Power ledger is a blockchain-based peer-to-peer energy trading platform enabling consumers and businesses to sell their surplus solar power to their neighbours without a middleman. The project was developed in western Australia and is currently in a trial stage. 

The project is significant because electricity prices in Australia are extortionately high, home owners may sell their electricity gathered by solar panels back to the grid through western power however the wealth generated from this process is infinitesimally small.

The power ledger project is greatly sponsored  by a myriad of institutions including western power (the only company allowed to sell power in Perth WA), the Australian government, Curtin university, and even Richard Branson. Richard Branson is of course the owner of Necker Island, an entire island powered by solar power! 

Since power ledgers ICO (07/Oct/2017) it has appreciated from around $0.1 AUD to around $1 AUD. Power ledgers road map is relatively short spanning approximately two years before fully functional.  

Power ledger is still largely unknown only recently has it been available on  Bittrex.

In my opinion, this is a fantastic investment opportunity.