Caelux
PrivateLast Round
Series A
Extension
Aug 14, 2023
Est. Valuation
$60M
Total Funding Raised
$24M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Caelux operates in Energy & Sustainability and is based in Baldwin Park, California. Its latest recorded funding round was a Series A Extension round in August 2023.
Caelux is a renewable energy company that develops and manufactures perovskite-based solar power products, including its proprietary Active Glass technology, to enhance the efficiency and performance of crystalline silicon solar modules.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Caelux Comparables
Compare Caelux with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Tandem PV | 93% | |
| Swift Solar | 87% | |
| CubicPV | 86% |
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Caelux Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A Extension | Aug 14, 2023 | ||||
| Series A | Sep 23, 2022 | ||||
| Seed | May 14, 2014 |
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Key People
Founding team and executive leadership
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Caelux Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Fine Structure Ventures | Series A Extension |
| Temasek | Series A Extension |
| Khosla Ventures | Seed, Series A, Series A Extension |
Market signals
Structured signals derived from secondary market and firmographic data.
- Nov 12, 2026
CEO Scott Graybeal presented technology roadmap at pv magazine USA Week 2026.
- Nov 12, 2026
Perovskite glass integrated into Heliene's new tandem modules.
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Recent news
Latest coverage and updates
- attends_eventNov 12, 2026
Caelux Corporation attends pv magazine USA Week 2026, where its CEO outlines the company’s technology roadmap and says current-generation glass enables silicon modules with efficiencies of 26.7% to 28.2%.
- launchesNov 11, 2026
Caelux begins commercial production of the Hybrid-Tandem solar module for the United States market on Nov 11th '26, combining perovskite and silicon layers to deliver conversion efficiencies of up to 27% and higher power density.
- integrates_withNov 10, 2026
On Nov 10th '26, Caelux integrates its Energy Producing Glass into Heliene, Inc.'s established silicon module platform in Minnesota to produce a commercial-scale Hybrid-Tandem solar module with two power-generation layers and efficiencies up to 27%+ for the U.S. market.
- is_developingNov 10, 2026
Caelux develops ultra-high-efficiency solar modules with Heliene under a multi-year, multi-gigawatt agreement; Heliene actively produces the Hybrid-Tandem(TM) module in Minnesota, with deliveries available in 2027.
- is_developingOct 27, 2026
Caelux and INA Solar plan to develop hybrid-tandem solar modules for India by combining TOPCon cells with perovskite-based power-generating glass, targeting efficiencies of up to 29% by 2028.
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Caelux Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
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Frequently Asked Questions
Common questions about Caelux's valuation, stock price, and market status.
Is Caelux a public or private company?
Caelux is a private company.
What is the current stock price of Caelux?
Caelux is a private company, so its shares have no public market price. Caplight tracks Caelux's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Caelux worth (valuation)?
Caelux's valuation is estimated at $60.0M based on funding round data.
Can I buy Caelux stock?
Caelux shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Caelux's last funding round?
Caelux's most recent funding round was Series A Extension on August 14, 2023.
Who are the main investors in Caelux?
Key investors in Caelux include Temasek.
Will Caelux IPO soon?
No public IPO plans have been announced for Caelux.
How can I track Caelux secondary market activity?
Caplight tracks bids, offers, and trades in Caelux's shares on secondary markets.