SunPower Acquires Sunder Energy, Becomes 5th-Largest U.S. Residential Solar Provider By Installed Megawatts

SunPower, formerly known as Complete Solaria, Inc., has completed the acquisition of Sunder Energy, a leading U.S. residential solar sales company. With this acquisition, SunPower is now positioned as the fifth-largest residential solar provider in the country by installed megawatts, according to data from Ohm Analytics. The deal is expected to significantly boost SunPower’s revenue, returning it to pre-Investment Tax Credit (ITC) levels and setting the stage for record highs. The new revenue will be driven by Sunder’s 893-member independent salesforce, supported by 20 permanent employees who have already transitioned to SunPower.

This lean structure is projected to deliver record operating income in the fourth quarter of 2025. T.J. Rodgers, Chief Executive Officer of SunPower, described the acquisition as transformational. He highlighted the strength of Sunder’s sales management processes and explained that SunPower would be adopting Sunder’s proven software and business methods across both organizations. A trial run before the acquisition involved integrating 64 Sunder deals into SunPower’s systems, which confirmed the sales team’s adaptability. As a result, the acquisition effectively doubles SunPower’s salesforce from 841 to 1,734 representatives.

Eric Nielsen, President of Sunder Energy, expressed strong enthusiasm for the merger, noting that interest from sales professionals has surged since the announcement. He explained that Sunder had already extended dozens of invitations to new recruits, which he sees as a sign of rapid future growth and expanding market share for the combined company. Rodgers also shed light on the integration strategy, drawing on his extensive acquisition experience at Cypress Semiconductor.

A joint 10-person leadership team, supported by 18 senior managers from both companies, has already identified 60 integration deliverables. This number is expected to grow to about 310 within a month, covering all aspects of the merger. The goal is to fully integrate Sunder into SunPower within one quarter, ensuring the company captures maximum value from the acquisition while aligning all employees with SunPower’s long-term objectives.

According to Rodgers, the speed and structure of this integration will allow SunPower to achieve profitability within 180 days, with the Sunder deal accelerating this path further. He emphasized that SunPower is now better positioned to expand its market presence, strengthen sales operations, and deliver greater value to shareholders while supporting the growth of the U.S. residential solar industry.