As part of my MSc in Data Science at Copenhagen Business School, I recently completed a project in Predictive Analytics focused on forecasting daily electricity load in Denmark, a country with one of the highest levels of renewable energy integration. The study applied time series approaches like ARIMA and seasonal ARIMA, as well as dynamic regression models that included solar and wind generation data.
The goal was to explore how these methods perform when renewable energy is part of the system, and to address key questions: How do different forecasting techniques compare? Does including renewable generation improve accuracy? And how does forecast performance change across different time horizons and approaches?
This type of research is becoming increasingly important as energy systems worldwide shift toward renewables. Reliable forecasting helps grid operators balance supply and demand, plan for variability, and ensure stable access to electricity as countries move closer to decarbonization targets.