How to Grid-Tie DIY Solar without Backfeeding for Crypto Mining

In this DIY Solar Helpdesk video, I'll show how to prevent backfeeding to the grid using a 30-amp relay and current-sensing switch. As long as the load is greater than the available solar current, the relay closes and powers the miners with solar energy. If a miner is shut off or stops hashing, the load current drops, and the solar is disconnected to prevent backfeeding the grid with the excess power.

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