Nikola, the Phoenix-based electric truck maker, has seen a turnaround in its fortunes after facing challenges due to its founder's mismanagement and battery recall issues. The company has shifted its focus to hydrogen-powered big rigs, particularly the Tre semi trucks, which have been well-received by customers like IMC Logistics. Drivers praise the hydrogen trucks for their quiet operation, clean emissions, and efficient regenerative braking. Despite the high cost of hydrogen fuel and limited infrastructure, Nikola is setting up temporary refueling stations in California and plans to expand its network in high-demand areas. California's state rebates are incentivizing long haulers to switch to greener vehicles, with Nikola leading the way in the hydrogen truck market. The company's CEO, Steve Girsky, remains optimistic about the hydrogen supply and the growing interest from partners in the industry. While Nikola posted impressive revenue growth from hydrogen truck sales, it is still striving for profitability and aims to deliver up to 350 trucks by 2024. With California being a key market for both battery and hydrogen vehicles, the state's stringent emission regulations and incentives are driving the adoption of sustainable transportation solutions.