Vienna's Citizens' Solar & Wind Power Plants
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page
Since Wien Energie's first Bürgerkraftwerk opened in Donaustadt in 2012, the program has grown to more than 30 citizen solar and wind plants. Residents buy up to five €250 'Sonnenpakete' and get a guaranteed minimum of €52.80 a year per package over a five-year term, paid as vouchers against their electricity bill and rising with the sunshine the panels catch. More than 12,200 people have invested over €40 million to date.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Sources
Show your work What this page rests on and what it can’t tell you · all 7 claims with their sources · the forensic record
Evidence Passport · public beta 7 addressable claims, 3 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 7
The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
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quantitative
Since Wien Energie's first Bürgerkraftwerk opened in Donaustadt in 2012
Sources carrying this claim
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quantitative
the program has grown to more than 30 citizen solar and wind plants
Sources carrying this claim
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quantitative
Residents buy up to five €250 'Sonnenpakete'
Sources carrying this claim
clm-75cf62100e0935d1
quantitative
a guaranteed minimum of €52.80 a year per package over a five-year term
Sources carrying this claim
clm-d54f93966954caad
descriptive
paid as vouchers against their electricity bill
Sources carrying this claim
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descriptive
rising with the sunshine the panels catch
Sources carrying this claim
clm-47d7bab6eb07a672
quantitative
More than 12,200 people have invested over €40 million to date.
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:8aa38e762ec9b634fe757c038974d2625e9278b3d93c141e39cf74b5e5c23cf7
- 7
- of 7 claims mapped
- 3
- source dossiers
- 1
- publication dates recorded
- 0
- archives linked
- 0
- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- Wien Energie
- Actor types
- utility
- Funding model
- utility
- Funding description
- Citizen crowd-investment via Wien Energie 'Sonnenpakete' (€250 each, max. 5 per person)
- Cost
- €40m+ cumulative citizen investment since 2012
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
3 source dossiers
Smart City Wien (authority)
- Stable source ID
src-10e66b731937b54c- Publisher
- Name not classified · smartcity.wien.gv.at
- Type / language
- web-page · language not classified
- Published
- Not recorded
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-22
- Dossier created
- 2026-08-23
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Official platform profiling the city's community energy plans.
Wien Energie (operator)
- Stable source ID
src-45c9df7357997a99- Publisher
- Name not classified · wienenergie.at
- Type / language
- web-page · language not classified
- Published
- Not recorded
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-22
- Dossier created
- 2026-08-23
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
The operator's live product page: participant count and the terms on which the vouchers are redeemed against a Wien Energie electricity bill. It states neither the number of plants nor the package price.
- Claims linked
Wien Energie press release (operator, 2024-04-14)
- Stable source ID
src-8af9e56f489cb559- Publisher
- Name not classified · wienenergie.at
- Type / language
- web-page · language not classified
- Published
- 2024-04-14
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-07-22
- Dossier created
- 2026-08-23
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
The operator's announcement of the thirtieth citizens' solar plant, and the sentence-level source for the €250 package, the five-package limit, the guaranteed €52.80 a year across a five-year term, the 12,200 participants and the €40 million invested.
Known limits of this passport
- Publisher names and source languages have not yet been classified; domains are recorded without guessing.
- Existing source notes are descriptive locators, not page- or paragraph-exact citations.
- A missing archive, publication date or content hash is shown as null rather than inferred.
- The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.
Continue exploring
Compare this project
Who gets the money out of a rooftop
Rooftop solar is the one energy asset a resident can own, and these four cities answer very differently who is allowed to own it and who collects. The awkward finding is common to all of them: the schemes reach the roofs that were already there.
| Project | Since | Status | Outcome | Evidence | Run by | Cost | Who owns the panel, who gets paid |
|---|---|---|---|---|---|---|---|
| Cash for Power: Cape Town Buys Back Rooftop SolarCape Town, 🇿🇦 | 2023 | Live | Ongoing | Official | Utility or public operator | R55M paid to sellers to Jan 2025 (City figure); bidirectional meter R6,043 incl VAT borne by the customer | The resident owns it and can take cash, not just bill credit — but only with a roof, the capital for an array and a City account, so the money moves upward. |
| Vienna's Citizens' Solar & Wind Power PlantsVienna, 🇦🇹 | 2012 | Live | Ongoing | Official | Utility or public operator | €40m+ cumulative citizen investment since 2012 | The utility owns and runs the plant; residents buy fixed shares of it and take a guaranteed return as vouchers against their own bill. |
| Suvilahti Solar Power Plant (Panel Rental)Helsinki, 🇫🇮 | 2015 | Live | Succeeded | Official | Utility or public operator | not public | The utility owns the panels and rents them by the month to people with no roof of their own, crediting each panel's output to that tenant. |
| Buiksloterham Positive Energy District (ATELIER)Amsterdam, 🇳🇱 | 2019 | Completed | Scaled back | Independent | City government | ≈€19.6M (EU Horizon 2020 contribution) | Nobody sold anything to anyone: the grid operator could supply a fraction of the connection capacity requested, and peer-to-peer trading became flexibility management. |
Explore the wider context
📎 Cite this project
1001 Smart Cities (2026). “Vienna's Citizens' Solar & Wind Power Plants” — Vienna, Austria. The Smart City Atlas. https://1001smartcities.org/projects/vienna-citizen-energy/ (last verified 2026-07-22). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.