Constellation Energy controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
Back to profile5 entries
2025
Conowingo Dam environmental dispute
Constellation and environmental organizations reached an agreement announced by Maryland officials concerning water-quality, sediment, nutrient, and relicensing issues associated with the Conowingo Dam. The agreement followed years of litigation and regulatory disagreement.
2025
Nuclear-worker compensation antitrust lawsuit
Constellation was named among defendants in a proposed federal class action alleging that nuclear operators and consulting firms shared compensation information in ways that suppressed worker pay. The claims were allegations and the litigation remained pending against multiple defendants.
2013
California market transaction settlement
FERC approved a settlement involving Constellation Energy Commodities Group over transactions in the California Independent System Operator market. The matter concerned falsely designated transactions submitted to affect bid awards at interties.
2012
Electricity-market manipulation settlement
Constellation Energy Commodities Group reached a Federal Energy Regulatory Commission settlement concerning alleged manipulation of ISO New England and New York Independent System Operator markets. The resolution included civil penalties, disgorgement, trading restrictions, and compliance obligations.
2008
Lehman-related market crisis
Reports that Constellation had exposure to Lehman Brothers contributed to a dramatic one-day share-price fall and a temporary exchange trading halt. The episode prompted the company to seek strategic alternatives and negotiate possible transactions.