Permanent project revision
Revision 2026-08-27-claims-and-sources · effective 2026-08-27
Current revision. This is the snapshot used by the live entity page.
Created the first structured Evidence Passport with 7 claims and 4 source dossiers.
sha256:4507dec69e6ddfbc2895aa742064acd42a3a355facadbe1d6266eacfc30b9a18
add /evidencePassport — Added claim-level evidence mapping and source dossiers.add /revisionHistory — Established a permanent, hash-addressed baseline revision.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.
clm-3204019730825799
descriptive
sensors for soil moisture, salinity, temperature, wind and weather, plus the municipal rain-gauge network, let operators work the electrovalves from a distance, match watering to each plant type and stop the system when it rains
clm-4f05f0910589e671
quantitative
It opened at three green spaces — Parc del Centre del Poblenou, Parc de la Ciutadella and Parc Central de Nou Barris — covering 13 of the 293 hectares the council considered telemanageable, with a stated first-phase goal of 79 hectares
clm-5591a1675f3e4a74
quantitative
At launch the council projected a roughly 25% cut in irrigation water use, about €425,000 a year off a ≈€1.7M annual bill
clm-b730e734334af483
quantitative
More than 2,000 sensors covering water, air quality, rainfall and the irrigation network feed the city's open-source Sentilo platform
clm-86030c0bdccb3e3b
quantitative
A 2025 city publication reports irrigation water savings of around 30%, a figure it attributes to Barcelona's own smart city strategy
clm-efa6afa2f4f6fccb
quantitative
The council's projection at launch was a roughly 25% cut, about €425,000 a year off a ≈€1.7M annual bill
clm-4845c4ae6daa8742
quantitative
The 25% was a projection the deputy mayor for Urban Habitat announced on the day the system was switched on at three parks
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sha256:4507dec69e6ddfbc2895aa742064acd42a3a355facadbe1d6266eacfc30b9a18
src-3a8946406b4c1d91Official launch. Three green spaces (Parc del Centre del Poblenou already running, Parc de la Ciutadella and Parc Central de Nou Barris from April), 13 of 293 telemanageable hectares, a stated first-phase goal of 79 hectares, sensors for weather, humidity, salinity, temperature, wind and soil state, a connection to the municipal rain-gauge network, a projected ~25% cut and ~€425,000 a year off a ~€1.7M bill, and an investment of €298,000. The release does not mention Sentilo.
src-dccc0d3621b0d39fIndependent same-day corroboration of the 25% projection and the ~€425,000 saving against a €1.7M annual bill.
src-02dae1e9761be810Current status, and the source of the ~30% figure — which the article itself attributes to the 'Barcelona Smart City Strategy', not to an independent measurement. It does not give a count of telemanaged green spaces and does not name individual parks. Also the source for the Sentilo connection: more than 2,000 sensors covering water, environmental quality, rainfall and the irrigation network.
src-249c9d39cf055a62Barcelona's city broadcaster on launch day. Carries the deputy mayor for Urban Habitat, Antoni Vives, on the projection in his own words — 'serem capaços d'estalviar un 25% de la factura de l'aigua de la ciutat' — and the €298,000 investment figure.