Tesla was one of the pioneers of the grid-scale battery storage market, but has faced increasing competition in the past few years. In this article we look under the hood of its latest grid-scale BESS product, the Megapack 3. 

Denmark-headquartered multinational energy company Ørsted has put its 250MW/500MWh Old 300 energy storage project in Needville, Texas, US into operation.

Tesla’s energy storage deployments rebounded in the second quarter of this year, but factors, including a decline in ASPs, had a significant impact on the company’s energy division’s gross margins.

NatPower and Tesla have signed a multi-year supply and execution agreement covering more than 25GWh of BESS across Italy and the UK.

Tesla’s quarterly energy storage deployments fell 15% while revenues for its energy division dropped 12% year-over-year from Q1 2025 to Q1 2026.

Tesla reported record energy storage deployments and business segment profits in Q3 2025, just ahead of a shareholder vote on CEO Elon Musk’s historic remuneration package.  

Tesla announced its new integrated 20MWh battery energy storage system (BESS) solution, the Tesla Megablock, on 8 September in Las Vegas, US.

Tesla energy storage division saw its highest quarterly gross profits as the company’s automotive business continued to see dampened demand.

State-owned energy company Stanwell has confirmed the arrival of Tesla Megapack 2XL units at its 300MW/1,200MWh battery energy storage system (BESS) at Stanwell Power Station in Queensland, Australia.

Tesla’s energy storage business continued to grow in Q1 2025 even as profits and vehicle sales fell, but faces greater exposure to trade tariff risks than its automotive segment.