# What\`s kWh

GreenBTC.Club V2 issues a new ERC-20 token KWH by burning ART (1 ART -> 1000 KWH) in a one-way behavior. This eliminates the overhead of maintaining the bi-directional mapping of ART and AREC and thus, lowers the gas fee. KWH, standing for Kilo-Watt Hour, is used in GreenBTC.Club V2 as a light weight green asset for all greening activities.

<table><thead><tr><th width="115">Token</th><th width="479">address</th><th>price</th></tr></thead><tbody><tr><td>kWh</td><td><a href="https://polygonscan.com/token/0x5740a27990d4aaa4fb83044a6c699d435b9ba6f1">0x5740a27990d4aaa4fb83044a6c699d435b9ba6f1</a></td><td>0.01 U</td></tr></tbody></table>

## How to Swap

1. Go to <https://www.greenbtc.club/swap>

<figure><img src="https://630551051-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEo6fsxfJQGERTECZeBD0%2Fuploads%2Fppp6dFYjd7sUyrLtn867%2Fimage.png?alt=media&#x26;token=8b697177-8fcf-422d-a96b-afb72326a64b" alt="" width="563"><figcaption></figcaption></figure>

2. You can swap kWh with USDT, USDC.e or ART

<figure><img src="https://630551051-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEo6fsxfJQGERTECZeBD0%2Fuploads%2Fs5D53mLW5hLApuxN1BP1%2Fimage.png?alt=media&#x26;token=cfaf4c9a-64b4-48c0-a5e8-3ea698466615" alt="" width="563"><figcaption></figcaption></figure>