Agriculture has always relied on sunlight and water, that’s a known fact since the birth of civilization. A project initiated in Upper Egypt uses sunlight to extract water from arid land, seeking to replace diesel generators that have traditionally been used.
A new record for concentrated photovoltaics efficiency has been broken by Solar Junction, the same company that announced a 41.4% efficiency in February. The new score is 43.5% and their multi-junction solar cells can be produced right away.
Yet another efficiency record has been established for mass-producible solar cells: 23.4%. The Fraunhofer Institute for Solar Energy Systems (ISE) from Germany succeeded to manufacture a single-crystal silicon solar cell of a thin p-type semiconductor layer residing on an n-type semiconductor substrate. The solar cell’s area is 2x2cm.