We believe in responsibly marrying our four core values of offering high quality IT solutions and products that not only help you to reduce costs, but also reduce your environmental impact, while most importantly giving something back to the community.
ENERGY STAR is a globally recognised standard regarding energy efficiency, originally set up by the US Department of Energy in 1992 and introduced by the European Union in 2001. As a trusted, global government backed symbol for energy efficiency, it can help to save money and protect the environment through energy-efficient products and practices.
All our planitgreen devices are ENERGY STAR compliant which can cut electricity use by over 60% compared to non rated devices.
Office equipment can enter several stages of lower power consumption when powering down automatically. Power management software allows for progressively shutting or slowing down parts of the device after certain periods of inactivity, reducing power consumption. It also defines how the device is powered after a certain "wake up" event has occurred.
For print devices ENERGY STAR status is determined by calculating its Typical Electricity Consumption or TEC.
The TEC value reflects assumptions about how many hours a day the product is in general use, the pattern of use during those hours, and the default-delay times that the product uses to transition to lower power modes. All electricity measurements are made as accumulated energy over time, and then converted to power by dividing by the length of the time period.
The calculations are based on imaging jobs being in two clusters each day with the unit going to its lowest power mode in between (as during a lunch break). It is assumed that weekends have no usage, and no manual switching-off is done.
The calculation method for printers, MFDs and fax machines use the following three equations:
- Daily Sleep [24 hours – ((Jobs per day / 4 ) + (Final Time × 2))] × Sleep Power
- Daily Energy Daily Job Energy + (2 × Final Energy) + Daily Sleep Energy
- TEC (Daily Energy × 5) + (Sleep Power × 48)
Final Time is the period of time from the last job being initiated to the start of the lowest power mode minus the 15-minute job interval time.
TEC ratings and energy consumption costs are available on all the planitgreen range of hardware devices, to show accurate costs based on the following:
Office of 10 People
65 mono prints per person per day
5 colour prints per person per day (where applicable)
40% of all print jobs duplexed
Energy cost of 9.37pence per kW/h
This gives an insight into how lower energy consumption offers both cost and environmental savings.
It more importantly can be used to highlight that initial savings made by purchasing lower cost devices can often be outweighed by higher toner and energy running costs.
For example, an entry-level inkjet printer without sleep mode could cost almost as much in energy as its purchase price.
Device Purchase Cost Energy kWh/year Energy Cost
Inkjet Colour £50 438.4 £41.00
Duplex Mono Laser SFP £200 101.0 £ 9.40
Duplex Mono Laser MFP £500 121.4 £11.30
Duplex Colour Laser SFP £500 205.5 £19.27
Duplex Mono Copier £1500 160.8 £15.00
Visit the ENERGYSTAR website to find out further details on TEC ratings and how to calculate the energy costs of your print devices.