This combined chart displays annual solar energy production as steel-blue bars and wind energy as a red line with points, using the `renewable_energy_production.csv` dataset. Built with React and D3 v7, the SVG visualization subsamples the data every tenth year for clearer bar visibility. It uses `d3.scaleBand` for the x-axis, `d3.scaleLinear` for the y-axis, and `d3.line` for the wind trend, complete with rotated tick labels, gridlines, axis labels, and a custom legend.