Fluid power has been used for many years in solar power applications where hydraulic systems move the large solar panels at the track the sun's rays. In order to optimize the exposure of the panels to the sun, they are moved throughout the day.
This is the fastest growing segment of energy technology where photovoltaics converts light energy into electricity. Because of the growing need for solar energy, the manufacture of solar cells and accompanying equipment has expanded as well. Photovoltaic production is doubling every two years and has done so since 2002. By the end of 2007,cumulative global production was 12,400 megawatts.