MARS Energy Group Expands California Footprint with Major Solar Acquisition
Sacramento, Thursday, 27 August 2026.
MARS Energy Group acquired Citadel Roofing & Solar on August 27, 2026, adding 1,000 employees and creating a 180-megawatt annual solar powerhouse to lead California’s residential market.
MARS Energy Group Expands California Footprint with Major Solar Acquisition
MARS Energy Group announced its strategic acquisition of California-based Citadel Roofing & Solar on August 27, 2026, marking the company’s 11th acquisition [1]. The deal expands MARS’s operational capacity by adding over 1,000 employees and consolidates its position as a primary provider of integrated solar and roofing solutions for homebuilders across the state [1]. This transaction combines two organizations with complementary strengths, creating a stronger platform to serve homebuilders and homeowners across California [1]. The acquisition highlights ongoing consolidation in the renewable infrastructure sector as developers seek end-to-end service capabilities to navigate evolving state building mandates and demand [1].
Strategic Consolidation in Renewable Infrastructure
The partnership brings together MARS Energy Group, a holding company focused on scaling energy infrastructure businesses across the United States, and Citadel Roofing & Solar, a Northern California contractor specializing in residential new construction roofing and solar [1]. Citadel Roofing & Solar was founded in 2015 by industry veterans and is a market leader in the Northern California residential new construction roofing and solar sector [1]. By integrating commercial and residential energy solutions, the combined entity aims to better navigate the complex regulatory environment and service demands of the region [1]. This move underscores a broader trend where developers seek comprehensive service capabilities to manage evolving state building mandates effectively [1].
Operational Capacity and Workforce Growth
According to industry commentary, the combination of MARS Energy Group and Citadel Roofing & Solar creates a 180MW/year solar powerhouse [2]. MARS continues to leverage its capital position to bring aboard the best in the business and build the infrastructure and expertise to grow in times of adversity [2]. With the Solar Savings Direct and Citadel acquisitions, residential retrofit capabilities for existing homes are now positioned to be second to none in California under the MARS Home Solutions brand [2]. Citadel also operates reroofing and retrofit solar businesses alongside its new construction focus, broadening the serviceable market [1].
Leadership Continuity and Market Outlook
Citadel will retain its existing management team, including Dieter Folk, Helmut Gehle, Eric Owen, Wendi Zubillaga, Stephanie Crichton, and Jeff Maxfield, and will continue to operate under its established leadership structure [1]. Dieter Folk, President of Citadel Roofing & Solar, stated that the partnership represents an exciting new chapter and that it was important to find a partner who believed in their people and respected their culture [1]. Manvendra Saxena, Founder, Chairman & CEO of MARS Energy Group, noted that Citadel is a partnership that feels like it was meant to be due to their operational excellence and culture [1]. The existing management team will retain their leadership roles following the acquisition, ensuring stability during the transition [1].