Huaguang Environmental Energy (Xi'an) Design and Research Institute Co., Ltd. (formerly Xi'an Datang Electric Power Design and Research Institute Co., Ltd.), a subsidiary of Huaguang Power Station, was established in 1991, abbreviated as Huaguang Environmental Energy Institute. It has a Class B design qualification certificate in the power industry, and is qualified for the design and general contracting services of power transmission and transformation projects with a single unit capacity of 135MW and below, as well as voltage levels of 220KV and below; Proficient in the design, technical consulting, sales of complete sets of power equipment, and engineering general contracting of thermal power plant engineering, cogeneration engineering, urban heating network engineering, and power transmission and transformation engineering within the scope of design qualifications; And can undertake technical development, system design, consulting services, etc. for flue gas purification treatment and environmental protection engineering.

Received the title of Excellent Survey and Design Unit in August 2005.

In 2018 and 2019, it was awarded the title of Top 100 Enterprises in Xi'an for two consecutive years.