Energy News: City officials in Ann Arbor, Michigan announced a two year plan  to convert all 1,046 of its 120W incandescent downtown streetlights to efficient 56W LEDs. They say the $630,000 installation project will save the city $100,000 per year and will reduce greenhouse emissions. Not to mention the added benefits of light quality and safety, a claim LEDcity makes here . Ann Arbor looks to be leading the race right now, but both Raleigh, North Carolina  and Toronto  embraced LED conversion programs on smaller scales. Ann Arbor already converted all of its traffic lights to LEDs. Read more about such projects here.