LING GUANG
Member
This comes up every few months in the outdoor and second-TV threads, usually with someone insisting a big panel left running will wreck the power bill, so here is the arithmetic. A 55-inch drawing 100W left on for a full 24 hours, at 18 cents a kilowatt hour, comes to roughly 43 cents a day. About $12.90 a month. That is a takeaway coffee, not a crisis.
The maths is easy enough to do for your own set. Take the wattage, divide by 1000, multiply by hours. A 65-inch rated at 120W running 24 hours is 2.88 kWh, and at 20 cents a unit that is about 58 cents a day. Modern sets land somewhere between 50 and 200 watts depending on size and panel technology, and the rating is in the manual or on the manufacturer page. If you want the real figure rather than the plate rating, a smart plug will show you what it actually pulls, which changes with brightness, with HDR content, and with whatever eco mode you have on.
The thing worth flagging is that the plate rating is close to worst case. Where I would actually look for savings is elsewhere: brightness sitting at maximum from store mode, a games console left idling next to it, an AVR powered up all day for background TV audio. Those add up faster than the panel does.
Has anyone here actually metered their set over a week? I would be curious whether HDR content pushes it far enough above the rating to matter.
The maths is easy enough to do for your own set. Take the wattage, divide by 1000, multiply by hours. A 65-inch rated at 120W running 24 hours is 2.88 kWh, and at 20 cents a unit that is about 58 cents a day. Modern sets land somewhere between 50 and 200 watts depending on size and panel technology, and the rating is in the manual or on the manufacturer page. If you want the real figure rather than the plate rating, a smart plug will show you what it actually pulls, which changes with brightness, with HDR content, and with whatever eco mode you have on.
The thing worth flagging is that the plate rating is close to worst case. Where I would actually look for savings is elsewhere: brightness sitting at maximum from store mode, a games console left idling next to it, an AVR powered up all day for background TV audio. Those add up faster than the panel does.
Has anyone here actually metered their set over a week? I would be curious whether HDR content pushes it far enough above the rating to matter.
