Self-directed project
Energy and Renewable: Machine Learning for the Power Grid
Junior Machine Learning Engineer · AI / ML · August 2026
A ProoV case study · educational project, not employment
Built an end-to-end TEY predictor for a gas turbine using leakage-free sensor features and a genuine time-based holdout. Compared a LinearRegression baseline with a tuned RandomForest, then evaluated the final model on held-out data with MAE, RMSE, R2, and a residual read. Also wrote a concise model card explaining intended use, excluded leakage features, limitations, and drift monitoring.
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 because they are downstream emission outputs not available at prediction time.
- Used an earlier-years/later-years split to keep the test set genuinely held out.
- Reported held-out MAE, RMSE, and R2 for the tuned forest and compared it against a linear baseline.
- Noted residual behavior and acknowledged that strong R2 does not prove generalization beyond this plant.
- Leakage-Free Feature Selection
- Honest Time-Based Evaluation
The work I submitted20 tasks
12 tasks · 13 lines · Python, JavaScript · 8 written answers · 480 words
- Problem Frame163 characters
- Leakage Flags113 characters
- Train Validate BaselinePython · 1.4k characters
- Train Validate Forest943 characters
- Tune Evaluate SetupPython · 1.5k characters
- Tune Evaluate ResidualsPython · 2 lines
- Tune Evaluate130 characters
- Residual Read299 characters
- Drift Monitor93 characters
- Train Validate124 characters
- Model Card838 characters
- Teach BackJavaScript · 714 characters
- Problem Frame12 words
- Leakage Flags1 word
- Train Validate Baseline141 words
- Train Validate Forest76 words
- Tune Evaluate Setup110 words
- Tune Evaluate Residuals92 words
- Tune Evaluate1 word
- Residual Read47 words
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.