San Jose UPS Power Supply

UPS Power Supply for San Jose, Santa Cruz & the San Francisco Bay Area

Nite And Day Power was founded over 30 years ago to service the need for reliable emergency power services in the Bay area and Northern California. We sell, install, maintain, and service Uninterruptible Power Systems (UPS) and emergency back-up power generators that support critical datacom/telecom installations and industrial process control equipment. By working closely with the leaders in the industry (i.e. Eaton/Powerware, APC, Toshiba, GE, Onan, Kohler), we stay abreast of the latest technologies used in the UPS and generator industries. We offer a 24-hour UPS monitoring that will alert our central desk electronically (direct from the UPS) with alarms, outages, environmental conditions, etc, enabling a response time measured in minutes, not hours (1-800-540-POWER).


The goal of Nite And Day Power is to provide outstanding local emergency back up power services utilizing existing and future technologies in energy storage and power generation.

Our Service Areas include:  Fremont, Saratoga, Santa Clara, San Jose, Cupertino, Campbell, Los Gatos, Mountain View, Los Altos, Milpitas, Palo Alto, Stanford, Menlo Park, Atherton, Redwood City, San Carlos, San Mateo, Belmont, Burlingame, San Francisco, Oakland, Berkeley, Pleasanton, Millbrae, Union City, Newark, Hayward, Morgan Hill, Scotts Valley, Santa Cruz