Halide Energy
Copper flow battery for long-duration grid storage: copper is the active material in an aqueous, non-flammable electrolyte held in external tanks, so power and capacity scale independently. 4–12 h discharge, 25 000+ cycles, 75 %+ round-trip efficiency and a 25-year design life, with nearly all the copper recoverable at end of life; the company targets cost parity with lithium BESS by using cheap materials and off-the-shelf manufacturing equipment. Aalto University spin-off (2025), earlier known as the CuRen project; CEO and co-founder Paul Wong. Letters of intent signed, first commercial installations targeted for late 2026.
The row
- Stage
- Pre-revenue — No sales yet
- Location
- Espoo
- Founded
- 2025
- Research origin
- Aalto
- Business ID
- 3507866-8 · Finnish trade register
- Funding
- First close of an investment round (BSV Ventures lead, with LAB7 / Aramco); amount not disclosed
Links
Where this sits on the map
Halide Energy is one of 32 companies in Energy, Climate & Environment. The others:
How this row was decided
Every row on this map is checked by hand against the trade register and the company's own material, and placed in the sector that best describes its business or its technology. Service firms and consultancies are left out, however advanced the technology they work with — the test is where the revenue comes from. Only funding figures the company or its investor has published are shown. The full rules are on the landscape ↗