Solar Spices / Chilly Dryer

Solar Spices / Chilly Dryer

Spice powder making has emerged as a lucrative business in the last two decades due to emerging demand from the vast Indian population living in overseas as well as change in life style of middle class families in the country. These factories use fossil fuels like firewood, electrical, or petroleum products for drying the spices. Drying is very critical for grinding them into a nice powder.

Why Solar

By using solar pre heated air at 60 to 95 Deg C (depending upon the solar radiation) the firewood consumption for the Drier could be reduced.
The solar heating unit saves furnace oil around 50 to 60%.
The system doesn’t need big maintance except cleaning of glass which takes two hours of two workers for every week.
The switching over from solar heating to conventional heating during rainy day is very easy. In nutshell the working of the system is satisfactory and it saves fuel consumption.

What is the PEN solution

Two leading spices manufacturers in South India have adopted solar drying system for their spices drying (Chilies and seed spices) and the quality of grinded spices is good. Solar air heating projects in a spices factory near Theni and another one near Erode are successful in saving 65% to 75% of conventional fuel. The factory near Theni has adapted the solar heating projects twice in the past 14 years. Solar heating could also be employed for spices like pepper, chilies and others to bring down the moisture content to a level acceptable to the foreign buyers.


M/s.Eastern Condiments (P) Ltd.,
Theni M/s.Sakthi Masala (P) Ltd., Erode


Latest Achievement :-
A 720m2 CPC successfully installed at Hatsun Agro Pvt Ltd, Salem
A 550 kW grid type powered to Santosa Feed Plant factory near Palani owned by (HATSUN AGRO)
A 270m2 solar air heater partially funded by UNIDO as per for reduced coal consumption in a leather auto sprayer in Kanpur.
Roof mounted 10000 liters solar hot water system for leather tannery partially supported UNIDO in Kanpur has been successfully installed.
Graphite Processing.
TAMIN invites PEN for innovation in graphite processing.
Dr.C. Palaniappan has been requested by MED-BIS to frame solar dryer standards.
Solar Dryer
2 numbers of 150 kg solar dryer was sent to Nairobi, Kenya
Solar Heating
North East Tea Gardens are keen to adopt PEN’s energy saving methodology through solar heating.
Solar Air Heater
Solar air heater for tea at Golden Hill Tea Estate near Coonoor, Niligiris installed in 1992 still works ( 21 years) creating a new record in the Renewable energy sector.
Solar Power Project for TMB Bank
Tamilnad Mercantile Bank, basing upon the successful working of solar power project Pandaravilai Branch has entrusted 3 new branches namely Usilampatti, Odaipatti and MM Kovilur (Dindugal).