E

energy-efficiency

Wattonomy is an open-source energy decision intelligence platform that models real-world heating, cooling, and utility systems based on location, cost, and performance data. It evaluates installation costs, monthly energy usage, and lifetime expenses while incorporating verified federal, state, and utility incentives. By combining deterministic financial modeling with transparent, source-backed AI explanations, Wattonomy helps users understand the true long-term cost of energy systems before making installation decisions. https://roxanneardary.com/wattonomy/

FieldCell Systems is an open-source hydrogen energy storage platform designed to replace traditional battery systems with long-duration, repairable, and modular infrastructure. It converts renewable electricity into hydrogen for storage and back into electricity through a reversible system built for homes, farms, and microgrids. The project emphasizes transparency, sustainability, and reduced reliance on disposable chemical batteries that contribute to landfill waste. https://roxanneardary.com/fieldcellsystems/

VoltMesh is an open-source mobility platform that replaces proprietary in-car systems with a universal, hardware-agnostic operating layer. It unifies screen mirroring, real-time vehicle diagnostics, EV energy intelligence, and fleet coordination into a distributed mesh network that enables smarter routing, safer robotaxi dispatch, and cross-vehicle swarm intelligence. https://roxanneardary.com/voltmesh/

FuelAI is an open-source platform that helps users find the cheapest way to power their journey by comparing gas, electricity, and other energy types in real time. Using AI-driven insights and smart routing, it calculates true cost per mile and recommends the most cost-efficient routes and energy stops. Built on a global, collaborative infrastructure, FuelAI brings transparency and intelligence to energy pricing. https://roxanneardary.com/fuelai/

[2016-2019] ESP8266 WiFi-to-IR bridge for universal air conditioner control. Supports 60+ IR protocols, temperature monitoring, and web configuration. Open-source version of NextAir smart AC technology.