A media company encodes user-uploaded videos. Live event replays (15% of volume) must be available within 2 hours. Archival uploads (85% of volume) have no deadline. The company operates in Region A (coal-heavy, 550 gCO₂e/kWh, flat profile) and can access Region B (mixed grid, 100 to 350 gCO₂e/kWh). Each video is 500 megabytes and takes 4 minutes to transfer between regions. For the archival uploads, which strategy would produce larger carbon savings?

Question

Accepted Answer

Spatial shifting to Region B, because Region A’s flat intensity profile means temporal shifting offers almost no benefit, while Region B has substantially lower intensity

Answer

Temporal shifting within Region B after first transferring all videos there permanently

Answer

Temporal shifting within Region A, because avoiding data transfer overhead is always preferable

Answer

Neither strategy, because video encoding is an inflexible workload that cannot be shifted

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A media company encodes user-uploaded videos. Live event replays (15% of volume)...

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