Impact

Embodied Carbon

Embodied carbon of the hardware a site runs on.

published, from lifecycle studies and not from any measurement here. Boavizta's platform_compute_medium archetype carries 900 kg CO2e embedded, range 461.8 to 2,089.0 [17]. At a four-year life that is 225 kg CO2e per server-year, or 0.23 kg per site-year at 1,000 sites per host. The per-site figure is the server figure shared out across the sites on one host:

C_{\text{site}} = \frac{M}{L \cdot N}

M is the embodied CO2e of one server, L is its life in years and N is the number of sites on it. Substituting 900 kg, four years and 1,000 sites gives 0.23 kg after rounding.

Embodied carbon is not automatically avoided. A migrated fleet retires no hardware unless the previous operator retires some. The figure describes hardware a sufficiently efficient architecture makes unnecessary, not emissions that stop when a site moves.