Permanent project revision
Revision 2026-08-27-source-dating · effective 2026-07-23
Current revision. This is the snapshot used by the live entity page.
Every source on this entry now carries a date key: a publication date where the publisher states one, otherwise an explicit null with the reason on the record.
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replace /snapshot/projectFingerprint — Updated projectFingerprint to the current sourced project record.replace /snapshot/sources — Updated sources to the current sourced project record.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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Copenhagen replaced about 20,000 streetlights and 8,000 poles — roughly half the city's stock — with LED lanterns under a DKK 266.3m Citelum contract approved in November 2013 and carried out from 2014
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descriptive
The contract obliged the consortium to guarantee an energy saving, with a penalty clause behind it
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A wireless network lets the city remotely dim, schedule and monitor each lamp, brightening for approaching cyclists
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the renewal replaced the switch cabinets outright, which the city called a precondition for controlling the lighting intelligently at all
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The city's technical department said in 2017 that street lighting was using more than 55 per cent less energy than in 2010, with the new lanterns 70-80 per cent more efficient than the ones they replaced, and put the annual electricity saving from the renewal at DKK 12.8m
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the city's own papers attribute the saving since 2010 to two programmes — the Citelum contract and a separate DKK 55m appropriation from 2011
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the 57 per cent that circulates with this project is the reduction the contract obliged the consortium to guarantee by 2016, not an independently measured result
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The 57 per cent in the 2013 committee papers is what the winning consortium was contractually required to guarantee, with a penalty clause behind it
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the more-than-55 per cent the city quoted in 2017 is what it says it achieved against 2010
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.
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src-0f194721f8285b36Minutes of the Technical and Environmental Committee meeting of 4 November 2013 approving the Citelum contract: about 20,000 lanterns and 8,000 poles over 2014-15, a DKK 266.3m budget across 2013-15, a guaranteed energy saving of about 57 per cent by 2016 with a penalty clause, and an explicit note that the total saving since 2010 comes from two sources — this contract and a separate DKK 55m appropriation made in April 2011.
src-790dd993c0151b4bIndependent Danish engineering trade press: tender details, penalty clause, cycling-responsive dimming.
src-def54613181b0eb3Independent Danish energy trade press: contract scope, cost, ~50% energy/CO2 reduction.
src-4ffc629e696d1ff1Operator's own case study: central management platform, remote dimming/scheduling, CO2/energy savings (vendor-reported). No publication date is recorded: the page did not answer when this entry was checked.
src-890a4f8abb3843e9LED lantern manufacturer case study: light-point counts, communication-network rollout timeline. The page states no publication date.
src-8a7e277ad6f17ee2Danish engineering trade press after completion, quoting the city's centre head Steffen Rasmussen: street lighting uses more than 55 per cent less energy than in 2010, the new lanterns are 70-80 per cent more efficient than their predecessors, and the 19,000-lantern renewal is estimated to save DKK 12.8m a year in electricity. The figures are the city's own, carried by an independent outlet.