Delta’s first proprietary large-scale solar plant, Delta Ako Energy Park, was completed and put in service in January 2016. This power plant is located in a mountainous area of Ako City in Hyogo, Japan. The new plant is equipped with a capacity of 4.6MW and takes up an area of 96,000m2. One of its main features is a distributed PV system built with medium-size solar inverters in response to the irregular terrain and to improve the overall power generation efficiency. As the largest class mega solar plant with a distributed system connecting to an extra-high voltage (33,000V) grid in Japan, Delta Ako Energy Park is expected to generate approximately 4,900,000kWh per year, which is equivalent to the electricity consumed by 930 local households annually.