decentralize

Decentralized Peer-to-Peer Energy Trading App with Ethereum

The Tech Stack

Let’s start with the core stack:

  • Ethereum + Smart Contracts: Core logic + ERC-1155 tokens for energy credits.
  • Chainlink Oracle: Simulated solar output verification.
  • React + Next.js: Frontend UI.
  • TailwindCSS: Fast styling.
  • wagmi + ethers.js: Wallet interaction.
  • MetaMask: User authentication and ETH payments.

No backend. No database. Just pure Web3 chaos.

First Weeks: Overconfident and Underprepared

I was cocky. I thought I could whip up a smart contract and a frontend in a weekend.

I was wrong.

I wasn’t just building a dApp. I was trying to represent actual electricity on-chain. That meant dealing with off-chain sensors, oracle data, real humans, and yes—regulations.

Still, I hacked together a basic flow:

  1. Producers mint energy tokens if verified by the oracle.
  2. Consumers buy those tokens.
  3. ETH changes hands. Everyone’s happy.

It broke at least 14 times in the first two days. And yes—I nearly gave up.

React Frontend: A Love-Hate Story

React is powerful, but syncing state with on-chain data and wallet connections nearly broke me.

  • MetaMask would go silent mid-session.
  • State would desync between reads and writes.
  • The UI froze whenever I updated wallet balances.

At one point, I rewrote part of the logic in vanilla JS just to make a point. Then I crawled back to React because—like it or not—it’s still the best option for complex dApps.

First Trade: Beer, Red Bull, and Craigslist UI

I bribed two friends with beer to test a transaction.

  • One acted as the producer (with mocked solar output).
  • The other bought the credits using ETH.

The transaction worked. The token transferred. The ETH landed. It was clunky. The UI looked like Craigslist from 2004. But it worked.

I celebrated with a Red Bull and terrible pizza. Worth it.

The Simplification Breakthrough

I started with way too many features:

  • Dynamic pricing
  • Leaderboards for “greenest neighbors”
  • DAO-style dispute resolution

It was a mess.

Eventually, I cut it all down to the core:

  • Connect wallet
  • Mint energy tokens (if approved)
  • List tokens
  • Buy tokens
  • ETH in, energy credits out

That’s it. Clean. Minimal. It took me three months to get there.

The Oracle Mess

Off-chain data is hard. My first prototype faked solar production. But for real users, I needed sensors and real data.

I tried everything:

  • Chainlink + Raspberry Pi
  • A startup’s solar API
  • Manual verification via batch uploads

Nothing worked smoothly. Chainlink was expensive. APIs broke. Sensors bugged out.

Eventually, I settled on a daily batch system where I sent hashed proofs of production to the contract. It wasn’t elegant, but it was real. And sometimes, done is better than perfect.

The UX Reality Check

When I showed the MVP to real rooftop solar users in Delhi, the first feedback stung:

“It’s cool… but what’s MetaMask?”
“Why do I need crypto to sell my energy?”

That hit hard.

Web3 tools are not accessible to most people. So I started building fiat on-ramps and gas-fee abstractions. Users shouldn’t have to understand wallets or ETH to trade energy.

Lessons Learned

Ethereum is powerful—but user-hostile.

You need to build layers of human-friendly UX on top.

Smart contracts don’t forgive.

One wrong line = permanent mistake. Triple-check everything.

React is a blessing and a curse.

It’s flexible but maddening. Embrace the pain.

Don’t build for devs.

Build for people who don’t care about the tech. They’re the real users. Discord > Docs.

Most of my breakthrough moments came from community help—not Stack Overflow.

Read more about tech blogs . To know more about and to work with industry experts visit internboot.com .

Final Thoughts: Is It Worth It?

I’m still testing this in local grids in Pune and Noida. It’s not on mainnet. Yet.

Some days I want to quit. Others, I feel like I’m building something that actually matters.

The first time I saw a token transfer succeed in a real trade, it felt more meaningful than any grade I ever got in college.

If you’re thinking about building something wild, messy, decentralized, and maybe even dumb—do it. It might break you. But it might also build you.

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