Question 1

Is it cheaper to build EV charging software in-house than to buy a platform?

Accepted Answer

Rarely, once total cost of ownership is counted rather than just the subscription line. A lean 8–10 person in-house team runs roughly $1.1M–$1.4M a year in the US (₹2–2.5 crore in India) indefinitely, on top of the 8–14 months and $400K–$1M-plus it typically takes to reach a production-ready first version. A configurable platform bundles protocol compliance, hardware certification and security into a per-charge-point or per-session price, which is usually far lower until a network reaches several thousand charge points.

Question 2

How long does it take to build an EV charging management system from scratch?

Accepted Answer

An enterprise-grade build with OCPP hardware compatibility, OCPI roaming, PCI-compliant payments and a driver app typically takes eight to fourteen months to first production deployment, and longer to reach feature parity with a mature commercial platform. Each new charger model added afterward reopens part of that integration work.

Question 3

What does OCPP certification involve for an in-house build?

Accepted Answer

Formal OCPP conformance certification runs through the Open Charge Alliance's certification program, and is separate from the per-model integration testing needed for each charger OEM's firmware quirks. Both are multi-month workstreams the first time, and both have to be repeated as new OCPP and OCPI protocol versions are released.

Question 4

Can a white-label platform still let us keep our own brand?

Accepted Answer

Yes — that is the specific advantage a configurable/white-label platform has over generic off-the-shelf SaaS. The protocol compliance, hardware onboarding and payment infrastructure are shared with the vendor's other customers, but the driver-facing brand, tariffs and site experience are configured to look and feel like an operator's own product.

Question 5

When does building in-house actually make sense?

Accepted Answer

Mainly for very large CPOs or OEMs where charging software is itself a core, differentiated product; organizations with an existing, idle platform engineering team; or businesses facing a regulatory requirement no commercial platform yet meets. Outside those narrow cases, the total-cost-of-ownership math generally favors buying or partnering.

build vs buy software

Build vs. Buy EV Charging Software: A CXO’s Cost, Speed and Scalability Comparison