The dominant grid storage technology, PSH, has a projected cost estimate of $262/kWh for a 100 MW, 10-hour installed system. DOE's Energy Storage Grand Challenge supports detailed cost and performance analysis for a variety of energy storage technologies to accelerate their development and deployment The U. Department of Energy's (DOE) Energy Storage Grand Challenge is a comprehensive program that seeks to accelerate. This Order formally expands the State's goal to 6,000 Megawatts of energy storage to be installed by 2030, and authorized funds for NYSERDA to support 200 Megawatts of new residential-scale solar, 1,500 Megawatts of new commercial and community-scale energy storage, and 3,000 Megawatts of new. The Department of Energy's (DOE) Energy Storage Grand Challenge (ESGC) is a comprehensive program to accelerate the development, commercialization, and utilization of next-generation energy storage technologies and sustain American global leadership in energy storage. Much of NLR's current energy storage research is informing solar-plus-storage analysis. Energy. To determine the cost of a solar-plus-storage system for this study, the researchers used a 100 megawatt (MW) PV system combined with a 60 MW lithium-ion battery that had 4 hours of storage (240 megawatt-hours). A 100 MW PV system is large, or utility-scale, and would be mounted on the ground.