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UC Davis Innovates Nighttime Solar Panels for Clean Energy

11/29/2025

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Summary

Story summary

The University of California, Davis researchers have developed a Stirling engine that converts Earth–space temperature differences into mechanical energy for nighttime power.
In trials, the engine produced over 400 mW per square meter, enough to power small devices.
Scientists have created 'night-time solar panels' that capture escaping heat to generate electricity, producing about 1 watt per square meter.
Not an immediate fix, these advances show progress toward 24-hour clean energy.

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Story summary

The University of California, Davis researchers have developed a Stirling engine that converts Earth–space temperature differences into mechanical energy for nighttime power.
In trials, the engine produced over 400 mW per square meter, enough to power small devices.
Scientists have created 'night-time solar panels' that capture escaping heat to generate electricity, producing about 1 watt per square meter.
Not an immediate fix, these advances show progress toward 24-hour clean energy.