I'm trying to set up a solar power system for my 3-phase mining operation, but I have some questions regarding the grid connection. My house is currently on a single-phase grid, and I'm planning to install a 3-phase inverter connected to a separate breaker panel. My main concern is what happens to the excess energy my machines don't use. Is there a way to bleed off this excess power and sell it back to the grid? I was thinking about running a breaker from the panel into a step-down transformer, but I'm unsure if that setup would work to bleed excess energy into the grid. Any insights would be greatly appreciated!
2 Answers
Honestly, this sounds like a risky plan. Using a complex setup with transformers and breakers may lead to problems. If your machines don’t specifically require 3-phase power, it might be better to stick to a simpler single-phase inverter. Plus, you’ll likely need to have any system inspected and approved to connect to the grid properly. Keeping it simple can save you a lot of hassle later!
It’s technically possible but quite complicated and expensive. You'd need a battery system to store the excess energy, then use another inverter that can sync with the grid to sell any surplus back. It might work out if you can lay down the cash for the setup.
So to break it down, you'd recommend using a battery bank for the excess energy and then connecting that to a single-phase inverter for the grid? Sounds like the path to take!