nostr:npub16rsfuhv9vvn39cmrdg9s9qcq20lfqp4u8w35f8svm30dny345d7qhc2zfj nostr:npub14w37fjdpkezfacsz3q8r97yqs9e0cquntlfkamgdhewnpaud4x9qtu9vjx 

this is an optical - laser - system.

my guess 50% efficient in making laser and 20% efficient at turning it back into electricity. so 10% efficient.

it will need to be diffuse so birds and aeroplanes are not... you know...