In India, millions of small farmers depend on

diesel-powered

irrigation pumps to water their crops. But diesel has become a liability: Its price rises every year, making it ever harder to pay for irrigation. In a financial squeeze, farmers are forced to abandon their land and move to city slums to look for other work. At the same time, diesel engine emissions accelerate global warming, and extreme climate events like super floods and mega droughts further threaten farmers’ fragile livelihoods.

Pumps powered by

clean renewable energy

, especially solar pumps, could solve both the economic and environmental dilemma: they don’t emit greenhouse gases, and their fuel is free. But there is currently no pump available that is tailored specifically to the needs of the Indian small farmer, with an unsubsidized price low enough to compete with the diesel pumps and be adopted widely.

To solve this problem,

Greenpeace

is calling designers, tinkerers, inventors, students of all fields from all over the world, to join forces and design a breakthrough design: a renewable energy powered and portable water pump that can provide a viable alternative to diesel-driven ones.

Entries will be judged on the following criteria:

•

Capability

: how well does the pump perform compared to existing diesel pumps? How well does it address the current problems (overview here) with renewable energy pumps?

•

Viability

: does the design have broad applicability? Is it easily usable? Does it fit into farmers’ lives and work habits, or will it require education?

•

Affordability

: is the design within reach of farmers without relying on government subsidies?

•

Feasibility

: how close is the design to being a workable product? Does it require additional technological advances or development?

Entries should include a sketch or rendering, expected cost, description of operation, expected water flow, and description of portability.

There is no entry fee

.