SUNBEST is a premier solar company engaged in the design, manufacture and installation of solar air heater, solar water heater and Solar Photovoltaic (SPV) electrical appliances. SUNBEST has many success stories in the usage of solar poweracross a wide spectrum – Industrial applications, Agro based products, Remote independent driers, Commercial and domestic applications.

The technology pioneered by SUNBEST provides low-cost, non-fossil fuel based methodologies for processing fruits, fish, vegetables, spices and reduction in fossil fuel through preheating for many industrial products. A company dedicated to producing quality work & exemplary customers services backed by years of real world experience. We are a well-established company located in Theni, Tamilnadu.

The Promoter

SUNBEST is promoted by Dr. C. Palaniappan, a pioneer in solar energy with 35+ years of experience in solar energy research and development of innovative applications. His doctoral thesis on “Solar Agricultural Drying” at Milan University fetched him the Young Scientist Awardin 1986. He has served in various institutions including as Reader in Solar Energy at School of Energy Sciences, Madurai Kamaraj University, India.

Responsible for launching the PLANTERS ENERGY NETWORK (PEN) a registered NGO in 1989, to promote renewable energy applications and energy conservation in plantation industry and other industries, Dr. C. Palaniappan has been in the forefront of advocating renewable energy across India.

Our Vision

I. To develop world class projects in harnessing solar energy for the benefit of common man

II. Widespread use of solar heating (both air and water) in Indian industries and agro processing in order to herald the dawn of solar age in the country

III. To provide healthy food and employment to the rural mass and to reduce wastage in food processing, especially in fruits, vegetables and fish by adopting solar assisted dehydration and value addition

IV. Customer Delight – To provide a best-in-class service and after sales follow up to all customers

V. To export the best practices in renewable energy to other developing countries.


SUNBEST is the first solar air heating company in India to become MNRE ‘s Channel Partner with a CARE rating of high performance (2B).

Dr. C Palaniappan acknowledged as a world thought leader on Industrial Solar Thermal Solutions by International Energy Agency, Paris (IEA) and invited to be on its Task Force.

SUNBEST’s pioneering Solar Air Heating solutions are patented.

Recognized By

Ministry of New & Renewable Energy

Tamilnadu Energy Development Agency
National Research
Development Corporation