Plug Power

Does the core business genuinely avoid or reduce emissions, or build climate resilience? Share of revenue that is actually 'green'. Fossil-dependent models score low.

Fuel cell systems do eliminate tailpipe emissions at point of use, but Plug Power's hydrogen supply network has been overwhelmingly sourced from fossil-derived grey hydrogen (SMR), meaning lifecycle GHG savings are marginal or negative versus diesel alternatives; its green hydrogen production plants have faced repeated delays and underperformance, leaving the core climate thesis largely unrealised to date.

Credible, science-based targets (SBTi), a real net-zero plan with progress to date, and CDP disclosure — not just a dated press release.

Plug Power has published internal sustainability goals around green hydrogen production capacity (e.g. 1,000 tonnes/day by 2028) and has disclosed to CDP, but it has not achieved SBTi target validation, its net-zero roadmap lacks rigorous third-party verification, and multiple production milestones have already been missed, undermining target credibility.

Operational footprint, labour and social practices, and governance quality across the company's own operations and supply chain.

Plug Power has published an annual ESG/sustainability report covering Scope 1–2 emissions, diversity metrics, and board governance, but its operational footprint includes energy-intensive cryogenic hydrogen liquefaction and distribution; significant workforce reductions (~20–25% headcount cuts in 2023–2024) raise labour concerns, and corporate governance was badly damaged by a major financial restatement in 2021.

Quality of disclosure, independent third-party verification, and how much hard data backs the company's claims.

Plug Power files with the SEC and publishes annual ESG reports with some quantitative emissions data and CDP responses, which is above average for the sector; however, its hydrogen supply chain carbon intensity is not independently audited at granular level, its green hydrogen production volumes are self-reported, and the 2021 financial restatement covering multiple prior years raises serious concerns about data reliability.

Controversies, litigation, pollution, fossil-fuel lobbying, conflict-zone involvement and governance scandals. Higher means cleaner.

Material integrity concerns include: (1) a major 2021 SEC-required financial restatement across three years of accounts; (2) a 2023 SEC going-concern warning due to cash burn and inability to fund operations; (3) multiple class-action securities lawsuits from shareholders; (4) marketing of hydrogen fuel cell solutions as 'green' while the majority of supplied hydrogen was fossil-derived; and (5) significant 2023–2024 layoffs after aggressive hiring on federal subsidy expectations.