Top 10 Solar EPC Companies in California, USA

California’s radiant landscapes and abundant sunshine make it a prime location for the thriving solar industry. As the demand for renewable energy grows, the role of Solar Engineering, Procurement, and Construction (EPC) companies becomes increasingly crucial. In this article, we delve into the stories and accomplishments of California’s Top 10 Solar EPC Companies, highlighting their contributions to the state’s quest for sustainability and energy efficiency.

In the dynamic solar landscape of California, these companies serve as the silent architects of a greener tomorrow. From bustling cities to serene locales, each company on this list plays a unique role in shaping California’s renewable energy future. Let’s explore their innovative endeavors and pioneering initiatives as they illuminate the path toward a more sustainable and environmentally conscious tomorrow.

SOLV Energy

(Headquartered in San Diego, California)

In sunny San Diego, SOLV Energy leads the charge in solar Engineering, Procurement, and Construction (EPC) services. Known for their comprehensive solar solutions, SOLV Energy has become a prominent figure in California’s renewable energy scene. Their meticulous approach ensures seamless project integration, while their diverse range of cutting-edge solar products expands their impact beyond traditional EPC services. From innovative solar panels to energy storage solutions, SOLV Energy is not just an EPC company but a holistic contributor shaping the sustainable energy landscape of San Diego.

As SOLV Energy’s influence spreads throughout the sun-kissed city, their initiatives go beyond typical solar installations. Their commitment to sustainability shines through in both their precise EPC projects and their varied solar product offerings. With a focus on innovation, SOLV Energy is driving change in San Diego’s energy sector, playing a vital role in propelling the city towards a greener, more sustainable future amidst California’s solar revolution.

Momentum Energy Solutions

(Headquartered in San Francisco, California)

In the city of San Francisco, Momentum Energy Solutions stands out as a leader in the solar EPC field, setting high standards for sustainability and innovation. Known for their strong commitment to eco-friendly practices, Momentum Energy Solutions excels in designing and executing large-scale solar projects with precision. Their proven track record solidifies their reputation as a trusted solar EPC partner, guiding projects from conception to completion with expertise and reliability.

Moreover, Momentum Energy Solutions goes beyond traditional EPC services, offering a diverse array of solar products that contribute to the broader renewable energy market. From state-of-the-art solar inverters to advanced monitoring systems, their innovative solutions drive transformative change within the industry. In San Francisco’s vibrant landscape, Momentum Energy Solutions leaves a lasting impact, blending reliability and innovation to pave the way for a greener future.

Rosendin Electric

(Headquartered in San Jose, California)

In San Jose’s bustling tech scene, Rosendin Electric shines as a leader in solar Engineering, Procurement, and Construction (EPC). Renowned for their expertise in electrical contracting, Rosendin seamlessly applies their mastery to solar projects, emphasizing operational efficiency and sustainability. While they’re known for pioneering electrical solutions, it’s in solar EPC that their innovative spirit truly thrives, reflecting their steadfast dedication to excellence.

Rosendin Electric’s blend of technical prowess and commitment to solar innovation positions them as industry frontrunners, shaping a more sustainable energy future. Their presence in San Jose, a hub of technological progress, highlights their role in advancing solar EPC and contributing to the sector’s ongoing evolution.

Granite Industrial

(Headquartered in Watsonville, California)

In Watsonville, Granite Industrial shines as a leading player in the solar EPC sector, drawing on its strong construction legacy to drive impactful contributions to solar initiatives. With a meticulous approach to Engineering, Procurement, and Construction, the company leaves a lasting mark not only in Watsonville but also extends its influence far beyond.

Beyond mere installations, Granite Industrial’s commitment shapes California’s solar energy landscape, with its headquarters serving as a hub for strategic planning and execution. This focused approach reflects the company’s dedication to advancing solar technology while promoting environmental sustainability. Positioned as an innovator in Watsonville, Granite Industrial sets a benchmark for excellence at the intersection of construction expertise and solar innovation.

