LUMI, Europe’s most powerful supercomputer
&gt; LUMI gets all of its electricity from 100 percent renewable hydroelectric power.<p>100% pure greenwashing bullshit at a guess. Power usage has gone up in Finland, and that extra power does not come from hydroelectricity, because all[1] the hydroelectric power is already used domestically. Instead the extra power usually comes from non-renewable sources.<p>I am guessing they signed an agreement with a hydroelectric producer to buy “hydroelectric” electricity, fungibly delivered over the transmission network. Even if they got the electricity delivered directly from hydro, that would leave a network shortfall to be filled by non-renewables.<p>Avoiding aircon is good, and the heat reuse is good since it presumably reduces non-renewable resource use by domestic heating.<p>[1] <a href="https:&#x2F;&#x2F;www.stat.fi&#x2F;til&#x2F;salatuo&#x2F;2020&#x2F;salatuo_2020_2021-11-02_tie_001_en.html" rel="nofollow">https:&#x2F;&#x2F;www.stat.fi&#x2F;til&#x2F;salatuo&#x2F;2020&#x2F;salatuo_2020_2021-11-02...</a>