After trying out a few uninterruptible power supplies from two manufacturers:
I definitely like APC better. Their apcupsd tool is awesome, and its open source. However, I've been trying to figure out how to monitor energy usage, and I can't seem to come up with any info on this. I'd like to see the current wattage or amperage that is getting used.
apcaccess dumps a bunch of info to my screen, but none of it includes what I'm looking for. See here:
APC : 001,035,0947 DATE : Sat Aug 12 08:21:59 EDT 2006 HOSTNAME : localhost RELEASE : 3.12.3 VERSION : 3.12.3 (26 April 2006) debian UPSNAME : localhost CABLE : USB Cable MODEL : Back-UPS ES 500 UPSMODE : Stand Alone STARTTIME: Wed Aug 09 18:15:11 EDT 2006 STATUS : ONLINE LINEV : 119.0 Volts LOADPCT : 37.0 Percent Load Capacity BCHARGE : 100.0 Percent TIMELEFT : 21.8 Minutes MBATTCHG : 5 Percent MINTIMEL : 3 Minutes MAXTIME : 0 Seconds LOTRANS : 088.0 Volts HITRANS : 138.0 Volts ALARMDEL : Always BATTV : 13.5 Volts LASTXFER : Unacceptable line voltage changes NUMXFERS : 1 XONBATT : Fri Aug 11 18:13:21 EDT 2006 TONBATT : 0 seconds CUMONBATT: 7 seconds XOFFBATT : Fri Aug 11 18:13:28 EDT 2006 STATFLAG : 0x07000008 Status Flag MANDATE : 2005-04-12 SERIALNO : JB0516011587 BATTDATE : 2000-00-00 NOMBATTV : 12.0 FIRMWARE : 01.e5.D USB FW:e5 APCMODEL : Back-UPS ES 500 END APC : Sat Aug 12 08:22:37 EDT 2006