A major problem in relation to the massive use of renewable energy sources lies in the integration of electricity production from these sources into the electricity management and distribution system of each country. Renewable energies have the advantage of a lower environmental impact compared to other energy sources. However, their performance is conditioned by variations in weather and climate and is therefore highly intermittent.

One of the possible ways to address the problem of the intermittency of renewable energy resources is to study their spatio-temporal complementarity. Regional and local climate characteristics condition the availability of wind and solar energy at a given location. Depending on these characteristics, there may be spatial complementarity between solar resources, between wind resources and between solar and wind resources themselves.

Such complementarity would exist if the availability of the resources has complementary periods over a given region. On the other hand, there may be temporal complementarity between solar and wind resources in a given location over time. Knowledge of this complementarity would make it possible to reduce the intermittency of the two resources separately, increasing the security of electricity supply based on renewable sources. Thus, knowledge of spatial complementarity could be very useful when selecting areas for the location of solar and wind installations.

On the other hand, if there is local-scale complementarity between solar and wind resources, it could be used to design facilities that supply electricity with greater stability and security. This project analyzes the temporal and spatial complementarity between solar and wind resources in Andalusia on a daily scale using the WRF meteorological model outputs. In particular, a simulation of the full year 2007 is analyzed, with a spatial resolution of 9 km and a temporal resolution of one hour. From this simulation, series of daily integrated wind and solar power values were obtained. The study is carried out for each season of the year separately and for the whole period.