Is this worth the effort?
In terms of electricity cost?
I wouldn't do it myself.
If you want to know whether it's going to save money, you want to see how much power it uses
you can use a wattmeter, or look up the maximum amount on the device ratings to get an upper end. Look up how much you're paying per kWh in electricity. Price the hardware. Put a price on your labor. Then you can get an estimate.
My guess, without having any of those numbers, is that it probably isn't.