CSI Electrical Contractors

(Headquartered in Santa Fe Springs, California)

In Santa Fe Springs, CSI Electrical Contractors shines as a key player in the solar Engineering, Procurement, and Construction (EPC) sector. Known for their expertise in electrical engineering, they seamlessly blend these skills with the complexities of solar energy projects. Specializing in meticulous planning and execution, CSI maintains top-notch quality in every installation. Their headquarters in Santa Fe Springs serves as an innovative hub, driving projects that go beyond mere energy provision, significantly contributing to California’s renewable energy goals. Beyond EPC services, CSI actively shapes the future of solar energy, positioning themselves as vital contributors to California’s sustainability efforts.

CSI Electrical Contractors is a driving force behind California’s renewable energy objectives. Their commitment to excellence, from detailed engineering to flawless execution, makes them a trusted partner in the solar EPC domain. Engaging in broader conversations about solar energy’s future, CSI embodies the crucial role companies like theirs play in California’s journey towards sustainability.


(Headquartered in Aliso Viejo, California)

Cenergy stands out in Aliso Viejo for its work in solar energy. They’re known for offering complete power solutions and leading the way in solar innovation. Their base in Aliso Viejo is where they plan and carry out solar projects, shaping how we use energy. Besides setting up solar panels, Cenergy also creates other renewable energy products like solar power systems and storage solutions. They’re not just powering homes and businesses; they’re also pushing for greener energy practices across California and beyond.

Cenergy tackles solar projects with smart technology and strong dedication. Their base in Aliso Viejo isn’t just an office; it’s where they drive big changes in renewable energy. As Cenergy keeps moving forward, they show how focusing on quality can make green practices more mainstream in California’s energy scene.

Baker Electric

(Headquartered in Escondido, California)

In Escondido, Baker Electric stands out as a leading authority in the solar Engineering, Procurement, and Construction (EPC) field. With a rich history in electrical services, Baker Electric seamlessly expands its expertise to include solar technology. Their specialized knowledge in planning, procurement, and construction positions them as a driving force in Escondido’s solar landscape, marked by a strong commitment to sustainable energy solutions evident in their precise execution of solar projects.

Baker Electric goes beyond traditional EPC services, actively contributing to California’s solar sector with a diverse range of solar products. From their headquarters in Escondido, they spearhead projects that not only promote cleaner energy but also shape a greener, more sustainable future. With a blend of expertise and dedication, Baker Electric emerges as a visionary force shaping California’s journey towards sustainable energy.


(Headquartered in Irvine, California)

In the vibrant tech hub of Irvine, QCells emerges as a prominent figure in the solar Engineering, Procurement, and Construction (EPC) sector. Renowned for their prowess in solar cell technology, QCells seamlessly infuses innovation into every aspect of solar projects. Specializing in overseeing the entire EPC process, they ensure smooth and high-quality solar installations. With their headquarters in Irvine, they serve as a central hub for technological advancements, driving progress not only in solar but also in the broader renewable energy market.

QCells extends beyond their reputation as a manufacturer, taking a leading role in solar energy development both locally in California and globally. Their dedication to pushing the boundaries of innovation and sustainability positions them as a key influencer in shaping the future of solar energy. As QCells continues to innovate, their presence in Irvine exemplifies excellence, technological expertise, and a steadfast commitment to advancing solar energy solutions.

Infinity Energy Inc.

(Headquartered in Rocklin, California)

INFINITY ENERGY INC, nestled in Rocklin, stands out as a key player in California’s solar Engineering, Procurement, and Construction (EPC) sector. Their specialization lies in delivering comprehensive energy solutions with unmatched precision. From inception to completion, their Rocklin headquarters serves as the hub for solar initiatives that surpass conventional boundaries, reflecting their dedication not only to solar installations but also to broader contributions to the renewable energy market.

