Against the backdrop of the accelerated transformation of the global energy structure, LG Energy Solution and General Motors are making key strategic adjustments to their joint venture Ultium Cells – shifting the focus of the Tennessee factory to the production of lithium iron phosphate (LFP) batteries and fully entering the US energy storage market. This move not only reflects the change in technical routes but also clearly signals that the energy storage sector is becoming a core growth point in the industry.
From a global perspective, the demand for energy storage is rapidly increasing. This is especially driven by the rise in the proportion of renewable energy, and the power grid’s reliance on energy storage systems has significantly strengthened. Relevant data shows that the energy storage industry has entered a stage of large-scale growth:
Global energy storage market growth data (Data source: BloombergNEF)
| Years | Global new installed energy storage capacity (GWh) | year-on-year growth | stage |
| 2021 | 27 GWh | — | Energy storage initial stage |
| 2022 | 45 GWh | +67% | Clearly driven by policy |
| 2023 | 100 GWh | +122% | The explosion of optical and storage integration |
| 2024 | 160 GWh | +60% | The United States and China dominate |
| 2025 | 230 GWh | +44% | Grid demand grows |
It can be seen that the continuous high growth of the energy storage market has provided new growth opportunities for battery manufacturers, and has also prompted traditional battery power suppliers to accelerate their transformation.
From a technical perspective, lithium iron phosphate batteries are becoming the mainstream choice in the energy storage sector. The main reasons for this are their cost, safety, and longevity advantages:
Comparison between LFP and lithium-ion batteries (data source: BloombergNEF)
| Indicator | Lithium Iron Phosphate (LFP) | Lithium-ion Battery (NCM/NCA) |
| Cost ($/kWh) | 80–110 | 120–160 |
| Cycle Life | 4000–7000 times | 1500–3000 times |
| Thermal Stability | Extremely high | Medium |
| Energy Density | Low | High |
| Safety | High | Medium |
| Application Scenarios | Energy storage, power grid | Electric vehicles |
As the requirements for safety and investment returns in energy storage projects increase, LFP batteries are rapidly replacing the traditional ternary technology and becoming the mainstream solution for grid-level energy storage.
From the perspective of regional markets, the United States is undoubtedly one of the most promising energy storage markets at present. Under the dual influences of policy-driven factors and the demand for grid upgrades, its market size has been continuously expanding:
The scale of the US energy storage market (data source: BloombergNEF)
| Year | US Energy Storage Installed Capacity (GWh) | Global Share | Main Driver |
| 2022 | 18 GWh | 40% | Policy Subsidies |
| 2023 | 35 GWh | 35% | Grid Upgrades |
| 2024 | 60 GWh | 38% | IRA Act Promotion |
| 2025 | 85 GWh | 37% | Local Manufacturing Acceleration |
Driven by the Inflation Reduction Act (IRA), domestic manufacturing capabilities have become a key competitive factor. This explains why Ultium Cells has focused its efforts on the factory in Tennessee.
Meanwhile, the industry competition landscape is also undergoing changes. As the growth rate of demand for electric vehicles slows down, more and more enterprises are increasing their investment in the energy storage sector, including companies like Tesla and BYD which have already made early preparations:
Energy storage layout of North American battery enterprises (data source: SNE Research)
| Enterprise | Technical Route | Layout Focus | Strategic Direction |
| LG + GM（Ultium Cells） | LFP + Li(NiCoMn)O2 | Tennessee | Energy Storage Transformation |
| Tesla | LFP + Self-developed | Texas / Nevada | Energy Storage + Electric Vehicles |
| BYD | LFP | Global Export | Energy Storage System |
| Fluence | LFP (Integrated) | USA | Grid Energy Storage |
It can be seen that “LFP + local manufacturing” is becoming the core competitive logic in the North American energy storage market.
From the perspective of cost structure, batteries remain the largest component in the energy storage system, directly influencing the project’s revenue:
Cost structure of energy storage systems (data source: Lazard)
| Cost composition | Percentage |
| Battery system | 50%–60% |
| PCS (inverter) | 10%–15% |
| BMS/EMS | 5%–10% |
| Installation and Maintenance | 15%–20% |
This further indicates that choosing LFP batteries with greater cost advantages will be the key to making the energy storage projects profitable.
Overall, LG and General Motors’ decision to shift Ultium Cells to produce lithium iron phosphate batteries is not only in line with market trends but also an important strategic move to seize the high-growth sector of US energy storage. For battery industry enterprises, energy storage has shifted from being a “complementary market” to a “core battlefield”, and the LFP technology route is becoming a crucial factor in this round of competition.
