How Social Entrepreneurs Use Rice Husks to Power India

PBS: How Social Entrepreneurs Use Rice Husks to Power India

Some excerpts:

… FRED DE SAM LAZARO: Despite billions of dollars in new infrastructure, power interruptions are chronic in India. Consumers large and small rely on backup systems, at huge cost to both the environment and economy, says energy expert Kirit Parikh. He traces the problem to policies that never really took into account the cost of power and gave it away to some consumers.

KIRIT PARIKH, energy expert: We started out with saying that farmers should get cheap and free electricity. This was 30 years ago, when we wanted farmers to really adopt more modern technologies. It was considered a good way to promote green revolution.

FRED DE SAM LAZARO: Power was distributed cheaply or free to farmers and other groups whose votes politicians courted. Little effort was made to meter it. That prompted many people to hook themselves up illegally. Parikh says a third of all power is stolen off the grid. …

… FRED DE SAM LAZARO: … But to anywhere from a third to a half of them, it really didn't matter, because they have never been hooked up to the electric grid.

Vast swathes of rural India remain off the grid or get minimal, unpredictable service from it. …

FRED DE SAM LAZARO: Ratnesh Yadav has tried to tackle at least this part of the problem. He and a partner founded a company called Husk Power. Their idea? Village-based micro-grids.

At this one in the village of Patelli (ph) in the northeastern Bihar state, tractors arrive with rice husks, the byproduct of milling this region's staple crop. It is poured into a hopper, about 100 pounds per hour, and gassified to run a simple turbine. Each evening, 700 customers have access to power for five hours. …

… MAN (through translator): We used to work with a gas light. This is much cheaper. We used to stay open until 9:00 in the evening. Now we stay open until 10:00 or 10:30, so it's a benefit. …

… FRED DE SAM LAZARO: In five years, Husk Power has installed 75 of these simple plants. Their networks cover an area no bigger than a couple of square miles, with wires strung on poles made from bamboo, a renewable resource like the rice husk fuel.

RATNESH YADAV: The good thing about this rice husk is, it has no alternate uses. It doesn't burn easily, so you can't use it for cooking. You cannot feed it to cattle because it has high silica in it. So it is a waste. It has no value for anybody else. And that is why — and it is in plenty. …

… ERIC BERKOWITZ, investor: As people increase income, which hopefully they will, that will create new livelihood opportunities, they will have opportunities to incrementally increase electricity that they will take from these kind of solutions, and maybe add maybe two lights, three lights, a radio, a TV, a refrigerator.

It's not the only solution. There's other solutions that involve solar technologies. And Husk Power is actually looking at those kind of solutions as well.

FRED DE SAM LAZARO: Renewable fuel plants also qualify for subsidies from India's government and possibly credits in a global carbon trade. Power expert Parikh appreciates what micro-plants can provide, but he doesn't see them as a long-term solution. …