The Shedd Aquarium in Chicago announced it would be improving its lighting in order to make the large and popular aquarium more energy efficient. Shedd will be the first clean energy-powered aquarium in the country. The lighting upgrade will save about 10 million kilowatt-hours annually, enough to power 750 houses.
Ceramic Metal Halide is relatively new light source, touted for being compact, efficient, and powerful. CMH is part of the high-intensity discharge (HID) lighting category, which offers the highest efficacy and longest life of any lighting type, and saves up to 90% of lighting energy when they replace incandescent lamps.