It is an issue when your parked off grid and run off battery, 90w is significant. My 5G router with wifi 6 pulls under 10w direct 12v DC. It looks like the flat dish is actually 110-150w and requires AC power, so not great for off grid usage as inverter losses will add another 10-20w on top.
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There's not really an issue with power on moving vehicles except sail boats.
It is an issue when your parked off grid and run off battery, 90w is significant. My 5G router with wifi 6 pulls under 10w direct 12v DC. It looks like the flat dish is actually 110-150w and requires AC power, so not great for off grid usage as inverter losses will add another 10-20w on top.