It is true that the concept of operating without a UPS may not suitable for all use-cases, but it can for some use-cases offer CapEx and OpEx savings.
We at EcoCooling have seen the strategy adopted in some applications such as computing facilities for rendering and research, where there is no system-wide UPS for power failures - only dedicated rack level UPSs for the core network as is the case in the BTDCOne.
The proposal that a DC can operate on a power network without the incoming power being conditioned by a UPS is already demonstrated by UPS products in use on the market. These include a ‘bypass’ function allowing power from the grid to feed directly into an IT facility, with the UPS only conditioning the supply when it is required.
The BTDC project is monitoring the harmonics on the incoming power feed with the aim of establishing that, in certain power networks with high power quality reliability, there is no need to have the option of conditioning the incoming power that these ‘bypass’ UPSs offer.
As part of later work in the project, based upon results from the testing phase, the implications of applying the BTDC concept in other locations with differing circumstances (e.g. power network, weather profile) will be assessed and the resulting report made publicly available.
/M. Käufeler - EcoCooling (BodenTypeDCproject participant)