"Kerry Wan/ZDNET A modern TV uses significantly less energy than one from a decade ago - which makes sense, given how much more power-efficient today's display panels have become. According to Perch Energy, the average power consumption of an old TV runs around $54 per year in energy costs. Because LED-backlit TVs and OLEDs consume less power than traditional LCD screens, newer models cost about $32 annually."
"Your TV's USB port is criminally underrated: 5 features you're not using enough Ratings range from A to G, with an A rating being the highest and most energy-efficient. However, it is rare to find a TV with an A rating. For a smart TV, a rating of D or E is considered highly efficient. New TVs certified by ENERGY STAR must have comparable features and be 25% more energy-efficient than competitors"
Modern LED-backlit and OLED televisions consume substantially less power than older LCD sets, lowering average annual energy costs from roughly $54 to about $32. Larger screens require more power, but adjusting on-device settings can reduce consumption and electricity bills. EnergyGuide labels and ENERGY STAR ratings provide standard metrics for comparing TV efficiency; ratings span A to G, with D or E considered efficient for smart TVs. ENERGY STAR-certified models are required to be approximately 25% more energy-efficient than comparable models. Simple changes like lowering brightness and other settings can produce meaningful savings over time.
Read at ZDNET
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