Inazuma

Demo Page

• WebPage: hollow-leaf.github.io/inazuma
• Video: https://youtu.be/R0JVhL2DiUE?si=Pclr36mrNvYSxCHE
• Inazuma Contract: 0x651Ccd3E07dEda23a573fdD6759b169F3840Fc35

Abstract

INAZUMA,the gateway to decentralized green energy.We're revolutionizing eco-friendly energy distribution.The purpose of Inazuma is to encourage the use of green energy among humans, reduce CO2 emissions, and protect environment.

Introduction

The goal of our project is to realize a decentralized green energy platform provider. We use Co2 storage to store and retrieve the acquired green energy metadata, and sell green energy to buyers, who can obtain Hypercerts environmental certification.

Our solution has the following features and advantages:

• Provide incentives to increase the adoption rate of green energy
• Proof of their ESG commitment
• Enable a transparent and publicly accessible process for energy transactions
• Identify enterprises with high electricity consumption that contribute to environmental pollution

Method

• Use Co2.Storage to store green energy metadata
• Use Hypercerts to mint proof of their ESG commitment
• Use wagmi and RainbowKit to build connect wallet button
• Use Node.js express to build backend
• Use Next.js to build frontend

Technical Architechure

Seller workflow

sequenceDiagram
		participant Power Provider
		participant Inazuma
		participant Co2.storage
		participant Hypercert Contract
		participant Inazuma Contract

		Power Provider ->> Inazuma: Production
		Inazuma ->> Co2.storage: Production Record
		Co2.storage ->> Inazuma: CID
		Inazuma ->> Co2.storage: Sign CID
		Inazuma ->> Hypercert Contract: Mint hypercert with CID
		Inazuma ->> Inazuma Contract: Set contributer of CID
		Power Provider ->> Inazuma Contract: Verify CID and content and receive payment

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Buyer workflow

sequenceDiagram
		participant Power Buyer
		participant Inazuma
		participant Co2.storage
		participant Hypercert Contract
		participant Inazuma Contract

		Power Buyer ->> Inazuma: Amount
		Inazuma ->> Power Buyer: list of hypercerts to buy
		Power Buyer ->> Inazuma Contract: list of hypercerts
		Inazuma Contract ->> Hypercert Contract: Transfer hypercerts to buyer
		Power Buyer ->> Co2.storage: Check the CID of hypercerts

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Build & Installation

Inazuma is a monorepo managed using turbo. You can find the source code for each package in the apps/web and apps/backend directory.

• apps/web is the web frontend for Inazuma. It is built using Next.js.
• apps/backend is the web backend for Inazuma.It is built using AWS EC2 , Express , Co2.Storage-api , docker and ipfs-unixfs.

Backend Set Up

cd apps/backend

Setting environment variable

Create a new .env file and add variables as below. ESTUARY_API_KEY and FG_TOKEN can get from co2.storage. INFURA_API_KEY get from Infura. PK: 0x{Your private key} PKI: Your private key ADDRESS: Your address

ESTUARY_API_KEY=
INFURA_API_KEY=
PK=
FG_TOKEN=
ADDRESS=
PKI=

Deploy the contract

cd src/contracts

There are two contracts in the folder, we have to deploy both of them.

Greencoin contract

• Deploy Greencoin.sol and record the contract’s address.
• Mint enough Greencoin to use.

Inazuma contract

• Change the _greencoin_address

address constant _greencoin_address = //Your Greencoin contract address;

• Deploy the contract

After deploying both of contract

• Go hypercert contract and set setApprovalForAll to your contract address. This makes your contract can transfer hypercert you mint.

• In the Greencoin contract, set approve to your Inazuma contract. This makes Inazuma contract can transfer your greencoin to provider as payment.

Setting Code

blockchain.js

cd ..
cd blcokchain

There is blockchain.js here and edit inazuma inside to your inazuma contract address.

const inazuma ="0x65....c35";
const hypercert="0x82....d07";

contract.ts and api.ts

Go apps/web/service from root of project you can find contract.ts and api.ts. First, in contract,ts edit contract address to your inazuma contract address in line 111. Next, open api.ts and set host as “http://127.0.0.1:8080”.

const contractAddress: any = {
	'Goerli': '0x65....c35'
}

greenCoinBalance.tsx

Go apps/web/components from root of project and find greenCoinBalance.tsx, and edit address variable to your greencoin contract address.

Final

you can run:

turbo dev

now Inazuma is displayed.

Contributors

• Backend + Inazuma Contract: SoloLin
• Frontend: JakeKuo
• Frontend: EricLin
• CI/CD + technology support: kidneyweakx