International 
. In the previous Info-Bulletin we published a study conducted by the Natural Resources Defense Council (NRDC) which pointed out that DVRs were among the most energy-consuming devices in the United States.
First of all, although the studio focused on video recorders for television, we decided to publish them in SECURITY SALES because of the technological similarities with DVRs in our industry. However, due to the reactions generated by the news, we inquired with Alexander Gutiérrez, GVI's sales manager for the Andean region, and an expert in this type of solutions, to give us his point of view.
According to the report, in the United States the use of all TV-DRVs available for television consume, while they are on about 500MW, however, according to Alexander, in the case of DVRs for security this expense is lower: "Our DVRs consume a maximum of 60 watts (watts) and the average is 40 watts; it depends on the number and class of hard drives that the computer has installed."
Now, as for the mechanisms of a DVR that need more energy for its performance, Gutiérrez considers that "it is definitely the hard drives and the DVD burner (at the time of using it), for those DVRs that include it. But the hard drives used by most CCTV manufacturers are video-optimized models, consume less power, and have a shorter write time than standard drives."
Other points to which the analysis referred had to do with the use of low energy consumption certifications for these devices. In this regard, the guest commented that "the tendency is for teams to be more efficient. Our RAZberi NVR is a solution for energy-efficient installations that aspire to LEED certification, as it integrates NVRs with storage and PoE Switch, eliminating the inefficiencies that would have the elements separately (Server, Switches and power supplies of the cameras)".
Finally, regarding the relevance of this type of studies, Alexander considers that "it is important, because there are elements that in safety can be reviewed to have better energy efficiency. In the industry there are NVRs with very efficient designs from the point of view of energy consumption."
