After earlier announcing that it intends to discontinue receiving electricity from utilities firm Berkshire Hathaway from October, American casino giant MGM Resorts International has now unveiled the nation’s largest rooftop solar array at its Mandalay Bay Convention Center.

Las Vegas-based MGM Resorts International first premiered the innovation at a special ceremony in 2014 and revealed in a statement that the now-expanded solar array has more than 26,000 photo-voltaic panels to produce a combined 8.3 mega watts of electricity, which is a new national record for such a system.

Built by New Jersey firm NRG Energy, the 28-acre solar array is expected to supply around 25% of the power demands for the entire Mandalay Bay Resort And Casino campus at full production while annually displacing approximately 8,400 metric tons of carbon dioxide. MGM Resorts international explained that this is equivalent to taking more than 1,700 automobiles off the road while the electricity due to be produced could power 1,340 homes for a full year.

“MGM Resorts International has a long history of integrating environmentally responsible practices throughout our operations to help preserve the planet’s limited resources,” read a statement from Cindy Ortega, Senior Vice President and Chief Sustainability Officer for MGM Resorts International. “Our continued partnership with NRG Energy is a source of pride and inspires our desire to continually implement innovative solutions that promote renewable energy.”

MGM Resorts International stated that NRG Energy is to own and operate the Mandalay Bay Convention Center’s solar array through a 25-year agreement. The Nevada firm declared that the system has already helped to provide it with “pricing stability” while reducing the amounts of energy drawn from the southern Nevada grid during peak times of electricity demand.

“The expansion of our rooftop solar installation at Mandalay Bay Convention Centrer significantly advances our resort’s commitment to being a leading sustainable destination for conferences and conventions,” read a statement from Chuck Bowling, President and Chief Operating Officer for Mandalay Bay Resort And Casino. “Utilizing energy produced from a renewable resource is a cornerstone of our comprehensive strategy of sustainable operations.”