Skip to content
View hj-nakamura421's full-sized avatar

Highlights

  • Pro

Organizations

@uk-renewable-intelligence

Block or report hj-nakamura421

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
hj-nakamura421/README.md

HJ Nakamura

Mechanical Engineering at Imperial College London
Building transparent software for energy infrastructure, engineering data and decision support.

Live energy platform · Forecasting pipeline · Formula Student telemetry

What I build

I am interested in the point where physical systems, imperfect data and engineering decisions meet. My projects turn public infrastructure records and vehicle telemetry into tools that can be inspected, tested and used—not just notebooks that produce a number.

My default is to establish a transparent baseline, validate it on genuinely later data, and add complexity only when it improves reliability.

Featured system: UK Renewable Infrastructure Intelligence

UK Renewable Infrastructure Intelligence is a deployed screening and forecasting platform for the UK renewable-energy pipeline.

Current release Evidence
Public planning records 13,009
Historical REPD snapshots 15
Projects with linked forecasts 6,189
Projects with usable map coordinates 12,980

What I engineered:

  • cleaned and reconciled changing Renewable Energy Planning Database extracts;
  • reconstructed project histories and stage transitions through time;
  • built discrete-time survival forecasts with censoring and temporal holdouts;
  • compared empirical, logistic and CatBoost candidates, retaining the simpler baseline when the challenger did not improve Brier reliability;
  • separated macroeconomic and policy stress assumptions from the trained forecast;
  • shipped a JavaScript and Leaflet public dashboard alongside a Python and Streamlit modelling workbench;
  • documented data quality, calibration, model governance and known limitations.

Explore: live platform · methodology · model card · architecture

Selected engineering projects

Project What it demonstrates Stack
Renewable Intelligence platform Product design, interactive mapping, project screening and decision-focused visualisation JavaScript, Leaflet, GitHub Pages
Forecasting and data pipeline Entity resolution, survival modelling, temporal validation, scenario analysis and reproducibility Python, pandas, scikit-learn, CatBoost, Streamlit
Formula Student telemetry Drivetrain test analysis, thermal monitoring, voltage-sag detection and lap summaries Python, Plotly, Streamlit

Engineering principles

  • Validate in time. Random splits are not enough for deployment-style forecasting.
  • Promote on evidence. A more complex model is useful only when it improves out-of-sample reliability.
  • Expose uncertainty. Assumptions, missing data and model limitations belong in the interface.
  • Build for inspection. Clear documentation, tests and reproducible pipelines are part of the product.

Tools I use

Python · pandas · NumPy · scikit-learn · CatBoost · Streamlit · Plotly · JavaScript · Leaflet · Git · GitHub Actions

Currently improving

  • shareable project and filter URLs;
  • historical project timelines and comparable-project evidence;
  • faster, lazy-loaded dashboard data;
  • calibration views that make forecast reliability understandable to non-specialists.

I am open to engineering, energy, automotive and data-focused internship conversations.

Pinned Loading

  1. uk-renewable-intelligence/uk-renewable-intelligence.github.io uk-renewable-intelligence/uk-renewable-intelligence.github.io Public

    UK Renewable Intelligence — project screening, mapping and scenario forecasting for the UK renewable-energy pipeline

    HTML 1

  2. imperial-fs-telemetry imperial-fs-telemetry Public

    Formula Student drivetrain telemetry analysis for motor, inverter and battery health. Python, Streamlit and Plotly.

    Python

  3. uk-renewable-energy-dashboard uk-renewable-energy-dashboard Public

    Leakage-aware forecasting and scenario analysis across 13,009 UK renewable projects. Python, Streamlit and survival modelling.

    Python