Grant Holloway
Managing Partner, New York
Sectors
Climate
Clean power is now cheap to generate and slow to connect. Our climate investing has followed the bottleneck: storage, the software that balances a crowded grid, and the materials that let heavy industry use less of it.
- companies
- 5
- active
- 4
- exit
- 1
- first investment
- 2016
What we look for
These companies need more capital and more patience than most software. We size our reserves for that, and we back teams who can explain their unit economics without a subsidy in the sentence.
Storage and flexibility
Long-duration storage and virtual power plants that let a grid absorb more wind and solar.
Lower-carbon materials
Cement, timber and steel inputs that compete on price as well as on emissions.
Measurement
Verification that buyers of carbon removal and clean materials can check for themselves.
Climate companies
Open in the directory- Carbon removal, verified from orbitClimateSeries A, 2026Active
- Software for virtual power plantsClimateSeed, 2025Active
- Traceable timber for constructionClimateSeries A, 2023Active
- Low-carbon cement for precast makersClimateSeed, 2025Active
- Long-duration storage for coastal gridsClimateSeed, 2016IPO, Oslo Børs
Who to talk to
Clara Novak
Partner, Stockholm
Hana Weber
Principal, Stockholm
From the journal
Investor letters
Third-quarter letter, 2026
Our letter to the partners in our funds for the third quarter of 2026: two new commitments, a partial sale of Payfield, and progress at Albedo and Juniper.
Grant Holloway and Sofia Ortega
Investor letters
Second-quarter letter, 2026
Our letter to the partners in our funds for the second quarter of 2026: two new Fund V investments, early results at Amperra and Kiln, and where Fund III stands after Ostra.
Grant Holloway and Sofia Ortega
Essays
The grid is the bottleneck
Clean power is now cheap to build and slow to connect. Why our climate investing has shifted towards storage, grid software and the industries that must plug in.
Clara Novak and Hana Weber