PowerPunk

PowerPunk is a decentralized coordination platform designed to make it simple for communities to fund and launch climate-positive actions together. The goal is to give anyone the tools to organize, fundraise, and execute collective sustainability projects using Web3 primitives.

With PowerPunk, anyone can start a campaign that leverages the power of pooled resources, transparency, and smart contracts to create real-world impact.

The types of campaigns PowerPunk enables include:

• Community Microgrid: neighbors raise funds to build a shared renewable microgrid for local resilience.
• Community Garden: residents pool funds to convert an empty lot into a green space.
• Tree Planting Initiatives: backers sponsor urban tree planting and can track progress.
• HVAC Bulk Buying: households pool funds to bulk-purchase energy-efficient HVAC units at discounted rates.
• Co-op Solar Installations: multiple homes coordinate to install rooftop solar panels together, lowering costs and increasing adoption.

Each campaign is owned by the community and governed through transparent, verifiable on-chain actions.

Frontend Framework:

• Next.js 14 with App Router for modern React development
• TypeScript for type safety across the entire codebase
• Tailwind CSS for responsive, utility-first styling
• Lucide React for consistent iconography

Blockchain Integration:

• Coinbase CDP (Customer Development Platform) as our primary Web3 infrastructure
• CDP React Hooks (@coinbase/cdp-hooks) for wallet connection and transaction handling
• CDP AgentKit for AI-powered fund management (agent escrow option)
• Viem for low-level Ethereum transaction encoding and utilities
• Hardhat for smart contract development and deployment

Smart Contracts:

• Solidity 0.8.28 with OpenZeppelin libraries for security
• CoopEscrow.sol - Individual escrow contracts per project
• ProjectRegistry.sol - Central registry for project discovery
• Base Sepolia testnet for development and testing

Backend & Data:

• Supabase for PostgreSQL database and real-time subscriptions
• Walrus for decentralized metadata storage
• Next.js API Routes for server-side logic

Partner Technologies & Benefits

Coinbase CDP

• Embedded Wallets: Eliminated the "connect wallet" friction - users sign in with email
• Transaction Hooks: useSendEvmTransaction made complex multi-step flows possible
• AgentKit Integration: Enabled AI-powered fund management as an escrow option
• Base Network: Low fees and fast confirmation times for our transactions

Nora

• used Nora IDE to help with escrow contract creation

Hardhat Ecosystem

• Development: Local testing
• Deployment Scripts: Automated contract deployment with verification
• Integration Testing: End-to-end test suites with transaction flows

Notable Solutions

Technical Innovations

1. Individual Escrow Contracts: Each project gets its own contract
2. Dual Escrow Options: First platform offering both AI-agent and smart contract escrow
3. Seamless Multi-Step Flows: Complex blockchain operations feel like simple form submissions
4. Progressive Web3 Enhancement: Works for browsing without wallet, enhances with connection

Performance Optimizations

• Gas Optimization: Reduced deployment costs through efficient constructor patterns
• Bundle Splitting: Dynamic imports for heavy Web3 libraries
• State Management: Efficient React patterns to minimize re-renders
• Transaction Batching: Where possible, combined operations to reduce gas costs

Security Considerations

• Reentrancy Protection: All state-changing functions protected
• Input Validation: Comprehensive parameter checking in contracts
• Access Controls: Only creators can finalize their projects
• Fail-Safe Mechanisms: Automatic refunds if projects don't meet goals