Self-directed project
Energy and Renewable: Machine Learning for the Power Grid
Junior Machine Learning Engineer · AI / ML · October 2026
A ProoV case study · educational project, not employment
Built a turbine TEY predictor end to end using leakage-free sensor features, a LinearRegression baseline, and a tuned RandomForest. Evaluated on a locked-away later time period, the model achieved MAE 1.532 MWh, RMSE 1.937 MWh, and R² 0.9833, and the candidate documented the model’s intended use, limits, and monitoring plan in a concise model card.
Graded against
- Build and validate the model correctly35%
- Optimize and evaluate honestly25%
- Write the Model Card (clarity + honesty)25%
- Explain it to a non-expert15%
Passed · pass mark 60/100
What stood out6
- Correctly dropped CO and NOx as downstream emission outputs to avoid target leakage
- Compared a linear baseline against a tuned RandomForest and showed a clear held-out MAE improvement
- Reported held-out MAE, RMSE, and R² and interpreted residual behavior rather than relying on a single flattering metric
- Wrote a model card that names intended use, limitations, monitoring, and the validation split
- Leakage-Free Feature Selection
- Held-Out Model Evaluation
The work I submitted20 tasks
12 tasks · 13 lines · Python, JavaScript · 8 written answers · 434 words
- Problem Frame199 characters
- Leakage Flags113 characters
- Train Validate BaselinePython · 1.4k characters
- Train Validate Forest943 characters
- Train Validate124 characters
- Tune Evaluate SetupPython · 1.5k characters
- Tune Evaluate ResidualsPython · 2 lines
- Tune Evaluate132 characters
- Residual Read286 characters
- Drift Monitor95 characters
- Model Card2.1k characters
- Teach BackJavaScript · 847 characters
- Problem Frame12 words
- Leakage Flags1 word
- Train Validate Baseline141 words
- Train Validate Forest76 words
- Train Validate1 word
- Tune Evaluate Setup110 words
- Tune Evaluate Residuals92 words
- Tune Evaluate1 word
Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.