GRANKIA is a leading manufacturer and exporter of inverter (including off grid solar inverter, hybrid solar inverter and power inverter), solar panels, solar charge controller, and battery storage. GRANKIA has 3 own factories which located in Foshan, China. Our advanced and professional technology, complete production lines, experienced staff and strict corporate system ensure our products quality. We pride ourselves on quality products, service and pricing, and believe that the three aspects are equally important to ensure the long-term success of overseas purchasing program.
GRANKIA factory tour is free to observe solar energy products being manufactured and processes at work, and offers daily.

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We are nearby Guangzhou Baiyun International Airport.
Open: 8:00 a.m. – 5:30 p.m.
Factory Tour: 9:00 a.m. – 4:00 p.m.
Closed on New Year’s Day, Ching Ming Festival, Dragon Boat Festival, International Labor Day, Chinese National Day and Spring Festival(Chinese New Year)
Please note: We operate on reduced hours on festival. Call ahead for modified hours. Hours are subject to change.
Week of day: from Monday to Saturday.
Welcome to our GRANKIA Factory Tour! This exclusive tour provides an in-depth look into our state-of-the-art production facilities, showcasing multiple workshops specializing in different stages of manufacturing.
What We Offer:
Our solar inverter production line is designed to ensure high efficiency, precision, and reliability in the manufacturing of advanced solar inverters. Equipped with cutting-edge technology and strict quality control measures, our production process meets international standards, delivering high-performance inverters for residential, commercial, and industrial applications.
Our lithium-ion battery pack production line can deliver high-performance, reliable, and safe energy storage solutions for a wide range of applications, including solar energy storage, electric vehicles (EVs), industrial backup power, and portable energy systems. Equipped with state-of-the-art automation and rigorous quality control measures, our production line ensures efficient manufacturing and superior battery performance.
GRANKIA storage battery workshop is a specialized manufacturing system designed to produce lead acid battery, gel battery and deep cycle battery, which are primarily used for applications requiring sustained power delivery, such as renewable energy storage, electric vehicles, marine equipment, and backup power systems.