From early January to mid-February, Spain experienced consistent rainfall, which not only filled the reservoirs but also significantly lowered electricity prices in the market. The hydroelectric plants capitalized on this abundance of water, producing the cheapest electricity rates seen in the last five years. This situation acts as a case study for the future direction of Spain's energy mix, as outlined in the Integrated National Energy and Climate Plan (PNIEC).

The hydroelectric plants have shown how, in times of excess water, they can contribute to a more sustainable energy model. However, there are still uncertainties regarding the country's ability to meet storage targets, and potential nuclear plant closures could complicate the energy landscape further. The heavy reliance on gas and combined cycle plants remains a critical concern as Spain transitions to greener energy sources.

In January, the average price per megawatt-hour in the wholesale market was recorded at 71.78 euros, marking it as the lowest price for that month compared to previous years. This drop in prices highlights the potential for hydroelectric power in stabilizing and reducing energy costs during periods of unfavorable weather conditions, and it also emphasizes the importance of strategic planning in the energy sector to mitigate future challenges related to supply and sustainability.