Image: Estuary Power
A 185 MW solar, 400 MWh battery energy storage system (BESS) project in Lincoln County, Nevada, featuring Tesla’s Megapacks has officially started operations. The $98 million installation, developed by Estuary Power, has kicked off its first phase with 70 MW of solar PV capacity (via Energy Storage News).
The second phase of the “Escape” project, featuring 115 MW of solar power and 400 MWh of battery capacity featuring Tesla’s Megapack technology, is set to begin supplying energy to MGM Resorts International’s Las Vegas hotel and casino properties later this year.
Tesla’s Megapack is a grid-scale battery storage solution that helps utilities and renewable energy providers store excess solar or wind energy and deploy it when needed. Each unit can store over 3 MWh of energy, and they’re stackable to support projects from a few megawatts to over a gigawatt. In this case, Tesla is providing and installing the 400MWh battery system for Estuary Power’s Nevada project.
Estuary began supplying Caesars Entertainment and Wynn Las Vegas with power from the project’s 70 MW Phase 1 solar installation back in June. Once Phase 2 is online, MGM will join the growing list of casinos powering operations with clean energy.
This project is part of a broader push by Tesla to deploy Megapacks around the world. In Australia, several battery facilities — both completed and in-development — are leveraging Tesla Megapacks to aid in the country’s plans to reduce its reliance on coal plants. Earlier this year, Tesla Megapacks were also selected for China’s largest grid-scale battery storage facility.
Tesla deployed 9.6 GWh of battery energy storage products during Q2 2025, bringing its total for the first half of the year to around 20 GWh. The Escape project in Nevada marks another major milestone for Tesla’s energy business as the company expands beyond EVs to play a key role in grid resilience and decarbonization globally.
