Photovoltaic (PV) solar — which has become the lowest-cost form of energy in most major countries, according to the International Energy Agency — is set to play an increasing role in limiting the environmental footprint of edge data centers.
Although there are obvious limitations to using intermittent power as the primary energy source for data centers (discussed below), solar is viable as the primary power source for small edge sites in locations with a high number of sunshine hours. Australian colocation provider Edge Centres, for example, uses on-site solar power and large batteries to power edge data centers with IT loads well over 100 kilowatts (kW).
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