Many NGOs who work for upliftment of Tribals have found this model very effective. There are two schemes.
Scheme 1 : The NGOs set up Hand Operated Expellers like these, (which do not require electrical power) in there centers. Tribals come to their center with their bags containing many Oil Bearing Seeds like Jatropha, Neem (Non Edible oils for lamps), Pongamia, Mahua (Edible oils for Cooking) and crush the seeds themselves. The tribals carry the extracted oil home for burning these in oil lamps and for cooking. The Tribals leave the seed cake in the center. The NGOs then process the seed cake to Bio Fertilizer in their Centers, and sell it. Tribals collect sufficient seeds to last for a year, but crush these to get oil as and when required.
Scheme 2 : The same NGOs buy the oil, extracted as above and Sell it to Temples, Hotels, Households for burning them in simple lamps, as a social cause. The NGOs also tie-up with soap manufacturers for buying oil from them at a specified rate, which is passed on to Tribals.

I am associated with a Non Government Organization (NGO), PRAGATI PRATISHTHAN in Thane district of Maharashtra, just 100 miles from Mumbai, which works for Jatropha Plantation in number of villages, where we plan to plant 10 million (1 Crore) Jatropha saplings, in the monsoon season, in the ADIVASI (Aboriginal) lands. The saplings will be shortly ready and farmers along with owners of non productive / barren land are ready for Jatropha plantation. With these plantations, we will reduce CO₂ from atmosphere, and lend a small hand in reducing Climate Change Disasters. We are ready to do the plantation in 10,000 Acre of land during this monsoon season starting June 2009.

An Electricity Generating set is now commissioned in the same village. The engine runs on 100% Jatropha Oil (Not Diesel or BioDiesel blend). It lights up Two Electric Bulbs each, in 50 houses of the village. It is a new experience for the villager's in their life time.

Extraction of Jatropha oil from Seeds

Oil is filtered before use

Oil is used as fuel for Diesel Engine

Production of Bio Gas from Jatropha Seed Cake

Production of Bio Fertilizer from Treated Jatropha Cake

Net House to produce Saplings from Seeds