Energi coin is a fork of Dash which was launched in April 2018. It is a Proof of Work, Masternode coin which uses a unique hashing algorithm called Energi hash which is a modified version of dagger-hashimoto.
1 nrg is 3.14
5000 nrg is 16500 doller
You can sell it in any exchanger to get btc and easy sell
Or find a erg buyer sell slowly slowly
There are many buyer trying to buy it take time to find 1 trested one