| System | YEAR | AE (kWh/Year) | ET (Wh/transaction) | RE (relative efficiency) |
| Digipoort eMail service | 2012 | 153.509 | 1,27 | 34% |
| DigiD machtigen Autorisation service | 2012 | 12.800 | 38 | 11% |
| Digilevering Transport service | 2013 | 4.147 | 1,14 | 55% |
| eMail spam filter | 2013 | 38.397 | 0,044 | 24% |
| WABO-law implementation | 2013 | 4.257 | 128 | 10% |
| TNO IJkdijk | 2013 | 10.071 | 0,28 | NA |
| Physical access control backend | 2013 | 98.288 | 51,95 | 12% |
| Governmental meeting planning service | 2014 | 4.979 | 27,3 | 12% |
In progress
| System | YEAR | AE (kWh/Year) | ET (Wh/transaction) | RE (relative efficiency) |
| Governmental authentication system | 2015 - 2016 | |||
| ECP group | 2016 |
Validated by Software Improvement Group
Why do it ?
Great strides have been made to increase the energy efficiency of hardware, data center facilities, and network infrastructure. These Green IT initiatives aim to reduce energy-loss in the supply chain from energy grid to computing devices. However, the demand for computation comes from software applications that perform business services. Therefore, to measure and improve efficiency for entire systems, energy-efficiency indicators are needed at the level of services.
What is it?
The Software Energy Footprint Index (SEFindex) is a standardised method to determine an energy profile of e-services. It consists of a set 3 indicators for energy-efficiency. The method was initially performed on two e-government services of the Dutch national government. The initiative won the ICT-Milieu Award 2013.
How to use it?
The SEFindex serves as a starting point for energy- optimization initiatives, supported by appropriate contractual agreements between service owners and suppliers. In this video the idea behind the index is explained by Joost Visser.
Related links:
10 best practices for a green system in Dutch
Logius Annual report
ECP invitation
ICT-Milieu Award 2013
Video: introduction of SEFindex
Partners:
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