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Bunting Hall Energy Audit

April 2008

For smaller printers, limiting use to two hours a day would significantly reduce their energy load. Larger printers and copiers used by multiple individuals could be turned off nightly, reducing excess heat and eliminating standby electric draw.

All Printer Savings

1 year: $337.01
5 years: $1685.05

Individual Office Printers

By limiting the powered-on time to two hours each day, offices would stay cooler and power would be reduced significantly. Combined, these smaller printers use over 2 kWh each day.

Single-user Printer Savings

1 year: $67.45
5 years: $337.26

Standby loss: 3 watts

Standby loss: 6 watts

Standby loss: 17 watts

Standby loss: 8 watts

Standby loss: 7 watts

Standby loss: 18 watts

Standby loss: 1 watt

Standby loss: 10 watts

Community Printers

Turning the printers off at night would reduce power usage by roughly 52 kWh each week.

Multiple-user Printer Savings

1 year: $269.56
5 years: $1347.80

The HP Color Laserjet 5550 can draw over 1 kilowatt during startup with a substantial standby loss of 170 watts.

Standby loss: 37 watts

The Canon Color Copier uses 264 watts when warming up, 600-985 watts while in use, and 183 watts during rest periods. The copier can be set to energy saver mode (44 watts) when in disuse.

Standby loss: 3 watts

Standby loss: 15 watts

Standby loss: 50 watts

Standby loss: 3 watts

Standby loss: 22 watts

Limiting its use to eight hours a day, the HP Laserjet 4050 TN could reduce current energy use by 2 kWh per week by removing the standby loss of 24 watts.

Standby loss: 37 watts

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