Top 10 US BESS Projects: Next Era’s 300 GW Pipeline, 1, 150 MW Darden Project, and Grid-Scale Growth (2024-2026)

The defining trend in the U.S. utility-scale solar market is the strategic integration of multi-gigawatt-hour Battery Energy Storage Systems (BESS), a shift that is fundamentally converting intermittent solar generation into a dispatchable, grid-stabilizing asset. This evolution is propelled by powerful federal incentives, such as the Inflation Reduction Act’s standalone storage tax credit, and a surge in energy demand from data centers and re-shored manufacturing. In 2024, the U.S. installed a record-breaking 50 GW of new solar capacity, with utility-scale projects accounting for 41.4 GW of that total. The dominant theme for 2025 and beyond is the proliferation of these hybrid power plants, exemplified by mega-projects like the planned 1, 150 MW Darden Clean Energy Project with its colossal 4, 600 MWh battery. However, this robust growth faces a significant bottleneck from grid connection backlogs, which are now the primary constraint on the pace of deployment.

1. Darden Clean Energy Project

Company: N/A (Developer)
Capacity: 1, 150 MW Solar, 4, 600 MWh Storage
Application: Utility-scale hybrid power generation and grid services
Source: Darden Clean Energy Project

2. Tehuacana Creek 1 Solar and BESS

Company: N/A (Developer)
Capacity: 837 MW Solar, BESS included
Application: Utility-scale hybrid power generation
Source: New U.S. electric generating capacity expected to reach a record …

3. Outpost Solar and Storage

Company: Hecate Energy
Capacity: 517 MW Solar, BESS included
Application: Utility-scale hybrid power generation
Source: US installed nearly 26 GW of new generating capacity from January …

4. Copper Mountain Solar Facility

Company: Sempra, Consolidated Edison
Capacity: 802 MW Solar
Application: Utility-scale power generation
Source: Top 10 Solar Power Plants in the USA – ELE Times

5. Danish Fields Solar Farm

Company: N/A (Developer)
Capacity: 720 MW Solar
Application: Utility-scale power generation
Source: The Largest Solar Farms in Texas: 2025 – BKV Energy

6. Gemini Solar Hybrid

Company: Quinbrook Infrastructure Partners
Capacity: 690 MW Solar, 1, 400 MWh Storage
Application: Utility-scale hybrid power generation and peak demand shifting
Source: US Solar Farm Map – Largest Projects & Locations – Cleanview

7. Hornet Solar Project

Company: N/A (Developer)
Capacity: 600 MW Solar
Application: Utility-scale power generation
Source: The Largest Solar Farms in Texas: 2025 – BKV Energy

8. Solar Star

Company: BHE Renewables
Capacity: 579 MW Solar
Application: Utility-scale power generation
Source: 5 Biggest Solar Projects in the US – Newsweek

9. Desert Sunlight Solar Farm

Company: Next Era Energy Resources
Capacity: 550 MW Solar
Application: Utility-scale power generation
Source: List of Top 12 Biggest Solar Farms in the US (2026)

10. Edwards Sanborn Solar and Energy

Company: Terra-Gen, Mortenson
Capacity: 460 MW Solar, 3, 287 MWh Storage
Application: Utility-scale hybrid power generation and grid services
Source: Top 10 Solar Power Plants in the USA – ELE Times

Table: Top 10 U.S. Utility-Scale Solar Projects by Capacity (2024-2026)

BESS Adoption, Next Era and Hecate Lead with 4, 600 MWh Projects

The industry’s adoption of hybrid power plants marks a pivotal shift in the application of solar technology. By pairing large-scale solar arrays with BESS, developers are creating assets that can store energy generated during peak sunlight hours and dispatch it during evening peak demand or when the grid needs stabilization. This capability moves solar from a variable energy source to a reliable, on-demand power provider. The Gemini Solar Hybrid project in Nevada, with its 690 MW of solar and 1, 400 MWh battery, is a prime operational example, enabling it to provide consistent power to the grid. This model significantly enhances project economics by allowing operators to participate in ancillary services markets and capture higher prices during periods of peak demand. The introduction of the standalone storage Investment Tax Credit (ITC) under the IRA has been a critical enabler, de-risking the high capital cost of storage, which stood at $458/k Wh for utility-scale batteries in 2024.

