Uninterruptible Power Supply of the Vatican

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Technical FAQs 4

Why does the Vatican have a solar system?

The Vatican’s solar shift is a culmination of a political and spiritual mission years in the making. In 2024, the late Pope Francis issued an apostolic letter ordering the construction of an agrivoltaic solar plant to supply the Vatican with energy from Santa Maria di Galeria. On the same site, the new solar infrastructure now stands.

What did Pope Francis say about solar power?

“Fratello sole” or “Brother Sun” was Pope Francis’ Apostolic Letter that detailed how solar power is an invitation for people around the world to make lifestyle changes to counter global warming and the “pervasive” use of fossil fuels.

Does Vatican City have solar power?

Yes. Vatican City has joined Albania, Bhutan, Nepal, Paraguay, Iceland, Ethiopia and the Democratic Republic of Congo to become one of just eight countries in the world to generate 100% of its electricity from renewable sources. Several church organizations around the world are making the move to solar.

Why did Acea install a solar energy system in Vatican City?

This project was carried out by ACEA, an Italian utility company, which installed systems to meet all of the Vatican’s energy demands. What makes this significant is not the size, but that Vatican City is only 0.49km², and there was no loud campaign, no press tour, just action set in stone and implemented.

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Jun 26, 2024 · The future installation will be projected to “ensure, not only the power supply of the radio station existing there, but also the complete energy support of Vatican City State,” he wrote.

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Dec 2, 2025 · Vatican City is on track to become the 8th country in the world to generate 100% of its electricity from renewable energy, following Pope Francis'' announcement about plans to

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