Clean Tech Daily — 2026-09-22
Today's clean tech headlines center on second-life batteries and ultra-fast EV charging: a French startup is turning old EV packs into cheap solar storage, while Geely readies a 2.2 MW charger promising 4-minute charges. Investment trackers also highlight $2.2 trillion in global clean energy capital flows for 2026 amid rising investor risks.
Clean Tech Daily — 2026-09-22
French Startup Battwoo Cuts Solar Storage Costs 30% With Second-Life EV Batteries
A French startup called Battwoo is repurposing electric vehicle batteries for stationary energy storage, targeting solar self-consumption and other commercial and industrial applications. The company says its refurbished systems can cost around 30% less than new batteries while extending battery service life by several years.
Battwoo is part of a larger trend of second-life battery projects appearing across Europe and Australia; Australia's small-scale battery boom earlier this year — over 111,000 systems approved and 3.6 GWh installed in a single quarter — shows how fast home-scale storage demand is growing.
As EV adoption grows, retired packs are becoming a feedstock for stationary storage, potentially lowering the overall system cost of solar-plus-storage and reducing demand for new cell production.
EVs & Batteries
Geely Readies 2.2 MW Charger for 4-Minute EV Charging
Geely is preparing to unveil an advanced electric car battery and charging system that enables 4-minute charges. The company says the charging speed is about 50% faster than Chinese rival BYD's newest "Flash Charging 2.0" system.
Review: 2026 Chevrolet Bolt EV Charging Performance Tested
Electrek tested the refreshed 2026 Chevrolet Bolt EV, finding that with an official range of 422 km (262 miles), up to 295 km (183 miles) can be recharged in 33 minutes. The best charging session requires a station capable of outputting more than 410A at 385V.
Hydrogen & Emerging Tech
Hydrogen in 2026: A Fossil Fuel Reality Check
Clean Energy Group's hydrogen analysis found that over 90 percent of hydrogen projects in the US are tied to fossil fuels, based on its interactive map of projects under construction or operational in the US. The finding underlines the gap between clean hydrogen ambitions and the current project pipeline.
Policy & Investment
- New analysis from Success Knocks estimates $2.2 trillion in global capital flowing to solar, storage and grids in clean energy investment for 2026, with a U.S. action plan for investors.
- A companion analysis ranks clean energy investment by country, with China leading, the EU growing fastest, and the US holding steady through 2025–2026.
- A separate Success Knocks piece flags major risks for clean energy investors in 2026, including policy shifts, permitting delays, and supply chain hits.
By the Numbers
| Metric | Value | Context |
|---|---|---|
| Global clean energy capital in 2026 | $2.2 trillion | Solar, storage, and grids investment estimate |
| Battwoo storage cost discount | ~30% | Refurbished EV battery systems vs. new batteries |
| Geely charging power | 2.2 MW | ~50% faster than BYD's Flash Charging 2.0 |
| Fossil-linked US hydrogen projects | >90% | Share of US hydrogen projects tied to fossil fuels |
| 2026 Bolt EV recharge in 33 min | up to 295 km | Requires >410A at 385V charging |
What to Watch This Week
- Geely's battery-and-charging unveiling on Wednesday: the promised 4-minute charge could reset expectations for EV refueling speeds if confirmed.
- The BYD vs. Geely charging arms race: watch whether BYD responds to Geely's 2.2 MW claim with further updates to Flash Charging 2.0.
- 2026 investment risk factors: investor-focused analyses point to tax-credit deadlines and permitting delays as the key variables to track into 2027.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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