Business Plug Load
From Green Garage Detroit
- 1 In Residence Business Plug Load Study
- 2 Methodology
- 3 Planning
- 4 Observations
- 5 References
- 6 Questions
- 7 TO DO
In Residence Business Plug Load Study
Goals of Experiment
- Measure power usage of In Residence Business office equipment.
- Educate others on what power requirements are of office equipment and how more efficient equipment may be obtained in the future.
Decisions to be made from Experiment
- How much to charge each in residence business for electricity usage.
- Develop catalog of power requirements for laptops and other office equipment.
- Reduce plug loads over time.
- Record information on owner of equipment and equipment rated power requirements.
- Record information from power adapter nameplate for V DC and amps (or milliamps) or watts.
- Plug equipment in Kill A Watt meter and plug meter into wall.
- Have owner of equipment perform normal work on equipment and record values in workbook for volts, amps, and watts.
- Check power usage in sleep and hibernate modes. Record in workbook.
- Keep monitoring for at least 2 hours and preferably 4 hours with computer under normal usage.
- At end of time period, record kWh and time elapsed before unplugging meter.
- Use kWh and elapsed time to calculate average watts.
- Watts may be used to calculate electrical usage fee for Green Garage Services billing.
- Volts, amps, watts, kWh, time from meter.
- Kill A Watt meter
- Workbook to record data
- Jason Peet
- Tom Brennan
- The Labs
- In Residence Businesses
- Jason Peet
- Need someone to perform testing as businesses arrive at the Green Garage. - Jason
Scheduling & Sequencing
- T. Brennan requested measurement starting on 12/13/2011.
- Need to document refrigerator test before unplugging Kill A Watt meter, if used. - DONE
- Helen may have another Kill A Watt meter we can use instead. - DONE; Meter made available.
- Checking power in various modes of operation.
- Lowest power draw is solid state drive (power vs. capacity of drive - state of industry)
- Energy drawn is highly dependent on if battery or other connected devices are charging or not. Quicker charging battery system uses more energy than slower charging.
- Graphics and cooling fan operating are also big energy draws.
- Size of screen impacts energy used.
- Equipment Log Workbook
- How to Measure
- Saving Energy - Computer Info
- Energy Efficient Plug Loads Resources from New Buildings Institute
- How much power does laptop use
- Top 15 Ways to Extend Your Laptop Battery Life
- Is it more efficient to use your battery and charge it back up or run on power when you can?
- "Earth cost" of the battery?
- Generalizations on what was measured and observed?
- Does operating system impact energy used along with screen size?
- Plan / Do / Study / Act / Repeat
- Finish Blog of lessons learned