1) Energy harvesting 2) Water well
Found on
https://www.crosswordclues.com/clue/windpump
A windpump is a type of windmill which is used for pumping water. ==History== Windpumps were used to pump water since at least the 9th century in what is now Afghanistan, Iran and Pakistan. The use of wind pumps became widespread across the Muslim world and later spread to China and India. Windmills were later used extensively in Europe, particula...
Found on
http://en.wikipedia.org/wiki/Windpump
No exact match found.
