The renewables share in Spain’s total electricity production fell to 42.1% in September from 46.4% in August, according to the latest preliminary report from Spanish power grid operator Red Electrica de Espana (REE).
The September output from renewables was overshadowed by nuclear and combined-cycle gas plants. Solar photovoltaic plants, with a 16% share of the power mix, ended their three-month streak as the most productive of all of Spain’s renewables. They still marked a new accomplishment in September, with the year-to-date production totalling 27,902 GWh on September 5, more than the entire solar PV output in 2022, REE said.
Spain’s wind farm fleet generated 17.3% of the nation’s electricity in September. However, the wind power output dropped by 14.1% year-on-year to 3,600 GWh.
In January through September, the renewables share was 49.4%, led by wind power (21.8%), nuclear (20.7%), combined-cycle gas (17.8%) and solar PV (15.2%).
The table below shows power production figures for major technologies in Spain in September:
| Technology: | Estimated production in GWh: | y/y change: | Share in September: |
| Wind | 3,600 | -14.1% | 17.3% |
| Hydro | 1,075 | -6.8% | 5.2% |
| Solar PV | 3,327 | 23.3% | 16% |
| Solar CSP | 405 | -7.3% | 1.9% |
| Other renewables | 294 | -13.8% | 1.4% |
| Nuclear | 4,565 | -5.8% | 21.9% |
| Cogeneration | 1,462 | 97.8% | 7% |
| Combined-cycle gas | 4,872 | -36.8% | 23.4% |
| Coal | 404 | -36.1% | 1.9% |
Spain’s gross demand for electricity in September was estimated at 19,670 GWh, down by 3.1% year-on-year. Adjusted for the effects of working hours and temperatures, demand fell by 2.4%.
