Blix Data Center

Data Center

Blix Data Center

Current/OS Partners Involved:

COMSYS

Location

Oslo, Norway

Setup

Context

Comsys has developed a 350V Direct Current installation with rooftop solar at the Blix Solutions datacenter in Oslo, Norway. Blix’s goal was to be more energy efficient and to include renewable energy thanks to a DC power system. PV production is prioritized, and when it’s necessary, rectifiers provide energy from the main grid. Additionally, heat recovery was implemented by Blix to provide heating to the entire building as to the neighborhood as the data center capacity will grow.

Implementation

  • 13kW Photovoltaics in 3 strings
  • 350VDC DC UPS
  • N1XV, rated 1kV with PEX insulation DC cables were used
  • TN-S grounding
  • 2 lead-acid battery storage system
  • The DC UPS ensures protected load distribution via DC MCBs, with all connected racks receiving dual A+B feeds.
  • A breaker allows PV string isolation for maintenance

    • Benefits

    Maximum energy efficiency and no conversion loss

  • PV are directly powering the installation through DC-DC converter with 99% energy efficiency
  • Rectifiers have a 97% energy efficiency
  • Power exchanges with the main grid are smoothed

    • No energy loss at night

  • PV are directly powering the NetTrackers

    • Flexibility and ease of installation

  • Even though DC was new to the electrician team, they were able to implement very easily the TN-S grounded isolation, with minimal training.
  • More modules can be added if more power is required.

    • Quote

    “The installation is one-of-a-kind as it powers part of the data center with direct current, achieving the highest possible efficiency in the electrical chain from the solar panels to the processors in the servers. As data centers continue to be one of the fastest-growing electricity consumers in the world, surpassing even large industries such as aviation or water-treatment, it’s crucial to find sustainable energy solutions. Our solar installation not only provides a potential for significant savings, but also bypasses all the conversions between direct current and alternating current that occur in conventional installations, maximizing the total energy efficiency and also the business case.”

    Stefan Lidstrom, Comsys Partner & Head of DC Solutions

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