EXTEL Energy established in 2018 with a clear business vision, by utilizing the engineering skills and field experiences of team members, provides innovative solutions to customers in the downstream PV Power Plant market. Our value-added solutions are grouped in 5 major technical segments – PV power plant inspection services, Dust Analysis System (DAS2.0), PV module Warranty inspection Service (WiS), PV Analyzer Platform, and PV Module Factory Audit & Pre-shipment Inspection (PSI).

Our clients range from PV assets owners, project developers, EPC companies, insurance companies, and international consulting firms located across Taiwan, China, Japan, and South East Asia. In 2022, ExTEL Energy has become a member of Kiwa Group to strengthen global solar and renewable energy services.

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In 2024, ExTEL Energy officially changed name to Kiwa ExTEL and become part of Kiwa Group's renewable energy, integrated and under one brand alongside with Kiwa PVEL and Kiwa PI Berlin.