You can invest in Electra Protocol by buying XEP coins through the available exchanges.
If you unsure how to buy crypto currencies, please read the document How to buy XEP on an exchange. After you invested in XEP, we suggest not to leave your XEP coins on an exchange, but to move them to an official XEP Wallet. When using a XEP Desktop Wallet you can also participate in keeping the network running (by keeping the wallet unlocked). In return, you will receive XEP staking rewards (3% APY).
An alternative way to invest into Electra Protocol is to buy WXEP (Wrapped XEP) on PancakeSwap.