kWh=kW * h
So kWh = W/1000 * H H= hours of operation over a billing cycle. 20W left on 24x7 is likely in the neighborhood of $1/month. Carl From: Stefan Jafs [mailto:stefan.j...@gmail.com] Sent: Tuesday, October 18, 2011 11:38 AM To: NT System Admin Issues Subject: ( OT ) Convert mA to Watts I'm, trying to figure out how much it cost to run some of our Medical Gas Alarm, current draw is 290 mA at 120 Volts, any ideas? This are my guess after some searches: .290 * 120 = 34.8 VA * 60% (PF) = 20.9 Watts I think that's correct but how do I get to kWh? -- Stefan Jafs ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