Beyond individual projects, INFINITY ENERGY INC makes a significant impact on the renewable energy landscape. Their diverse offerings, ranging from solar power systems to advanced energy storage solutions, demonstrate their commitment to holistic progress. By driving the adoption of sustainable energy practices and fostering innovation, they lead the charge in shaping California’s energy future. With a steadfast focus on both project execution and broader technological advancements, they emerge as a cornerstone in the ever-evolving solar industry.

Baja Construction

(Headquartered in Martinez, California)

In Martinez, Baja Construction stands out as a leader in solar EPC services, known for its expertise in crafting solar carports and structures. Their seamless integration of innovation into solar projects ensures flawless deployment, contributing to a sustainable future. Beyond installations, Baja Construction’s proactive contributions to solar energy evolution solidify their position as a significant presence in California’s dynamic solar landscape, guiding the way toward energy efficiency.

Baja Construction’s commitment to advancing solar solutions goes beyond conventional boundaries, marking them as pivotal players in California’s solar evolution. Their precision and forward-looking initiatives underscore their dedication to excellence and sustainability, shaping a greener tomorrow through innovative practices.

Closing the Chapter: A Radiant Future with California’s Solar Pioneers

As we wrap up our exploration of California’s Top 10 Solar EPC Companies, it’s clear that these firms are more than just contributors—they’re the architects of a sustainable future. As we bid adieu to this enlightening journey, it’s evident that each solar pioneer’s impact extends far beyond mere installations. From Escondido to Martinez, these companies have left an indelible mark on California’s renewable energy landscape, weaving a narrative of progress and innovation.

The influence of these Solar EPC Companies stretches beyond their core services, catalyzing change, driving technological progress, and actively engaging in the broader renewable energy market. Their dedication to Engineering, Procurement, and Construction is matched only by their commitment to pushing the boundaries of solar technology. From the sun-soaked vistas of Rocklin to the bustling streets of Santa Fe Springs, their resilience and dynamism shine through, shaping California’s solar industry and inspiring a greener, more sustainable future. As we conclude this chapter, the horizon glows with the promise of a brighter tomorrow, fueled by the ongoing innovation and leadership of these solar pioneers.

Navigating the Solar Landscape in California: A Buyer’s Guide for Solar EPC

As California’s solar landscape continues to evolve, prospective buyers, ranging from Commercial Property Owners to Industrial Facility Managers, find themselves at the forefront of a green revolution. Whether you’re looking to reduce operational costs, enhance property value, or increase energy efficiency, this buyer’s guide aims to provide a compass for making informed decisions in the realm of Solar EPC.

Commercial Property Owners:

  • Goals: If your objective is to reduce operational costs, consider Solar EPC companies in California with a track record of delivering long-term cost savings. Seek out those offering government incentives and rebates, and emphasize the environmental impact of your project.

Large Landowners:

  • Goals: To generate income from unused land, focus on Solar EPC firms that specialize in large-scale installations. Look for partners offering stable and passive income sources, along with opportunities for partnerships in renewable energy production.

Municipal Government Officials:

  • Goals: For implementing sustainable energy solutions, prioritize Solar EPC companies experienced in public projects. Consider those who understand navigating bureaucratic processes, ensuring compliance with regulatory standards, and fostering public and community support.

Industrial Facility Managers:

  • Goals: If reducing energy costs and increasing operational efficiency is your aim, explore Solar EPC providers adept at managing high energy demands. Prioritize companies offering a strong return on investment, reliability, and durability in solar installations.

Key Considerations for All Buyer Personas:

  • Geographical Expertise: Choose Solar EPC companies in California with a strong understanding of the state’s unique solar landscape, climate, and regulations.
  • Experience in EPC: Prioritize companies with a proven track record in Engineering, Procurement, and Construction of solar projects.
  • Technological Advancements: Seek partners who stay abreast of the latest technological advancements in solar energy, ensuring your project benefits from cutting-edge solutions.

This guideline aims to empower buyers in California, offering a roadmap to align their unique goals with the expertise of Solar EPC companies. As the solar industry continues to thrive in the Golden State, strategic decisions will play a crucial role in fostering a sustainable and energy-efficient future.