Power One Engineering Ltd (Power One) is a private engineering firm headquartered in Gulshan, Dhaka. Established around a decade ago, its management includes seasoned electrical engineers (unverified). The company specializes in designing, building, and maintaining power systems. Its core competencies cover medium- and high-voltage substation projects, transformer and switchgear services, and complete power distribution networks. In addition, Power One handles backup power systems — including diesel generator sets and UPS/battery installations — as well as renewable energy projects like solar PV systems. It also provides electromechanical solutions such as lightning protection systems and electrical earthing. On the automation side, the firm integrates industrial control systems (PLCs, HMIs), variable-frequency drives (VFDs), and power quality solutions (power factor correction) to optimize facility operations (unverified).

Serving industries, commercial buildings, and utility clients across Bangladesh, Power One Engineering undertakes both new construction and retrofit/upgrade projects. Typical clients include manufacturing plants, residential or commercial complexes, telecom operators, and government utilities. The company follows engineering best practices for safety and compliance (unverified). It sources equipment from reputable manufacturers and employs trained technicians for installation and testing. For example, its engineers have performed medium-voltage cable terminations, relay protection setup, and commissioning tests in electrical substations.

Power One also offers maintenance and testing services. This includes preventive maintenance of generators and transformers, battery testing, and periodic inspections of substation equipment. The firm’s project management ensures that installations meet quality standards and are delivered on time (unverified). With a focus on customer support, it provides after-sales service and warranty support for the systems it installs.