Top California Renewable Energy Startups (60)

At TransGrid Energy we specialize in developing, owning, and operating utility-scale energy storage and PV projects, fundamental to establishing a resilient and sustainable energy grid.

ZEROVA, a subsidiary of Phihong, emerged as a standalone company on September 1, 2022. Its primary objective is to specialize in the EV Charging Market. ZEROVA offers a comprehensive range of EV charging solutions for both commercial and passenger vehicles. Leveraging its robust research and development capabilities and extensive manufacturing expertise, ZEROVA develops high-quality hardware and software products tailored to...

Focused on sustainability and innovation, esVolta develops, owns, and operates reliable utility-scale energy storage assets across the entire lifecycle - delivering value for utilities, energy users, and investors.

Reflect Orbital is developing technology to sell sunlight to those who need it. We imagine a future where sunlight continues powering solar farms and providing lighting after the sun sets. We’re a small team of engineers who make progress by building things quickly and iteratively. Time is our greatest constraint. Join us.

Luminus is a vertically integrated, fast-growing high-tech company that engages in high-power Light-Emitting-Diode (LED) solid-state lighting, lasers, and SiC power semiconductors for a variety of application areas, including industrial UV, IR, medical, projection displays, high-end illumination lighting, horticulture lighting, grid energy storage, EV and automotive industries. Luminus is at the forefront of the ongoing solid-state lighting revolution and SiC power...

Baya Systems is driving the next wave of foundational chiplet-based, high-performance, and modular semiconductor systems, with a focus on best-in-class on-chip fabric and communication technologies. By enabling seamless interoperability across a diverse array of industry-standard protocols, Baya Systems empowers best-of-breed compute, communication, and I/O solutions to work together. This approach enhances performance, yield, reusability, composability, development time and cost-efficiency. Named...

We are a green environmental testing and consulting firm, dedicated to providing the highest level of customer service available in the industry. Contact our office at (858) 433-3290 or email us at [email protected] to schedule testing!

Frontier Energy is a professional services firm that excels in market transformation. With a team of 170 talented people in eight offices across the U.S., Frontier Energy has decades of experience in program management, engineering, software, and customer engagement. We are committed to a single mission: To provide exceptional programs, services, and tools that encourage the intelligent use of energy. We...

Founded in 2019, Terabase Energy is a solar technology company whose mission is to reduce the cost and increase the scalability of solar by building an interconnected digital and automation platform for the development, construction, and operations of utility-scale PV power plants.

BlueSky Utility is a leading distributed-generation solar and energy storage developer and independent power producer (IPP). We collaborate with landlords to optimize the value of their asset portfolios and drive down energy expenses through innovative solar and storage solutions.

Powerline develops AI systems for monitoring and operation of energy assets, enhancing the performance in power markets and reducing emissions.

Adapture Renewables is a solar project developer (and M&A shop), owner and operator. The company leverages its proven track record, deep domain expertise and comprehensive in-house development, EPC management, legal and project finance services to efficiently and effectively drive solar projects from origination to long-term operation, and at every stage in-between. Backed by KIRKBI, Adapture Renewables has the financial footing...

We develop, own, and operate energy infrastructure to contribute to the stable and sustainable energy supply in the US and globally. Moreover, by boosting renewable and future energy development and innovation, we aim to be a responsible and reliable energy player in the upcoming low-carbon society.

Soligent Distribution, a subsidiary of Soligent Holdings Inc., is the largest solar distributor in the Americas, supplying thousands of solar installers and contractors with solar energy equipment, engineering services and project financing solutions. Soligent has been a pioneer in the solar industry since 1979 and continues to drive the market forward with innovative solutions ranging from materials management to project...

BoxPower provides clean, reliable, and affordable energy to rural consumers. Our ecosystem of software and hardware solutions optimize the performance and accelerate the deployment of solar plus storage microgrids. From energy audit to operation, BoxPower provides turnkey engineering, construction, and management services.

Blumen is a one stop software for renewables, energy, grid, and data center project development. Turn project files into permitting intelligence and engineering documents in minutes. Slash consulting costs, avoid critical risks, and prevent rework caused by regulatory complexity.

Deep Isolation offers an innovative solution to secure and dispose of spent nuclear fuel from commercial nuclear reactors. Our horizontal drill hole technology offers both safety and low cost. While the drilling technology is standard, Deep Isolation is the first company proposing to use this method for the safe isolation of spent nuclear fuel under a billion tons of rock...

Ensurge is Energizing Innovation™ with ultrathin, flexible, and safe energy storage solutions for wearable devices, connected sensors, and beyond. Ensurge's innovative solid-state lithium battery (SSLB) technology is uniquely positioned to enable the production of powerful, lightweight, and cost-effective rechargeable batteries for diverse applications. The company’s state-of-the-art flexible electronics manufacturing facility, located in the heart of Silicon Valley, combines patented process...

Amprius is a leading Lithium-Ion battery developer. Amprius's silicon technology was originally developed at Stanford University and enables dramatic improvements in the energy density and specific energy of Lithium-Ion batteries. Amprius is backed by some of the world’s leading investors, including Trident Capital, VantagePoint Venture Partners, IPV Capital, Kleiner Perkins Caufield & Byers, and Dr. Eric Schmidt.

Hanwha Energy USA Holdings Corporation, previously doing business as 174 Power Global, is headquartered in Houston, Texas and is a leading solar energy company wholly owned by Hanwha Energy Corporation. With deep expertise across the solar and battery energy storage system (BESS) development cycle, Hanwha Energy USA partners with landowners, local communities, financial investors, and other stakeholders to build highly...