The United Nations Office at Nairobi (UNON) invites qualified interested firms to submit their Expression of Interest (EOI) to participate in the upcoming competitive bidding exercise for the provision of specialized maintenance and servicing of UPS units supporting server rooms & office blocks at the UN Complex, Gigiri, Nairobi, Kenya. The contract resulting from the intended tender process will have an implementation period of three years, with the possibility of extending for two additional periods of one year each (3+1+1), contingent upon the selected contractor's performance. The scope of work will entail: a) Provision of routine (Quarterly) UPS maintenance: The selected contractor will be required to provide specialized staff and all the tools, uniforms, safety gear, software and test equipment required for the successful implementation of the contract, while UNON will provide the requisite replacement materials, spares and parts required for the routine (quarterly) maintenance/ replacements of the UPS installations. b) Provision of UPS installations materials/ spare parts: The selected contractor may be required to provide maintenance items/ parts that may not be in stock in the UNON stores. c) Provision of adhoc labour: From time to time there may be need for the selected contractor to provide adhoc labour e.g. when there is equipment breakdown requiring technicians to carry out repairs beyond normal working hours, where UPS equipment may require to be decommissioned or re-installed and recommissioned due to internal office renovations or during conferences where there may be need to maintain technicians at various locations to ensure services are reliable. d) Disconnection and re-installation of UPS units as shall be directed by UNON. e) Remote Monitoring of the performance of the UPS units:UNON has installed network management cards in some of the UPS units to help in managing the UPS performance and monitor the UPS. f) Maintenance of the switchgear and associated installations for the UPS units. g) Real time monitoring and, generation and distribution of alerts and alarms from the UPS systems. These shall be via SMS and email to UNON supervision team. h) Supplying, installing and carrying out settings for remote transmission network management cards for each UPS to enable remote monitoring and communications. While carrying out the above-listed services, the selected contractor will be required to provide all consumables, tools, test equipment, safety equipment, applicable software, warning signs, consumables and fully maintain the required tools and equipment at its own cost. Complete details of the requirements will be provided in the tender documents, which will be issued to bidders after this request for Expression of Interest (EOI) is closed.