[CrzyLngPwd]

Trees also store the sun, and can release it back as heat.

Blackberries store the sun too, and later release it as wine or jam :)

[xigoi]

Trees store it extremely slowly, making them impractical for usage as batteries.

[gerdesj]

Blackberry crumble, with clotted cream or custard.

[shiandow]

They can release it as glucose and oxygen actually, slightly better than just heat.