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Hello, I am writing a blog article about storing solar energy as heat. Can someone credible check this?

I calculated I need 185.4 liters of vegetable oil to substitute a 6.4kWh battery if I had the same energy conversion (Tesla says 90%) and energy loss over time (no idea about this value) as batteries. The range is 100°C to 180°C. Is this correct?

It just seems really weird that people want to use batteries for solar installations if there was such an alternative.

Also, any information about this topic would be awesome. I found this. I want to try to find out if it is plausible to consider such a system with a low-temperature differential sterling engine. I want to find out how it could compare to today's solar installations.

<<moderator: bold text made plain>>

I calculated I need 185.4 liters of vegetable oil to substitute a 6.4kWh battery if I had the same energy conversion (Tesla says 90%) and energy loss over time (no idea about this value) as batteries. The range is 100°C to 180°C. Is this correct?

It just seems really weird that people want to use batteries for solar installations if there was such an alternative.

Also, any information about this topic would be awesome. I found this. I want to try to find out if it is plausible to consider such a system with a low-temperature differential sterling engine. I want to find out how it could compare to today's solar installations.

<<moderator: bold text made plain>>

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