• Solar cells provide power for most space installations because they have no moving parts that need service or fuels that require refilling.
• Solar cells provide power for most space installations because other electric power sources are prohibitively expensive to install.
• Since solar cells are able to utilize artificial light, they are the best choice as a power source for space installations.
• Solar cells are chosen to provide power for most space installations, because they are the safest way to produce energy.

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