‘Record’ petition against Spanish tax on solar self-consumption and storage

LinkedIn
Twitter
Reddit
Facebook
Email

In less than a week, more than 180,000 Spanish citizens have signed a petition against plans for a new ‘sun tax’ on use of batteries for residential self-consumption of solar energy in Spain.

Meanwhile, more than 150,000 citizens signed a petition calling for the immediate resignation of José Manuel Soria, the minister of industry, energy and tourism, whose department put forward the draft law.

The new tax could increase payback time for solar-plus-storage owners from around 16 years to 31 years. Hefty fines for infringement, capped at €60 million (US$67.7 million), had also been proposed, which is double the fine for releasing nuclear waste.

The tax applies to grid-connected solar PV installations of up to 15kW. Depending on the size of the installation, the fee would be from €8.9 (US$10) per kilowatt for domestic consumers up to €36 (US$40.6) per kW for medium size businesses.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

José Donoso general director of the Spanish PV association, Union Espanola Foltovoltaico (UNEF), told PV Tech that more than 35,000 comments against the minister were presented. He said the government internet server crashed several times under the number of signatures and comments. He also said the petition had “record” numbers in such a short time.

Waiting for the ministry to make a decision, Donoso said: “We will see if the rules will change, or only cosmetic change, or nothing.”

A statement on Avaaz, the online platform for the petition, said: “The Ministry of Industry is working around the clock to protect the powerful electric oligopoly imposing new barriers to economically asphyxiate those citizens who wish to produce their own electricity using solar energy. Let us unite to prevent this shameful [sun tax]”.

You can sign the petition here (Spanish language).

More than 150,000 citizens also signed a petition calling for the immediate resignation of José Manuel Soria, the minister of industry, energy and tourism.

3 November 2026
Málaga, Spain
Understanding technology and supplier selection for Europe’s utility-scale PV market in 2027. PV ModuleTech Europe 2026 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of PV module, inverter and battery supplier selection; product availability, technology offerings, supply chain traceability, quality assurance, factory auditing, system reliability, and supplier bankability.

Read Next

October 8, 2026
Annual battery energy storage system (BESS) failures per-deployed-GWh declined 99% globally between 2018 and 2025, as installed BESS capacity grew exponentially.
October 7, 2026
US energy holding company and project developer-owner NextEra Energy has suspended operations at two energy storage facilities in Long Island, New York, US.
October 7, 2026
EDF Power Solutions Australia has referred a wind-plus-storage project featuring an 800MWh BESS for assessment under Australia’s EPBC Act.
October 6, 2026
Atmos Renewables has reached financial close on the 400MW/1,600MWh Teebar battery energy storage system (BESS) in Queensland, Australia.
October 6, 2026
IPP Linea Energy has closed a debt financing and preferred equity commitment for its 250MW/500MWh Mesa View energy storage project in Upton County, Texas, US.