My office is literally my home away from home-- my domicile for eight hours of every working day. So in figuring out my overall energy consumption, my workspace is likely to figure pretty prominently. I took a recent raid of my office space as a cue to examine my energy use at work to see where I can be more efficient.
I'm starting, of course, with lighting. A full suite of eight fluorescent bulbs burn over my head everyday to illuminate the sad, 100-square-foot hovel I call my office. Yesterday, I popped the not-so-fancy light fixture that hides them to get a better view at the bulbs. Turns out none of them had any indication of how much wattage they consume. They sure don't make this easy.
Each bulb, however, had a specific brand and model number: Philips F32T8/TL741 Alto Collection. A quick Google search brought back some information that blew my mind32 watts
÷ 1,000 = .256 kWh. And assuming these bulbs burn for approximately 7.5 hours every day (hey, a guy needs to get some lunch!), the total energy used per day is 1.92 kWh. Finally, let's multiply that number by five days in each work week: 1.92kWh/day x 5 days = 9.6 kWh/work week.
Okay, we're almost there. Let's also assume that during the course of the year-- between vacation, holidays, sick days, etc.-- that I do not work for 5 weeks. That would leave 47 weeks of work, right? So 9.6 kWh/work week x 47 work weeks = 451 kWh/yr. WOW!
To put that number in perspective, that's about half the average monthly energy use of a typical American household, according to the US Department of Energy.
Let's be honest: I'm not really that bright-- does my office have to be?