MGM Resorts International is planning to power Las Vegas Strip casinos using solar arrays. MGM Resorts is partnering with a Chicago-based renewable developer on a new 100-megawatt photovoltaic array set to go online in 2020, about 25 miles northeast of Las Vegas. The dedicated solar array will be capable of supplying up to 90 percent of daytime demand at the company’s 13 Las Vegas casinos. The array will consist of 336,000 solar panels capable of producing enough power for about 27,000 homes. Construction is slated to start next year, and is expected to employ about 350 people during construction . All of the electricity generated by the array will go to MGM Resorts under a 20-year agreement.