# DEMO Mode now available!
With the OLI dApp you can identify and choose the source of your consumed electricity. Switch your electricity tariff on a quarterly hour basis or take part in your local energy community.
Buy from your friends and neighbours and leverage local, clean and green energy production capacities. Or become a seller yourself and use your excess electricity in a optimal way.
The main processes like tariff switching and the price setting on the market are being done with a distributed ledger to help keep things decentralized, transparent and secure.
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://go.getnew.app/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