NextEra and Hecate Lead Solar Development

The section discusses industry leadership, and this chart directly confirms the dominance of developers like NextEra Energy and Hecate in adding new solar capacity in 2024.

(Source: Cleanview)

Texas and California, 82% of New Solar Capacity Additions

The expansion of utility-scale solar is heavily concentrated geographically, with Texas and California accounting for a staggering 82% of new capacity additions. This concentration is a direct result of a confluence of factors: superior solar irradiance, large tracts of available land, and, critically, immense load growth. Texas, in particular, has become the epicenter of development, with projects like Tehuacana Creek (837 MW), Danish Fields (720 MW), and Hornet Solar (600 MW) highlighting the state’s capacity for giga-scale projects. California’s mature market continues to push the envelope on hybrid integration with projects like the Darden Clean Energy Project (1, 150 MW solar / 4, 600 MWh BESS) and the operational Edwards Sanborn Solar and Energy (460 MW solar / 3, 287 MWh BESS). Nevada is another key state, hosting the massive Copper Mountain and Gemini projects. This regional leadership demonstrates where policy, resources, and demand align to support mainstream adoption at the highest level.

Map Confirms Solar Concentration in TX, CA

As the text highlights the heavy concentration of solar projects in Texas and California, this map provides the perfect visual evidence, showing facility clusters in those states.

(Source: Rextag)

686, 439 MW, The Planned Solar Pipeline Faces Gridlock Headwinds

The scale of the projects in the current pipeline signals the commercial and technological maturity of both utility-scale PV and integrated BESS. With a planned capacity of 686, 439 MW across the U.S., the industry has proven it can develop and finance giga-scale renewable infrastructure. Projects consistently exceeding 500 MW are now the norm, not the exception. However, this technological readiness is running into a wall of infrastructural deficit. The single greatest barrier to realizing this pipeline is not technology or finance, but the multi-year backlogs in grid interconnection queues. Developers face significant delays and soaring grid upgrade costs before their projects can connect to the transmission system. This creates a significant execution risk, where the technical viability of a project is overshadowed by the logistical challenge of grid access. While trade injunctions caused delays for about 20% of planned capacity in 2025, the interconnection bottleneck is a more systemic and long-term threat to the pace of deployment.

Next Era Energy’s 300 GW Pipeline Signals Scale as a Competitive Moat

The critical determinant for success in the 2025-2026 utility-scale solar market will be a developer’s strategic capacity to navigate grid interconnection bottlenecks, not simply its technological prowess. If legislative efforts to streamline permitting fail to gain traction, expect an increase in project cancellations and further market consolidation around well-capitalized players with mature project portfolios in favorable grid locations.

• The projected dip in new utility-scale installations from a peak of approximately 40 GWdc in 2025 to around 30 GWdc in 2026 is a leading indicator that gridlock is already impacting the realization of the development pipeline.
• The market leadership of giants like Next Era Energy Resources, which holds a massive 300 GW development pipeline, underscores that scale, purchasing power, and deep utility integration are becoming insurmountable competitive advantages.
• The continued emergence of massive hybrid projects like Darden (4, 600 MWh BESS) and Edwards Sanborn (3, 287 MWh BESS) signals that standalone solar projects are rapidly becoming less competitive. For premium projects targeting the highest revenue streams, BESS integration is no longer an option but a requirement.

The questions your competitors are already asking

This report covers one angle of the US utility-scale solar and storage project pipeline. The questions that matter most depend on your work.

• Are projects in the post-injunction solar pipeline on track to clear grid connection queues for their 2025-2026 operational dates?
• What is the outlook for multi-gigawatt-hour BESS deployment to support the US grid, especially with rising energy demand from data centers?
• Which developers are gaining ground in the US utility-scale solar+storage market, and what defines their project strategy?

This report does not answer these. Enki Brief Pro does.

Your question, your angle, your framework. SWOT, PESTL, scenario modelling. The same niche depth, built around the decision your work actually depends on.

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