any ideas how much it will increase once i use a 42" rated at 375 watts?
btw 240 watts lang yung dati kong 32" lg plasma ..
Based on guidelines set by Japanese Energy Conservation law (4.5 hours per day usage, 19.5 hours on stand-by), approximately this much
Your 32 plasma: 240 x 4.5 x 0.4 x 365 = 157.68 KWH per year = 13.14 KWH per month
42 inch plasma (non full HD type) = 375 x 4.5 x 0.4 x 365 = 246.38 KHW per year = 20.53 KWH per month
So how much is additional 7.39 KWH per month in terms of electric bill?
Where did I get the multiplier 0.4?
I tabulated every single "KWH per year" rating published by Japanese TV makers for every model they offer based on the above usage condition (this is required by Japanese Energy Conservation Law) and then compared that value to the maximum power draw of the TV assuming they would constantly use maximum rated power. I noticed that the average multiplier for plasma is approx. 0.4
To simplify the calculation, I assumed the actual power consumed during stand-by (19.5 hours) to be negligible because many recent models of both Plasma and LCD have barely 0.1W power draw under that mode. Sa Philippines, where some probably unplug their TVs when not in use, the effect is the same.
Oh, guess what the approximate multiplier for LCD is? Well I have to check my figures at home but I remember it's just a tad over 0.5 - quite far from 100% claimed by those who think LCD draws its max power constantly at all times during operation.