Plug Power (PLUG) to Post Q3 Earnings: What’s in the Offing? Posted byZacks Equity Research November 5, 2021 Leave a comment on Plug Power (PLUG) to Post Q3 Earnings: What’s in the Offing? Plug Power’s (PLUG) Q3 earnings results are likely to reflect the wide popularity of fuel-cell engines. However, high costs and operating expenses, supply-chain issues and forex woes might also hurt.