Spanish Households Save €10 Monthly on Electricity Due to Renewables Growth

Spanish households are paying about €10 less each month on electricity because of wind turbines and solar panels added in the last five years. A report modeled a regulated tariff used by roughly one-third of households and compared current bills with a scenario that excluded the new renewable capacity.

The analysis found that typical bills would be 19 percent higher if electricity prices remained as closely tied to gas prices as they were in 2021. Gas set the wholesale price in 52 percent of hours that year; the share fell to 9 percent in the first five months of 2026.

In 2026, the same report found bills remained largely unaffected after a 60 percent jump in gas prices. An analyst who led the study said electricity bills actually declined slightly in April despite the gas increase, in contrast to the earlier period when bills rose immediately.

Wind and solar supplied 33 percent of Spain’s electricity in 2021 and 42 percent in 2025. A researcher at a Basque technology center who reviewed the findings noted that gas-fired plants still set prices during some hours and that limited storage capacity reduces the system’s ability to absorb excess renewable output.

The report accounted for balancing costs but did not include expenses for additional grid infrastructure.