In the latter case, that of rooftop solar panels, the impact is twofold: they add supply by injecting their surpluses into the grid and reduce demand when there is sunshine. Not only because of the weather - it was a day of sunshine, wind and moderate temperatures, the most favorable conditions for both technologies to perform at their best - but also because of the strong increase in their total generation capacity in recent times, both in large installations and in the form of self-consumption. Tuesday’s renewable record was made possible by the confluence of exceptional photovoltaic and wind production. This apparent dissonance is explained both by exports to France, Portugal and, to a much lesser extent, Morocco and Andorra, and by the consumption of pumped hydro plants, which expend energy during the cheaper hours and generate when prices are higher, and whose data is not included in the figures provided by the REE. What it means is that, in that time slot, clean sources produced enough to cover all domestic needs. The fact that for a good part of Tuesday the Sun, wind and water generated more electricity than was demanded by companies and households in mainland Spain (in the Balearic and Canary Islands archipelagos, fossil generation is always greater) does not mean that nuclear, gas - whether combined cycle or cogeneration - and coal-fired plants stopped feeding energy into the system altogether. Above all, it increases the incentives - both environmental and economic - to invest in storage and to electrify transport, industry, and heating, which are intensive in oil or natural gas consumption.
The achievement - which was backed up by figures sent to EL PAÍS by the state electricity provider Red Eléctrica de España (REE) - took place, moreover, on a typical weekday, when the consumption pattern is higher, and not on a holiday or at the weekend, when demand falls sharply.Ī huge drive in the installation of renewables - especially photovoltaics - is enabling Europe’s fourth-largest economy to cover an increasing part of its electricity needs with renewable energy, something that not only substantially reduces the country’s carbon footprint but also applies downward pressure on prices during daylight hours. and 7 p.m., the generation of green electricity was more than enough to cover 100% of Spanish peninsular demand, a milestone that had already been reached on previous occasions, but not for such a prolonged period. The Spanish power grid on Tuesday tasted an appetizer of the renewable energy banquet that is expected to flourish in the coming years.
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