Solar Fruits / Vegtable Dryer

Solar Fruits / Vegtable Dryer

India ranks in second place in the world production of fruits and vegetables but more than 30% to 45% of production are being wasted every year due to non-availability of processing facilities.

Why Solar

Drying is the only preservative method for long storage of fruits/vegerable products but mechanical drying needs fossil fuel and hence economically not viable. Open sun drying renders fruits/vegerable products into unhygienic products including a large wastage. Control drying is needed for long shelf life and solar drying offers low cost hygienic method.

What is the PEN solution

PEN has introduced the technology of roof mounted solar air collector, which is connected to a re-circulation dryer of capacities varying from 250 Kg to 1000 Kg per batch. These units were tested in South India as well as in Ladakh. It also offers attractive employment opportunities for entrepreneur who could use this technology for producing value addition to fruits and vegetables like fruit rubber and dehydrated fruits and vegetables. A factory near kodaikanal processes using solar heat organically grown dehydrated cut fruits, which are very popular in Europe. Shyam Coperative in Ladakh operates a 400 kg capacity solar drying unit gets higher price for its finished products due to higher quality and appearance. Nearly 8 large units for drying fruits and vegetables are in usage in Ladakh region including one in Kargil. PEN also introduced fully solar fan operated dryer for fruits and vegetable of capacity 30 kg to 70 kg which are installed in many parts of the country.


Kuriniji Organic Fruit Processing Unit,
Batlagundu Sham Fruit & Vegetable Growers
Co-operative Marketing Society Ltd., Nimoo, Ladakh
The Fruit Grower co-operative marketing & Processing and society ltd, Kargil
Chief Horticulture Offfice, Leh, Ladhakh


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).