Why does Ubuntu consume more power than Windows?

Question

linux

I play video at maximum volume in full screen or
browse the Web over WiFi.
Under Windows 7 lasts ~5 hours.
Under Kubuntu 10.10 only ~2 hours.
I have an Acer Aspire 1810TZ. Battery wear is 90%.
Installed:
acpid
acpi-support
pm-utils
upower
Not installed:
laptop-mode-tools
I love Linux, I'm not going to change.
What to do to make it work no less?

Answer 1

Because it's more powerful :)

Answer 2

Because iron manufacturers suppress information about it. Hardware is designed to work under Windows and only Windows driver developers have enough information to fully manage the power of devices.

Answer 3

Roll yourself a bucket from 11.04 bubunts. They seemed to be seriously shamanized there, my netbook jumped from 4 to almost 7 hours.

Answer 4

Try Granola

Answer 5

when I asked a similar question, I found the site lesswatts.org/ look, maybe it will come in handy for you!