http://qui.live.mediaspanonlinen.com/rss/ Quincy Herald Whig en-us By EDWARD HUSARHerald-Whig Staff Writer The city of Quincy hopes to save money by converting some of its street lights to high-pressure sodium (HPS) fixtures. HPS fixtures require less energy than traditional mercury vapor (MV) lights found on most Quincy streets. So the city is gradually converting its lights to the more energy-efficient system. This effort received a boost earlier this year when AmerenCIPS agreed to replace 130 of Quincy's MV fixtures with HPS at no cost to the city. This was done through the company's "municipal street light conversion program" tied to the Illinois electric rate relief plan implemented last year. http://qui.live.mediaspanonline.com/new_story/Streetlight-Conversion--MON