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News Release - CMS ENERGY Exhibit 99.1 CMS Energy Announces First Quarter Earnings Results of $ 1.21 Per Share , Reaffirms 2021 Guidance JACKSON , Mich . , April 29 , 2021 - CMS Energy announced today reported earnings per share of $ 1.21 for the first quarter of 2021 , compared to $ 0.85 per share for the same quarter in 2020. The company's adjusted earnings per share for the first quarter of 2021 were $ 1.21 per share , compared to $ 0.86 per share for the same quarter in 2020. The primary drivers of CMS Energy's financial performance were customer investments and sustained cost performance from 2020 . " We will continue to invest in Michigan and in our communities while leading the clean energy transformation with support from our 5 - year , $ 13.2 billion customer investment plan which focuses on building out renewable energy and enhancing the safety and reliability of our electric and gas systems as we move toward net zero carbon and methane emissions , " said Garrick Rochow , President and CEO of CMS Energy and Consumers Energy . CMS Energy reaffirmed its guidance for 2021 adjusted earnings of $ 2.83 - $ 2.87 * per share ( * See below for important information about non - GAAP measures ) reflecting continued strong growth of 6 to 8 percent , with a bias toward the midpoint . CMS Energy ( NYSE : CMS ) is a Michigan - based energy provider featuring Consumers Energy as its primary business . It also owns and operates independent power generation businesses . # # # CMS Energy will hold a webcast to discuss its 2021 first quarter results and provide a business and financial outlook on April 29 at 9:30 a.m. ( EDT ) . To participate in the webcast , go to CMS Energy's homepage ( cmsenergy.com ) and select “ Events and Presentations . "