October 14–16, 2025 · San Francisco

The Future of Climate
Technology

Three days where the builders, investors, and policymakers shaping the decarbonization economy come together to close the gap between ambition and action.

2,500+
Attendees
60+
Speakers
3
Days
$12B
Capital in Room
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About the Summit

Where climate ambition meets engineering reality

NEXUS is the premier gathering for the climate technology ecosystem. Founded in 2021, we've grown from a 200-person salon into the must-attend event for anyone building, funding, or regulating the transition to a net-zero economy.

This isn't a conference of platitudes. Every session is designed for practitioners — the engineers scaling carbon removal, the operators building grid-scale storage, the investors deploying patient capital, and the policymakers writing the rules that will shape the next decade.

Built for:

Climate Tech Founders
Deep tech to software
VCs & Institutional Investors
$50B+ AUM in attendance
Enterprise Sustainability Leads
Scope 1, 2, & 3 strategists
Policymakers & Regulators
State, federal & international
2024 Recap
92%
of attendees said they made at least one meaningful partnership or deal
47
Countries represented
340
1:1 meetings booked
127
Sessions across 6 tracks
Confirmed Speakers

Learn from the people building the future

Our speakers aren't just talking about change — they're shipping it. Founders, operators, and leaders from the most impactful organizations in climate tech.

AR
Dr. Amara Reeves
CEO & Co-founder
Leading CarbonCure's next phase of scale — injecting CO₂ into concrete at industrial scale. Amara's keynote covers the economics of permanent carbon removal and why the $200/ton market is bigger than anyone thinks.
Keynote Carbon Removal
MK
Marcus Kim
Head of Climate, Stripe
How Stripe's Climate initiative has facilitated over $1B in donations to carbon removal projects. Marcus breaks down the infrastructure challenges of carbon credit verification and what "high-integrity" really means.
Fireside Chat Carbon Markets
SP
Sofia Petrova
VP of Energy Storage, Tesla
Inside the Megapack deployment pipeline — from gigafactory to grid. Sofia shares the real-world data from Tesla's 10+ GWh of deployed storage and what it means for grid reliability in extreme weather events.
Technical Deep Dive Energy Storage
JN
James Nakamura
Managing Partner, Breakthrough Energy Ventures
What BEV is looking for in 2025 and beyond. James reveals the portfolio strategy behind some of climate tech's most successful exits and shares the three metrics every climate founder should track from day one.
Investor Panel Venture Capital
LW
Dr. Lena Watanabe
Director, DOE Advanced Manufacturing Office
Decoding the Inflation Reduction Act's manufacturing credits and how to actually access them. Lena provides the clearest breakdown yet of Section 45X and 45Y tax credits for clean energy manufacturers.
Policy Deep Dive IRA & Tax Credits
DO
David Okonkwo
CTO, Helion Energy
The state of commercial fusion — where we actually are, not what the hype cycle says. David shares candid updates on Helion's pilot plant timeline and the physics breakthroughs that changed the equation in 2024.
Technical Talk Fusion Energy

Plus 50+ more speakers across all tracks

View full speaker lineup
Session Tracks

Six tracks. Zero fluff.

Every session is vetted for technical depth and practical relevance. No keynotes that could have been emails.

Clean Energy & Grid

Solar, wind, storage, fusion, and the grid infrastructure needed to integrate them. From utility-scale to microgrid deployments.

18 sessions · 2 workshops

Carbon Removal & Markets

DAC, biochar, enhanced weathering, and the evolving carbon credit marketplace. Verification, pricing, and the path to scale.

14 sessions · 1 roundtable

Climate Finance

VC, PE, public markets, and blended finance. How capital is flowing into climate solutions and what investors are looking for.

12 sessions · 2 panels

Policy & Regulation

IRA implementation, EU CBAM, carbon pricing mechanisms, and the regulatory landscape shaping the next decade of climate action.

10 sessions · 1 workshop

Sustainable Industry

Green hydrogen, sustainable aviation, circular materials, and decarbonizing the hardest-to-abate sectors of the global economy.

15 sessions · 2 workshops

Climate Software & AI

ESG data platforms, supply chain tracking, AI for climate modeling, and the software layer enabling the transition.

16 sessions · 1 hackathon
Schedule

Three days. One mission.

Moscone Center West, San Francisco — October 14–16, 2025

8:00 AM – 9:00 AM
Registration & Welcome Coffee
Main Lobby · Pick up your badge, grab breakfast, and browse the sponsor showcase
9:00 AM – 10:00 AM
Opening Keynote: The State of Climate Tech in 2025
Dr. Amara Reeves, CEO & Co-founder, CarbonCure
Grand Ballroom A · Main Stage
10:15 AM – 11:30 AM
Parallel Sessions Begin
Grid-Scale Storage: Lessons from 10 GWh Deployed
Sofia Petrova, Tesla · Room 201
The IRA Decoded: A Playbook for Clean Manufacturers
Dr. Lena Watanabe, DOE · Room 202
What Climate VCs Are Actually Buying in 2025
James Nakamura, BEV · Room 203
11:45 AM – 1:00 PM
Workshop Block & Networking Lunch
Hands-on workshops in carbon accounting, IRA compliance, and climate data engineering. Catered lunch included with all tickets.
1:30 PM – 3:00 PM
Fireside Chat: The Future of Carbon Markets
Marcus Kim, Stripe · Moderator: Priya Sharma, BloombergNEF
Grand Ballroom A · Main Stage
3:15 PM – 4:30 PM
Panel: Hard-to-Abate Sectors
Steel, cement, aviation, and shipping — the industries responsible for 30% of global emissions and the technologies that will decarbonize them.
5:30 PM – 7:30 PM
Welcome Reception & Demo Showcase
Terrace Level · Cocktails, live music, and 40+ startup demos. The best place to make connections that last beyond the summit.
Venue

Moscone Center West

747 Howard Street
San Francisco, CA 94103
October 14–16, 2025
Check-in begins at 8:00 AM each day
Getting There
5 min from Powell St BART · Valet parking available
Group Rates at Partner Hotels

Special rates at Hyatt Regency SF, Hotel Nikko, and Marriott Marquis. Book by September 1 for best availability.

Moscone Center West
San Francisco, CA
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Tickets

Choose your experience

Early bird pricing ends August 31. Group discounts available for 5+ attendees.

General Admission
$799 $599
per person · early bird
  • Access to all 6 session tracks
  • All keynotes & main stage events
  • Catered lunches (3 days)
  • Welcome reception access
  • Demo showcase & networking
Get General Admission
Most Popular
Professional Pass
$1,499 $1,199
per person · early bird
  • Everything in General Admission
  • All workshops & roundtables
  • 1:1 meeting scheduler access
  • Speaker dinner invitation
  • Session recordings (30-day access)
  • Priority seating for keynotes
Get Professional Pass
VIP Experience
$2,999 $2,499
per person · early bird
  • Everything in Professional Pass
  • VIP lounge with premium catering
  • Exclusive speaker breakfast (Day 2)
  • Guaranteed 3x 1:1 meetings
  • Lifetime access to session recordings
  • Dedicated concierge & fast-track entry
Get VIP Experience

Need a custom group rate or sponsorship package? Contact our team

Trusted by teams at

Stripe Tesla Breakthrough Energy Microsoft Patagonia First Round BloombergNEF Helion
FAQ

Common questions

The climate doesn't wait.
Neither should you.

Join 2,500+ leaders at the most consequential climate technology event of the year. Early bird pricing ends August 31.

October 14–16, 2025 · Moscone Center West, San Francisco