Sweden – Electricity supply installations – Stationsprogram O/V77

Prequalification – Modernisation of 233 substations in Stockholm A long-term partnership for the future power grid 1. Procurement – Overall Procurement Form: LUFContract Type: ABT 06 (managed contracting)Remuneration: Fixed price with unit prices for variable quantities in earthworks and construction worksOptions: Possibility of continuation in subsequent packages with similar scope (total of 233 stations planned, under 2028-2035)2. Background Stockholm's power grid is facing a comprehensive modernisation. Ellevio is driving a multi-year initiative to enhance operational reliability, create flexibility in the city's power distribution and secure capacity for future energy needs. This initiative includes upgrading 233 substations of type O77 and V77 within Ellevio's concession 48. The switchgear in these facilities is approaching the end of its technical and regulatory lifespan, and many stations have components and building parts from the 1980s. This is an opportunity to be a central player in one of Stockholm's most comprehensive modernisation projects for power infrastructure. 3. Project objectives and drivers The project aims to create a robust, future-proof and easy-to-operate power grid in central and outer parts of Stockholm. Through the modernisation of the stations, Ellevio aims to: Increase operational reliability through replacement of LSP and MSP switchgearEnable redundancy in cable connections and power supply pathsImprove fault detection and restoration times through installation of RTUsImprove the working environment through measures in existing buildingsPrepare for future transformer replacementsSecure power supply in a growing metropolisThis is a strategically important project, both for Ellevio and for the development of Stockholm's power grid. 4. Scope – Package 1 The first package includes the modernisation of 23 stations within City, Söderort and Västerort, with completion in 2027. Work content LSP cable laying ca 9 200 mMSP cable laying ca 920 mReplacement of LSP switchgear in 23 substationsReplacement of 23 MSP switchgearEarthworks ca 1 150 mInstallation of 23 RTUsWork with control equipment and AKBETabling and handling of temporary substations during outagesInternal and external building measures in existing stationsThe work is carried out in a dense urban environment, where planning, work environment and execution capability are central success factors. 5. Why participate? – What the project offers This assignment is attractive to contractors who want: Long-term and stable volume Package 1 is the starting point – a total of 233 stations will be upgraded and further packages are planned. Complex technical challenges Perfect for actors who want to work with high-tech solutions, modern switchgear and advanced operating environments. Urban environment in Stockholm Working in the capital means clear structures, close collaboration and high technical standards. A strategic project in the heart of the energy industry You will be a key partner when Stockholm builds a more modern and resilient power grid. 6. Required contractor profile We are looking for contractors who: have clear experience of turnkey contracting according to ABT 06,have competence within substations for power distribution, LSP/MSP systems and earthworks in existing facilities,can manage several parallel projects in an urban environment,have a strong safety and work environment culture,deliver quality at all levels – from planning to commissioning.