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Thanks to our community’s support, 2025 was our most successful year yet. Our Deep Dive accelerator delivered more than 150 mentoring sessions to clean tech founders, and over the past two years, CleanStart-supported companies have gone on to access more than $50 million in capital—turning innovation into real climate and economic solutions for California.

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Cleantech Meetup |Is This Region Becoming a Battery & Energy Storage Hub?

The momentum around battery storage, home energy systems, and advanced battery manufacturing is building fast — and our February 26 Battery Storage Meetup made that clear. More than 60 attendees gathered to hear from four companies doing world-class work in clean energy. By the end of the discussion, one theme stood out: this region has the potential to become a nationally recognized battery and energy storage innovation hub.

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Supporting entrepreneurs in their fight against climate change

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Helping Entrepreneurs and Innovators Bring Their Clean Tech Ideas to Life Since 2005

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Latest Blogs

Dive into the dynamic landscape of clean tech, exploring ideas and success stories.

The Future of Agriculture Is Biological

How Greater Sacramento Is Building the Ecosystem to Lead a $35 Billion Revolution Synthetic fertilizers transformed global agriculture in the early 20th century, catalyzed by the Haber-Bosch process and the expansion of international fertilizer trade. Regions like...

Clean Skies Are Coming to California — But Will You Have a Seat at the Table?

From billion-dollar incentive programs to autonomous electric aircraft already in the field, the state is accelerating the zero-emissions transition. Here's how entrepreneurs and businesses are collaborating with CARB - and how you can get involved. California's clean...

How Energy Storage Companies Actually Make Money in California

If you're building a company around battery storage in California, you already know the technology works. The harder question — the one that keeps founders up at night — is how to turn that technology into a sustainable business. At CleanStart's most recent...

Is This Region Becoming a Battery & Energy Storage Hub?

At our battery storage meetup on February 26, five dozen people came to be inspired by all the world-class work being done here. We had four panelists, and by the end of the meeting, it was clear all four of their companies had the potential to make a big impact...

Why All Generation Is Moving Toward Storage + Arbitrage?

For years, batteries were framed as a companion to wind and solar — a way to smooth intermittency and shift renewable energy into the evening peak. That story is now outdated. The new reality? Every major power generation source — gas, nuclear, hydro, geothermal, even...

Solir and Plumas Wood Fiber Secure State Grants

Two more graduates from our accelerator program have landed major funding to scale their innovations. Both companies were awarded competitive grants from the California Office of Small Business Advocate (CalOSBA) and the California Infrastructure and Economic...

Are New Energy Storage Technologies Emerging Fast?

Just when it feels like the energy storage landscape is starting to make sense, new technologies keep popping up—often landing in inboxes faster than they can be fully evaluated. From hybrid compressed air systems to radically new battery chemistries, the pace of...

Is Geothermal Ready to Power a Decarbonized Grid?

Geothermal energy has always been framed as the clean energy solution that should work. It offers firm, 24/7 baseload power, tiny land footprints, and zero carbon emissions. In theory, it complements intermittent renewables perfectly. In practice, geothermal has had a...

Will Kern County Lead in Advanced Energy Storage?

Hydrostor, a Canadian energy storage company, is breaking new ground in California with its Advanced Compressed Air Energy Storage (CAES) project in Kern County. The $1.5 billion initiative, named Willow Rock, will feature a 500 MW peak output and 4 GWh energy...

Is Sacramento becoming a Hub for Battery Innovation?

For decades, the Bay Area has been celebrated as California’s technological epicenter. With giants like Google, Apple, and Salesforce, it’s hard to imagine any region overtaking Silicon Valley in software innovation. However, the Greater Sacramento Valley is quietly...

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Regional Companies

Our comprehensive map is a dynamic guide highlighting the emerging and thriving cleantech companies in our region.

Facilitates Collaboration:
- Fosters networking and partnerships among nearby cleantech companies, driving collaborative initiatives.
Economic Boost:
- Attracts investment, creates jobs, and stimulates economic growth by showcasing a thriving regional cleantech sector.
Community Engagement:
- Enhances community awareness, encouraging local support and participation in sustainable initiatives.