‘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.

8 September 2026
Barcelona, Spain
Battery & Energy Storage Tech Europe (BESTE) is Europe’s industrial scaling platform for stationary and industrial battery applications — not EVs. Taking place 8–9 September 2026 at Fira de Barcelona, BESTE brings together utilities, IPPs, energy-intensive industries, data centres, ports, rail, maritime, defence and aerospace OEMs — all deploying or integrating battery storage at scale. Over 100 companies already confirmed — including EDP Renewables, Acciona, Endesa, Naturgy, Neoen, Galp, Basquevolt and Veolia — alongside 40+ expert speakers and international institutional support from BEPA, BVES, LDES and Volta Foundation. Where Europe’s battery & ES ecosystem turns projects into reality.
15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.

Read Next

July 8, 2026
Developer New Leaf Energy withdrew its application for a battery energy storage system (BESS) in Santa Cruz County, California, US, choosing to seek approval through the California Energy Commission (CEC).
July 8, 2026
L-H Battery Company commenced lithium-ion (Li-ion) cell production at its Jeffersonville, Ohio, US plant this month, for automotive and stationary power applications.
Sponsored
July 8, 2026
Energy-storage.news spoke with Gerry Liu, GM of Hiconincs, at Intersolar Europe in Munich. We discussed the company’s residential energy offerings and its plans for the European market.
July 8, 2026
Dutch long-duration energy storage (LDES) developer Elestor has partnered with Windpark Zeewolde to deploy a 20MW/200-800MWh hydrogen-iron flow battery storage system at what is described as Europe’s largest onshore wind farm.
July 8, 2026
The Australian government has introduced a dedicated First Nations Set Aside pilot into both Capacity Investment Scheme Tenders 9 and 10.