Like many other Solar companies, First Solar has diversified into project development, and set its sights on places where the high price of power means that its solar modules can be profitable without uncertain subsidies.

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More controversially, under the proposed rules, new projects will be divided into two categories one that require power producers to use solar modules manufactured in India, and the other that won't have any such restriction.

WSJ: India Plans Subsidies to Boost Solar-Power Sector

Down 40% in the past year, PV modules now account for only about a third of the cost of a power plant.

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In the server market, the company is already selling memory interface devices, PCI express switches and timing components, and plans to add to the mix flash memory controllers, temperature sensors, power modules and other chips.

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Bosch said it would unwind the solar power venture and shut down manufacturing ingots, wafers, cells and modules in early 2014.

FORBES: Bosch Shuts Down Solar Business, Suffers Steep Losses

Over the past six months, the decline in polysilicon prices has eclipsed similar price reductions across the solar-power supply chain including a 23% reduction in wafer prices and 6.5% for modules.

FORBES: Silicon Prices Plunge As Solar Market Softens