Helion Energy is developing a pulsed magneto-inertial fusion reactor that aims to generate electricity directly, with a power purchase agreement signed with Microsoft.
| date | round | amount | valuation | investors |
|---|---|---|---|---|
| Jun 2026 | Series G | $465M | not disclosed | not disclosed |
Helion's pulsed magneto-inertial fusion captures electricity directly without steam turbines, offering a path to lowest cost per kWh; Microsoft has signed a 50MW power purchase agreement for 2028 delivery.