Eaton 91PS UPSs provide the lowest Total Cost of Ownership and maximum availability in their power range. Whatever your mission-critical application. Eaton 91PS UPSs offer the power performance. scalability. resiliency and efficiency you need for cost-efficient business continuity.Lowest Total Cost of Ownership (TCO)Eaton 91PS UPSs cost you less to own because they are more efficient. thanks to a number of leading technologies. Eaton’s Energy Saver System (ESS). for example. uninterrupted and clean power supply. This market-leading resiliency is the result of advanced technologies built-in to the Eaton 91PS:- Hot Swap and Hot Scalable- Patented Hot Sync technology allows load sharing without the need for communication between inverters – eliminating a single point of failure- Advanced Battery Management to extend the lifetime of the batteriesFuture-ready.The rapid adoption of the cloud. constant evolution of IT technologies. increased focus on environmental footprint and sophistication of mission-critical applications are demanding even more efficient. resilient. scalable and safe power protection solutions. Eaton 91PS UPSs are uniquely intelligent UPSs.