To be precise, he’s sueing the lawyers Twitter hired in the case to force him to buy, as Twitter paid them a bunch of money they weren’t legally obligated to pay, just before the purchase went through.
Except once you have the turbines and panels, you don’t have to keep importing resources to run them. Sure, you might need parts for maintenance, but if things go south it’s a lot easier to reverse engineer parts than to find new oil suppliers.