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    Microgrids and the New Economics of Powering Data Centers

    Francesc Queralt
    December 1, 2025
    2
    Microgrids and the New Economics of Powering Data Centers

    Article originally published on LinkedIn

    View original article on LinkedIn

    What is a Microgrid?

    A microgrid is a localized energy system that can operate connected to the main grid or independently. It integrates distributed generation (solar, wind, gas turbines), storage systems (BESS), and demand-response tools.

    The Cost Landscape: Industrial Electricity in Spain

    For electro-intensive consumers in Spain, the effective cost is approximately €59.37/MWh after compensations and subsidies.

    LCOE of Microgrids

    Assuming a 20MW data center microgrid: weighted average LCOE ~€58-60/MWh, putting microgrids at parity with Spain's electro-intensive tariff.

    Why This Matters for Data Centers

    1. Cost predictability: Lock in LCOE for 15-20 years
    2. Resilience: Independence from grid congestion
    3. Green positioning: Reduce Scope 2 emissions
    4. Regional advantage: Additional layer of cost optimization
    #Microgrids#Energy#Data Centers#Spain#Sustainability

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