Charging
China's Hami Solar Plant Uses Molten Salt for Nighttime Power Generation

China's Hami Solar Plant Uses Molten Salt for Nighttime Power Generation

Updated July 10, 2026

3 min read

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China Three Gorges Corporation has launched the world's largest solar PV and concentrated solar hybrid project in the Gobi Desert, enabling power generation after sunset without lithium batteries. The 1-gigawatt Hami project utilizes molten salt to store solar energy as heat, allowing it to produce electricity for up to eight hours after dark. This innovation may influence future energy solutions for electric vehicle (EV) charging.

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Why it matters

  • The use of molten salt storage could reduce reliance on lithium batteries, potentially lowering costs for EV charging infrastructure.
  • Increased availability of nighttime solar energy may enhance charging access for EV owners, particularly in regions with high solar potential.
  • This technology could lead to more sustainable energy solutions, impacting the overall ownership cost of EVs.

Reporting notes

EV Signal briefs are written to explain the verified change first, then add the context EV buyers and owners need to understand cost, availability, charging access, eligibility, or ownership impact.

If details are still developing, we try to say what is confirmed, what comes from secondary reporting, and what readers should verify before acting.

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Reviewed from: Electrek.

China's Hami Solar Plant Uses Molten Salt for Nighttime Power Generation

China Three Gorges Corporation (CTG) has officially commenced commercial trial operations of the Hami solar project, a groundbreaking initiative in the Gobi Desert. This facility is notable for being the world's largest solar photovoltaic (PV) and concentrated solar hybrid project, capable of generating power after sunset without relying on lithium batteries. Instead, it employs molten salt technology to store solar energy as heat, allowing for electricity production for up to eight hours after dark.

What Changed

The Hami project, with a capacity of 1 gigawatt, marks a significant advancement in solar energy technology. By utilizing molten salt for energy storage, the plant can effectively harness solar power during the day and continue to supply electricity into the night. This method contrasts sharply with traditional solar installations that typically rely on lithium-ion batteries for energy storage, which can be costly and resource-intensive.

Why It Matters for Buyers/Owners

The implications of this development are particularly relevant for EV buyers and owners. Here are a few key points to consider:

  • Cost Reduction: The adoption of molten salt storage could lead to a decrease in the overall costs associated with EV charging infrastructure, as it may lessen the dependency on expensive lithium batteries.
  • Enhanced Charging Access: With the ability to generate power after sunset, the Hami solar plant could improve charging access for EV owners, especially in areas with abundant sunlight but limited nighttime energy sources.
  • Sustainable Solutions: This innovation represents a step towards more sustainable energy practices, which could ultimately lower the ownership costs of electric vehicles by providing cleaner and more reliable energy sources.

Key Details from Source Material

According to Electrek, the Hami solar project is a pioneering effort by CTG that combines solar PV technology with concentrated solar power (CSP) systems. The molten salt storage system allows the facility to store thermal energy generated during the day, which can then be converted back into electricity when needed. This capability is particularly advantageous in regions where solar energy is abundant, as it maximizes the utility of solar power beyond daylight hours.

What to Watch Next

As the Hami solar plant moves through its trial operations, it will be important to monitor its performance and any potential scalability of this technology. Observers should keep an eye on how this project influences future solar energy initiatives and whether similar systems will be implemented in other regions, particularly those with high solar potential. Additionally, the impact on EV charging infrastructure and costs will be crucial as the industry evolves.

In conclusion, the Hami solar project represents a significant leap forward in renewable energy technology, with the potential to reshape how electric vehicles are charged and powered. As this technology develops, it could pave the way for more sustainable and cost-effective solutions in the EV market.

solar energyHami projectmolten saltEV chargingrenewable energy

Sources

These are the documents and reports used to build this brief so readers can verify the story directly.

EV Signal stories are AI-assisted, human-reviewed, and updated when verified details change. We prioritize source-linked reporting and practical context over generic filler. Read our editorial standards or send a correction via contact.

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