rauell1 (Roy Otieno | Energy & Mobility Systems) · GitHub
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rauell1/README.md

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Building practical clean energy and electric mobility systems in Africa 🌍

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👨‍💻 About Me

I am an Agricultural and Biosystems Engineer based in Nairobi, Kenya 🇰🇪.

My work combines renewable energy engineering, electric mobility infrastructure, and data driven operations. I focus on turning technical plans into systems that run reliably in real conditions.

At SafariCharge, I work across planning, design, deployment, and optimization of EV charging and power systems for growing urban and commercial demand.


🚀 Recent Projects

1) Nairobi EV Charging Rollout

  • Planned multi site charger deployments with load balancing and phased grid upgrades.
  • Built commissioning and operations workflow for charger uptime and response handling.
  • Improved handoff quality between engineering and field teams.

2) Commercial and Industrial Solar Design Suite

  • Produced grid tied PV designs with yield modeling and financial sensitivity checks.
  • Standardized cable sizing, inverter matching, and protection selection inputs.
  • Reduced early stage redesign cycles through repeatable templates.

3) Productive Use of Energy for Irrigation

  • Designed solar water pumping layouts for agricultural productivity improvement.
  • Compared storage and direct drive configurations across seasonal demand profiles.
  • Aligned pump sizing with site specific crop and water constraints.

4) Charging Telemetry and Reliability Dashboarding

  • Built telemetry pipelines for charger status, power draw, and availability metrics.
  • Structured alert logic for fault patterns and low utilization windows.
  • Enabled faster diagnostics through clearer operational views.

🎯 What I Build

Area Delivery Focus
⚡ EV Infrastructure Site design, load management, CPMS and OCPP integration
☀️ Solar PV Systems Grid tied and off grid design, simulation, optimization
📊 Energy Analytics Feasibility models, yield forecasting, performance tracking
🌾 Productive Use of Energy Solar pumping design for agriculture and rural systems
⚙️ Technical Workflows Engineering templates, QA checks, and deployment playbooks

🛠️ Tech Stack

💻 Software and Development

Pandas • NumPy • SQL • REST APIs • Data Telemetry

⚙️ Engineering Tools and Standards

Field Tools and Standards
Solar Design PVsyst • Homer Pro
CAD and Modeling AutoCAD • SketchUp
EV Infrastructure OCPP • EVSE
Standards IEC • IEEE • KEBS

📈 Delivery Highlights

  • Commissioning focused engineering for EV charging reliability
  • Data backed feasibility workflows for solar and mobility projects
  • Cross functional execution from site survey to operating system

📊 GitHub Stats and Visualizations

Top Languages Roy's GitHub Streak

🐍 Contribution Snake

Contribution Snake


🌐 Connect with Me

Portfolio Email LinkedIn Twitter GitHub

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    Energy & Mobility Systems | Developer — Portfolio, case studies, and writing.

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