Is There a More Efficient Heat Absorbing Material for Summer Energy Storage?

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Heat absorbing materials can effectively capture heat, particularly in summer, but direct conversion of heat to electricity is not feasible. Instead, a Carnot Heat Engine mechanism is required for this process. While Peltier devices can convert heat to electricity, they operate at low efficiency, around 4%. For efficient energy storage and use, alternative methods or technologies may need to be considered.
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I am wondering if there is a heat absorbing material that can absorb heat material at high rate , especially in summer and that heat can be converted to electricity for storage in my battery bank to light my LED lamps.
 
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There are plenty of heat absorbing materials out there. But to your specific question, you can't convert heat directly to electricity. You need to use a Carnot Heat Engine type mechanism to do this.
 
Well a peltier device will do it, but at very bad efficiency (like 4%).
 

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