The project SOWA modernised the lighting along the Piecewska street (Gdansk-Pomerania)

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The project SOWA Piecewska consisted of refurbishing the public lighting along the street Piecewska in Gdansk (Illuminated area: 19,130 m²). Due to new investments in this district of the city and the installation of a new tram line, an upgrade of the public lighting system was needed.  The project included the replacement of the sodium lamps with LEDs and the modernisation of the infrastructure.The City of Gdańsk obtained a subsidy for this project and the Regional Fund for Environmental Protection covered 45% of the investment.


The lighting along the Piecewska street was modernised to energy efficient LED technology. Forty four (44) lighting points, with a previous capacity of 102 W per luminaire, were refurbished. Safety has been improved and energy savings have reached 47%.


This case study was developed in the context of the EU-Project Streetlight-EPC which is supported by the Intelligent Energy Europe Programme.

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Municipality of Gdańsk 80-803 Gdansk, Nowe Ogrody 8/12 E-mail:

Source of funding

Funding description

Investment costs: 11,102 € (total investment) Financial support: NFOS (National Fund for Environmental Protection) Subsidies:4,996 € (WFOS) Monitoring of the environmental effects: for 5 years

Economic effect

Electricity cost savings: 2,288 €/year Reduction electricity consumption:16,000 kWh/year CO2 reduction: 47 %