Halcyon's BESS Tracker compiles information on newly proposed, in development, and under construction battery energy storage systems across the United States. The tracker was released in December 2025 with projects over 100 MW of capacity and began adding projects under 100 MW in.
The Wellington Battery Energy Storage System project consists of a grid-scale BESS with a total anticipated discharge capacity of 500MW and a storage capacity of 1,000MW hours. Fluence Energy had the contract to design, supply, construct and commission the installation.
In 2025, the typical cost of commercial lithium battery energy storage systems, including the battery, battery management system (BMS), inverter (PCS), and installation, ranges from $280 to $580 per kWh.
The project is earmarked to deliver 150MWp of solar PV power integrated with a 50MW battery energy storage system (BESS) to the national grid over a 25-year term.
The Zarafshan BESS forms the first phase of a national battery storage program following Masdar's December 2023 agreement with Uzbekistan's Ministry of Energy and Ministry of Investments, Industry and Trade to develop up to 575 megawatts (MW) / 1. 15 gigawatt-hours (GWh) of BESS.
Initial costs for solar panels can range from $10,000 to $30,000 for a small to medium-sized farm. USDA's Rural Energy for America Program (REAP) offers grants covering up to 25% of total project costs. Energy audits can identify the best solar solutions and potential savings.
Recent pricing trends show standard industrial systems (1-2MWh) starting at $330,000 and large-scale systems (3-6MWh) from $600,000, with volume discounts available for enterprise orders.
E-START ENERGY delivers utility-scale BESS for frequency regulation, peak shaving, electricity market participation, and grid-side solutions. Request a free consultation and get a custom quote for your project — from 1MW to 500MW+.
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