Re: Bitcoin challenge transaction: ~100 BTC total bounty to solvers!
mine spent electricity will cost more than a reward. 
I have a 6kw solar panel mounted on our roof, and we have some surplus electricity most of the time, so due to a low price for selling the extra produced, im happy to use some extra kw while scanning for wallets in this challenge.
So in the daylight hours im running on pretty much zero cost of scanning, only using paid electricity in the night hours
I'm thinking of installing a solar panel. But the battery costs too much. The problem in the electrical world. Renewable nergs need to gain weight. Bitcoin and electricity are in contrast. Is Bitcoin a hope for a democratic world? Well electricity consumption. Anyway let's focus on the puzzle: d