Deploy a Smart Contract on Volta with Remix

Below are steps to deploy a on the (the test network for the ) using . Remix is a web application used to compile, deploy and test smart contracts on Ethereum networks.

In order to deploy a smart contract to the Energy Web Chain Main Network, rather than the Volta Test Network, the steps are identical, except that you will connect your MetaMask to the Energy Web Chain rather than to Volta. We recommend that you always deploy and test your smart contracts to Volta first to make sure they behave as expected.

Once your smart contract is deployed, you can use the contract's ABI and address on the blockchain to interact with its public methods. For more information on how to interact with smart contracts, go .

1. Configure MetaMask to connect to the Volta Test Network

You can see steps for doing this are . If you do not have a MetaMask installed, you can do so .

2. Get Volta Tokens

You will need to to pay for the transaction fee for deploying the smart contract to the blockchain. For directions on how to get Volta Tokens, go . To learn more about what transaction fees are, you can go .

*Note that if you are deploying to the Energy Web Main Network, you will need to have .

3. Navigate to

4. Navigate to the "Deploy and Run Transactions" icon on the left panel (shown below).

In the "Environment" dropdown, selected "Injected Web3". Notice that when you select this, "Custom (73799) network shows up. 73799 is the Volta Test Network - this confirms that we are connected to the Volta network via MetaMask.

5. Confirm the connection on MetaMask

You will need to confirm the connection to MetaMask.

6. Create a simple smart contract

Go to the file explorer panel (select the first icon on the left panel). Add a new .sol file in the 'Contracts' folder. Below it is called VoltaContract.sol.

In the .sol file, add the following code:

pragma solidity >=0.4.0 <0.7.0;

contract SimpleReturn {
    function get() public pure returns (string) {
        return "Volta";
    }
}

7. Compile the smart contract

If there are no errors, click "Compile VoltaContract.sol" (make sure that the 'Language' selected is 'Solidity').

If you want to interact with your contract in the future using an API client, you will need the contract's ABI. The ABI is in the bottom right hand corner of the Solidity Compiler page after it is compiled.