP 1.6-J CSMS in India: message flow, transaction lifecycle, vendor quirks, …
Mobility · 10 min read
OCPP 2.0.1 Migration Playbook for Indian Operators: When to Move, What Breaks, What's Worth It
When does an Indian EV operator on OCPP 1.6-J really need 2.0.1? Honest cost/benefit, ISO 15118 plug-and-charge, and a m…
Mobility · 9 min read
CCS2 vs CHAdeMO in India 2026: Which DC Standard to Pick (and Why It Mostly Doesn't Matter Anymore)
Honest 2026 take on India's DC fast-charging connectors: CCS2, CHAdeMO, GB/T, and AIS-138 standard, what to install at a…
Mobility · 10 min read
Building an EV Charging Station with RFID Authentication: What We Learned
A practical guide for anyone building or operating EV charging stations in India: how the RFID + OCPP stack fits togethe…