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Trust-Minimized Electricity Meter Protocol.

Nova Heidt Evi Nova

www.wattwitness.com

A Chainlink 2025 Hackathon Project

30.05.2025 - 29.06.2025

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Regulation blocks Tokenization by locking security tokens behind KYC/ALM.

The Problem

Lack of regulation and corruption leaves investors vulnerable to fraud & scams.

1. MACRO

2. MICRO

In order to tokenize a solar park in Guatemala, we need a trust-minimized way of proving energy production data to investors.

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Auditors & Regulation will not be available to establish trust.

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The Solution

Concept

A trust-minimized tamper-resistant hardware module that cryptographically signs electricity data, enabling trustless verification and transparent on-chain reporting.

Solar Panel

Electricity Meter

Shelly EM

Microcontroller

ESP32 Dev Board

Cryptographic Secure Element

ATECC608

Monitoring & Broadcast

Raspberry Pi 4

Oracle

Chainlink Functions

Blockchain

WattWitness

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Use Cases

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Yield bearing instruments

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Solar Parks typically generate between 10-20% yield p.a. Using WattWitness, Solar Parks could sell right to dividends.

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Prosumer Microgrids

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Electricity producers generate kWh tokens and the electricity consumers use them to pay for used power.

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CO₂ Tokenization

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Solar parks natively generate CO₂ certificates as a byproduct of electricity production.

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Summary & Outlook

  • WattWitness signs smart meter data with a secure chip and sends it on-chain.

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  • Could be used for any use case needing energy consumption or production data.

Not just energy infrastructure tokenization. Also e.g. kWh tokenization, CO2 certificate tokenization, ...

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  • Not the be-all and end-all but a starting point to build projects around.

We give good a actors a way to prove their electricity data in a trust-minimized way.

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Nova Heidt Evi Nova

www.wattwitness.com