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Blockchain-Connected Mobile App

Digital Experience Rebuild

Brooklyn Microgrid

LO3 Energy set out to rethink how communities use energy — letting neighbors buy and sell solar power directly through blockchain. RSM designed and developed the mobile app that brought this concept to life — translating technical complexity into a beautiful, real-time interface for everyday users.

Client

LO3 Energy

Services

UX/visual design

Front-end development

Payment gateway integration

Blockchain API integration

Payment gateway integration

Map-based interface

Marketplace design

The Challenge

Make peer-to-peer, blockchain-based energy trading accessible to everyday users through a mobile app.

Brooklyn Microgrid aimed to disrupt how we interact with energy: replacing top-down utilities with local trading networks powered by blockchain. Participants would generate excess solar energy and sell it directly to neighbors — all tracked, verified, and transacted on-chain.

But the back end was only part of the system. To work in the real world, the platform needed a mobile interface that could surface real-time data, support transactions, and make users feel confident and engaged. LO3 turned to RSM to bring that vision to life.

requirements

1.

Display real-time energy generation and usage

2.

Visualize transactions clearly and beautifully

3.

Integrate cleanly with a complex blockchain backend

4.

Work reliably on both Android and iOS devices

5.

Feel trustworthy and approachable to a non-technical audience

1.

Display real-time energy generation and usage

3.

Integrate cleanly with a complex blockchain backend

5.

Feel trustworthy and approachable to a non-technical audience

2.

Visualize transactions clearly and beautifully

4.

Work reliably on both Android and iOS devices

The Process

RSM designed and built a polished mobile app that visualized live energy flow, supported transactions, and elevated the conversation around community-powered energy.

The project wasn’t just about app development — it was about storytelling through interface. RSM helped distill a complex, invisible system into something people could see, touch, and understand.

The Process

RSM designed and built a polished mobile app that visualized live energy flow, supported transactions, and elevated the conversation around community-powered energy.

The project wasn’t just about app development — it was about storytelling through interface. RSM helped distill a complex, invisible system into something people could see, touch, and understand.

The Process

RSM designed and built a polished mobile app that visualized live energy flow, supported transactions, and elevated the conversation around community-powered energy.

The project wasn’t just about app development — it was about storytelling through interface. RSM helped distill a complex, invisible system into something people could see, touch, and understand.

what we did

Intuitive MOBILE FIRST Design

Crafted mobile UI for iOS and Android, focused on approachability and clarity

Live Energy Tracking

Map-based dashboard showing real-time local generation, usage, and impact

Secure DISTRIBUTED Transactions

Integrated with blockchain APIs to enable peer-to-peer energy trades

Reusable Architecture

App development supported replication and localization for additional markets

Stakeholder-Ready

Created a high-fidelity product that became the visual centerpiece of LO3’s platform and mission

The Outcome

The Brooklyn Microgrid app served as a pioneering proof of concept for decentralized, peer-to-peer energy markets. It became the flagship demo for LO3’s Exergy platform — helping to build momentum and visibility for local energy trading as a viable model.