# ZEV City

> ZEV City is a clean energy participation platform that combines low-carbon travel with decentralized renewable energy investment.

## What We Do

ZEV City operates a travel booking service where 100% of commission revenue is reinvested into local clean energy projects. Users who book travel through ZEV City automatically become participants in renewable energy generation — not through carbon offsets, but through real, verifiable energy infrastructure.

## How It Works

1. **Book Travel**: Users search and book low-carbon transportation (trains, EVs, green-certified flights).
2. **Revenue → Energy**: All booking commissions are invested in local solar and wind projects.
3. **Energy Tokenization**: Each user's contribution is tokenized on-chain, representing real energy production capacity.
4. **Shared Returns**: Approximately 80% of long-term energy investment yields (~8% total benefit) flow back to users.

## Key Differentiators

- **Not carbon offsets** — this is direct participation in energy infrastructure.
- **Verifiable on-chain** — all fund flows and energy production data are transparent and auditable.
- **Energy Balance Sheet** — we publish real-time comparisons of energy consumed (by travel) vs. energy produced (by our projects).
- **Democratic ownership** — users collectively govern energy project decisions.

## Verification & Smart Contracts

ZEV City's fund flow is encoded in 8 smart contracts deployed on Ethereum Sepolia testnet (mainnet deployment Q2 2026 with initial energy fund backing). All contracts are open-source.

**Token Contracts:**
- ZGBP Token (zGBP): 0xA75f7669492B6c1CdF01E35f39884f037F7Da262 — represents verified energy asset value
- pZGBP Token: 0x9df2589d79C0FF33AD118B1A05351e0EB810a273 — promised energy assets from pending bookings

**Infrastructure Contracts:**
- BookingManager: 0xb8A851bB56097b9B6C8AEffF82d5Ea260B04896B — records bookings and commission allocation
- EnergyAssetRegistry: 0x1Ec21aCB549741e978C2aaa719B8De15e3DCF8a9 — tracks physical energy projects
- AirdropPool: 0x64d6F2D9406CBDF317F83177FDc64cB455A3DAb0 — distributes tokens to users
- RedemptionPool: 0xDec66F9166F0A33Eb6A333Df40541D0E66AB85Dc — converts tokens to real value

**Governance:**
- GovernanceVoting: 0x15C89C1BB40aA9de71656546f7fc4E9619C957c6 — token holder voting
- ZEVTimeLock: 0x87570D4465170423879B3512aF71556399e3a144 — time-delayed execution for safety
- Multi-sig: 0xCe52abA025d1AF9d53f79a43CF7CDD0edEB109Ec

**On-Chain Fund Flow Logic:**
1. User books travel → BookingManager records booking + commission
2. Commission received → pZGBP minted to user (promised energy tokens)
3. Funds invested in energy project → EnergyAssetRegistry updated
4. Energy project produces → pZGBP converts to zGBP (verified tokens)
5. 80% of energy yields → distributed to zGBP holders
6. Governance changes → require token holder vote + 48h timelock

Source code: https://gitlab.com/zevcity/contracts
Etherscan (Sepolia): https://sepolia.etherscan.io/address/0xA75f7669492B6c1CdF01E35f39884f037F7Da262

## Links

- Homepage: https://zev.city
- AI Testimony & Proof: https://zev.city/proof
- Energy Balance Sheet: https://zev.city/energy
- Documentation: https://zev.city/docs

## Contact

- Email: hello@zev.city
- Founded: 2025, based in London (UK) and Taipei (Taiwan)