power consumption of total components

My Benchmark AHB2 consumes 0.5W at standby, 20W at idle and varying amount during use.  Music power is usually very low, but it depends on type of music.  The highest would be for playing sinewaves.  After that probably organ or heavy classical pieces.  On the other end would be a Jazz trio.  Music power is very low because half of the peak loudness is 10% of peak power and in addition music has gaps.  Class A is different story consuming huge amount of power all the time.

Ignoring miniscule standby or idle (because something always plays - music or TV) a listen for about 6 hrs a day = 180 hrs a month.  They charge me $0.14 per kWh.  Assuming 50W power draw it will make 
0.05kW x 180hrs x $0.14 = $1.25 a month.  If you listen loud it will be likely twice that.  With your system in my room it would be  about $12 a month for 5 hour a day listening, not counting idle and standby for the rest of the day.  When calculating energy cost remember that they charge for energy and delivery, in my case $0.07 + $0.07 = $0.14 per kWh.

Your new house is better insulated, and undoubtedly more energy efficient in every way. Don’t blame your sound system, in the grand scheme of things, most use very little power. The two big draws are heating/cooling, and the water heater. The way to lessen this is better insulation, and more efficient appliances.

Insulate the best you can, biggest improvement you will see. Great windows...

Having digs under ground and in the Attic. Both are wonderful, Dead of summer or dead of winter.. HO railroad is in the attic. The basement is the basement.. 55-60 degrees all the time.

85, to 125. per month. I’m looking at a solar trailer too. I like the idea better. Easier to maintain on the ground..

Regards

I don't know within 10% what my electric bill is in any given month. The only time it mattered was when I was mining bitcoin. Because then it was buying bitcoin with watts. My system is pleasure, not business. Sometimes wonder if audiophiles know the difference.

It sounds like you’re on a tight monthly budget. One suggestion would be to sell whatever amp/amps you have, and purchase a new/used highly efficient class D.  Another suggestion might be to limit your listening to a couple hours a week,and never leave any equipment on when not in use.