When Fiber meets EV charging ⚡🚗
After exploring AI-powered "Chat-and-Pay" micropayments, developer Sonny Wu pushed Fiber into a new real-world scenario: EV charging in a real-time "Charge-as-You-Go" streaming experience.
Why EV charging?
It’s a continuous action where costs accumulate in real time by energy consumed, perfectly fitting a "Pay-as-You-Use" streaming model.
More importantly, it reveals the exact design details of Fiber Network that usually go unnoticed—multi-hop routing, hubs, and how they naturally emerge in a decentralized network.

In this demo, your browser runs a Fiber WASM light node. You log in with Passkey, open a channel, and start charging.
From that point on, Fiber streams 0.5 CKB per 5 seconds while the battery fills.
A key piece here is multi-hop routing—You only open *one* channel with a Router to pay any station network (Tesla, EVgo, EA), and the network handles the rest.
This Router naturally becomes a "Hub"—not through centralized protocol privileges, but because the network rewards nodes that provide liquidity and route payments efficiently. A Router is just an ordinary node with higher connectivity in a decentralized network.

Does a Hub mean centralized risk?
No. Unlike Web2 processors, a Fiber Router never touches users’ money—funds are locked in an on-chain channel between you and the Router, which only forwards payment commitments. Channel states are publicly verifiable, paths propagate via gossip protocol, and settlement can always be enforced on-chain.
The demo also includes an Admin Dashboard to show this structural transparency, giving operators clear visibility into real-time routing fees, network transaction data, and station revenue analytics. In traditional platforms, these metrics are a centralized black box.

Fiber’s value proposition isn't just "faster" or "cheaper" transactions. It’s reinventing payments all together, making business models like "pay-as-you-use"—nearly impossible in Web2—practical for the first time.
When payments no longer depend on third-party services, approvals, delays, or meaningful per-transaction costs—and settlement becomes near-instant while users retain control of their funds—"pay-as-you-use" business models become viable at scale.
Ready to see it in action? Claim your free test tokens from the CKB Testnet Faucet, fund your browser channel, and watch the live payment routing in action:
💻 Demo:
Fiber Charge Simulator - Multi-Hop Payment Demo
Fiber Charge Simulator with multi-hop payment demo
📦 GitHub:

GitHub
GitHub - HappySonnyDev/fiber-charge-sim
Contribute to HappySonnyDev/fiber-charge-sim development by creating an account on GitHub.
🧠 Developer's notes:

Nervos Talk
Charge-as-You-Go: Running Fiber Network Inside an EV Charging Scenario / 边充边付:把 Fiber Network 做进一个充电场景里
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🤖 The earlier Chat-and-Pay demo:

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