Solar or Sollar: How To spell?

The word Solar is misspelled against Sollar, a noun meaning "A platform in a shaft, especially one of those between the series of ladders in a shaft."

Sollar has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings so & ar which should not be misspelled with single 'L'
Wrong Spelling:  so-l-ar 
Correct Spelling:  so-ll-ar 
Find more incorrect spellings of Sollar to spell right way.